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NRT Science & Technology Committee Report 2008 i
NRT Science & Technology Committee
Annual Report 2008
INTRODUCTION .................................................................................................................................. 3
2008 SCIENCE & TECHNOLOGY COMMITTEE ............................................................................. 1
OIL SPILL RESEARCH AND DEVELOPMENT ORGANIZATIONS .............................................. 2
RESEARCH & DEVELOPMENT CENTER, US COAST GUARD ..................................................................... 2 OIL SPILL RESPONSE RESEARCH, MINERALS MANAGEMENT SERVICE ..................................................... 2 NATIONAL RISK MANAGEMENT RESEARCH LABORATORY, US EPA ....................................................... 2 COASTAL RESPONSE RESEARCH CENTER, NOAA/UNH ......................................................................... 2 OFFICE OF RESPONSE & RESTORATION, NOAA ..................................................................................... 3
APPENDIX A: RESEARCH DESCRIPTIONS AND ABSTRACTS .................................................... 1
ALTERNATIVE TECHNOLOGIES .............................................................................................................. 1 Mitigating Oil Spills from Offshore Oil and Gas Activities by Enhancement of Oil-Mineral Aggregate
Formation ....................................................................................................................................... 1 Effects of Dispersants on Oil-SPM Aggregation and Fate in US Coastal Waters ............................... 1 Use of Natural Oil Seeps for Evaluation of Dispersant Application and Monitoring Techniques ....... 3 Dispersant Effectiveness as a Function of Energy Dissipation Rate and Particle Size Distribution .... 3 Dispersant SMART Protocol Update ................................................................................................ 4 Upgrade of SMART Dispersant Effectiveness Monitoring Protocol ................................................... 5 Employing Chemical Herders to Improve Oil Spill Response Operations .......................................... 7 Literature Review on Chemical Treating Agents in Fresh and Brackish Water .................................. 8 Characteristics, Behavior and Response Effectiveness of Spilled Dielectric Insulating Oil in the
Marine Environment ........................................................................................................................ 9 Acute and Chronic Effects of Oil, Dispersant and Dispersed Oil to Symbiotic Cnidarian Species .... 11 Dispersant Effectiveness as a Function of Energy Dissipation Rate and Particle Size Distribution .. 12 Dispersion of Crude Oil and Petroleum Products in Freshwater .................................................... 13 Development of a Protocol for Testing the Efficacy of Surface Washing Agents in Removing Oil
Contaminating the Surfaces of Shorelines ...................................................................................... 14 Aerobic Biodegradability and Toxicity of Non-Petroleum Oils........................................................ 15 Effect of Particle Size, Oil Contamination, and Water Table Level on the Effectiveness of Sorbents in
Wicking Oil from the Subsurface .................................................................................................... 15 Anaerobic Biodegradability and Toxicity of Non-Petroleum Oils .................................................... 16 Optimization of Nutrient Application for Oil Bioremediation on Beaches........................................ 17 Biodegradability and Toxicity of Biodiesel Blends .......................................................................... 18
CHEMICAL ANALYSIS AND FINGERPRINTING ........................................................................................ 19 COLD WEATHER & OIL-IN-ICE RESEARCH ........................................................................................... 19
Arctic Operations Research ........................................................................................................... 19 Oil-in-Ice: Transport, Fate, and Potential Exposure....................................................................... 19 Research at Ohmsett on the Effectiveness of Chemical Dispersants on Alaskan Oils in Cold Water . 22 Oil Recovery with Novel Skimmer Surfaces under Cold Climate Conditions ................................... 24 Cold Climate Research .................................................................................................................. 25
COMMAND, CONTROL & COMMUNICATIONS ........................................................................................ 26 DISPERSANTS ..................................................................................................................................... 26
Development of a Training Package on the Use of Chemical Dispersants for Ohmsett - The National
Oil Spill Response Test Facility ..................................................................................................... 26 Chemical Dispersant Research at Ohmsett ..................................................................................... 27 Chemical Dispersant Research at Ohmsett: Phase 2 ...................................................................... 30
FATE & BEHAVIOR MODELING & ANALYSIS ........................................................................................ 32
NRT Science & Technology Committee Report 2008 ii
Oil Spill Training and Response (STAR) Calculator Program ........................................................ 32 Validation of the Two Models Developed to Predict the Window of Opportunity for Dispersant Use in
the Gulf of Mexico ......................................................................................................................... 33 HAZMAT Spill Behavior and Trajectory Modeling ......................................................................... 35 Improvements to the Work on Integration of NOAA's GNOME Model with CDOG (Clarkson
Deepwater Oil and Gas) Blowout Model ........................................................................................ 35 Measurements and Modeling of Size Distributions, Settling and Dispersions Rates of Oil Droplets in
Turbulent Flows ............................................................................................................................ 36 GNOME2 ...................................................................................................................................... 36 A Module for NOAA's GNOME Model to Provide Capability to Simulate Deepwater Oil and Gas
Spills ............................................................................................................................................. 37 Fate and Effects of Emulsions Produced After Oil Spills in Estuaries ............................................. 39 Mitigating Oil Spills from Offshore Oil and Gas Activities by Enhancement of Oil-Mineral Aggregate
Formation ..................................................................................................................................... 40 Development of a Numerical Algorithm to Compute the Effects of Breaking Waves on Surface Oil
Spilled at Sea: Dispersion and Submergence/Over-washing as Extremes of a Theoretical Continuum
..................................................................................................................................................... 40 Delivery and Quality Assurance of Short-Term Trajectory Forecasts from HF Radar Observations. 41 Measurements and Modeling of Size Distributions, Settling and Dispersions (turbulent diffusion)
Rates of Oil Droplets in Turbulent Flows ....................................................................................... 42 Identification of Window of Opportunity for Chemical Dispersants on Gulf of Mexico Crude Oils .. 43 Understanding the Effects of Time and Energy on the Effectiveness of Dispersants ......................... 44 Changes with Dispersant Effectiveness with Extended Exposure in Calm Seas ................................ 45
HAZARDOUS SUBSTANCE RESPONSE ................................................................................................... 47 CAMEO Chemicals: NOAA’s New Online Tool for Hazardous Materials Responders..................... 47 River Dilution Calculator for Chemical Spills ................................................................................ 47
HUMAN DIMENSIONS & RISK COMMUNICATIONS ................................................................................. 48 Integrating demographic and physiological parameters in NRDA .................................................. 48 Social disruption from oil spills and spill response: Characterizing effects, vulnerabilities, and the
adequacy of existing data to inform decision-making ...................................................................... 49 MECHANICAL RECOVERY & TREATMENT ............................................................................................ 51
Investigation of the Ability to Effectively Recover Oil Following Dispersant Application ................ 51 NATURAL RESOURCE INJURY ASSESSMENT & RESTORATION ............................................................... 52
Ecology and Economics of Restoration Scaling .............................................................................. 52 Establishing Performance Metrics for Oil Spill Response, Recovery and Restoration ...................... 52 Monetary Values and Restoration Equivalents for Lost Recreational Services on the Gulf Coast of Texas Due to Oil Spills and Other Environmental Disruptions........................................................ 54 Developing a Method for Estimating Injury and Risk to a Major NOAA Trust Resource (Finfish) due
to Persistent Bioaccumulative chemicals: Mercury......................................................................... 55 Using Benefit Transfer to Evaluate the Effectiveness of Restoration Projects .................................. 56
OIL TOXICITY & EFFECT ..................................................................................................................... 57 A Knowledge-Based Reasoning for the Interpretation of PAH Data ................................................ 57 Utility of Meiobenthos for Risk Assessment of Low-Level Crude Oil WSFs: Rapid Copepod-Based
Approaches for Evaluating Reproductive and Population-level Toxicity ......................................... 59 The relationship between acute and population level effects of exposure to dispersed oil, and the
influence of exposure conditions using multiple life history stages of an estuarine copepod,
Eurytemora affinis, as model planktonic organisms. ....................................................................... 60 Acute and Chronic Effects of Crude Oil and Dispersed Oil on Chinook Salmon Smolts
(Oncorhynchus tshawytscha) ......................................................................................................... 61 Studies Using an Estuarine Turtle (the Diamondback Terrapin) to Assess the Potential Longterm
Effects of Oiling of Nests during Early Embryonic Development..................................................... 61 Survival time models quantitatively predict lethal effects of pulsed, short- and long-term exposure to water-soluble oil spill fractions ...................................................................................................... 63 Impacts of Low Level Residual Oils on Toxicity Assessments of Oil Spills ....................................... 63 Guidance for Dispersant Decision Making: Potential for Impacts on Aquatic Biota ........................ 64
OUTREACH & TRAINING TOOLS .......................................................................................................... 66
NRT Science & Technology Committee Report 2008 iii
Tools for Preparedness .................................................................................................................. 66 REMOTE SENSING & AERIAL OBSERVATION ........................................................................................ 67
Detection of Oil on and Under Ice - Phase 3 .................................................................................. 67 Development of a Portable Multispectral Aerial Sensor for Real-time Oil Spill Thickness Mapping in Coastal and Offshore Waters ......................................................................................................... 69 Field Verification of SINAP Oil Spill Fate and Transport Modeling and Linking CODAR Observation
Systems Data with SINAP Predictions ............................................................................................ 70 Delivery and Quality Assurance of Short-Term Trajectory Forecasts from HF Radar Observations 72
SHORELINE ASSESSMENT .................................................................................................................... 73 A System for Integrated SCAT Data Collection and Management: .................................................. 73 eSCAT, SCATdb, and Photologger ................................................................................................. 73
SUBMERGED, SUNKEN & HEAVY OILS ................................................................................................. 74 Recovery of Heavy Oil ................................................................................................................... 74 Development of a Predictive Bayesian Data-Derived Multi-Modal Gaussian Maximum-Likelihood
Model of Sunken Oil Mass ............................................................................................................. 75 Investigation of Physical and Chemical Causes of Heavy Oil Submergence .................................... 76
APPENDIX B: FUNDING OPPORTUNITIES AS OF DECEMBER 2007 ......................................... 1
PROJECTS FUNDED BY THE COASTAL RESPONSE RESEARCH CENTER (CRRC) BASED ON 2007 RFPS ....... 1
APPENDIX C: SCHEDULED 2008 RESEARCH WORKSHOPS ...................................................... 1
APPENDIX D: SCHEDULED 2008 CONFERENCES ....................................................................... 1
APPENDIX E: SCIENCE & TECHNOLOGY COMMITTEE CHARTER........................................ 1
APPENDIX F: SCIENCE & TECHNOLOGY COMMITTEE 2008 WORK PLAN ........................... 1
S&T Committee’s Annual Report to the NRT .................................................................................... 1 Response Research Clearinghouse - Design & Feasibility Study ...................................................... 1 “Selection Guide for Oil Spill Applied Technologies” Field Test Report ........................................... 2 Selection Guide Review & Update ................................................................................................... 3
Introduction
This report covers the period from January 2008 to December 2008. In an attempt to
better agree on our shared mission, our relationship to the National Response Team
(NRT) and our path forward, the Committee continues to follow its charter and an annual
work plan (see Appendixes F and G). As the Committee’s membership is strictly
voluntary and is an adjunct to members’ official duties, these tools have helped focus the
energies of the Committee and assist in setting attainable objectives in light of time and
budget constraints.
This core mission, in the opinion of the Committee, has been overlooked in past and it is
the Committee’s desire to rectify this through annual reporting to the NRT and related
projects (see: Response Research Clearinghouse and Small Science Protocols Database).
In addition, the S&T Committee hopes to increase its membership with international
NRT Science & Technology Committee Report 2008 Page 2
partners (e.g.: Environment Canada, SINTEF, CEDRE), if only on an association basis.
By expanding our reach, we hope to increase the general understanding of response-
related research and development through the industry.
This 2008 Annual Report to the NRT will serve to keep the NRT and its constituent
teams, the 13 Regional Response Teams, informed as to the state of federal research and
development in the field of oil and hazardous substance response. Note that several
sections, most importantly, “Recommendations for Future Research” are incomplete in
this report. Unfortunately, this has fallen casualty to time constraints. Our foremost goal
was to develop a format for the report and inventory on-going research and development.
Subsequent Science & Technology Committee Annual Reports will examine
redundancies and gaps in federal research by means of a subcommittee or review board.
We believe that a critical examination of research and development activities will serve
to better focus scarce research funds and improve research design.
National Response Team
Science & Technology Committee
Stephen Lehmann, Chair
Lisa DiPinto, Alternate Cha
NRT Science & Technology Committee Report 2008 Page 1
2008 Science & Technology Committee
NOAA/Office of Response & Restoration
o Steve Lehmann (chair)
o Lisa DiPinto (alternate chair)
US EPA
o Leigh Dehaven
o Nick Nichols
o Al Venosa
US Coast Guard
o Karin Messenger (Headquarters)
o Kurt Hansen (R&D Center)
o Kelly Dietrich
Minerals Management Services
o Joe Mullin
Department of Labor
o John Koerner (OSHA)
Centers for Disease Control and Prevention
o Mike Allred
Department of Energy
o Jim Powers
Department of Homeland Security
o Tom Smith (FEMA)
Department of Defense (US Navy)
Contract Support
o Sara Walker (SRA)
Ex Officio Members
CRRC
o Amy Merten (co-director for CRRC)
API
o Marc Hodges
NRT Science & Technology Committee Report 2008 Page 2
Oil Spill Research and Development Organizations
RESEARCH & DEVELOPMENT CENTER, US COAST GUARD
The Center is the Coast Guard's sole facility for performing research, development,
test and evaluation in support of the Coast Guard's major missions.
http://www.rdc.uscg.gov/
OIL SPILL RESPONSE RESEARCH, MINERALS MANAGEMENT
SERVICE
The Minerals Management Service (MMS) is the principal United States federal
agency that through the Oil Spill Response Research (OSRR) Program, funds oil spill
response research. For more than 25 years, MMS has maintained a comprehensive,
long-term research program to improve oil spill response technologies. The major
focus of the program is to improve the knowledge and technologies used for the
detection, containment and cleanup of oil spills that may occur on the U. S. Outer
Continental Shelf.
http://www.mms.gov/taroilspills/
NATIONAL RISK MANAGEMENT RESEARCH LABORATORY, US
EPA
The National Risk Management Research Laboratory (NRMRL) is responsible for
providing credible research and technology information needed to advance the goals
of the United States Environmental Protection Agency (EPA) in improving public
health and the environment. It plans, implements, and manages research,
development, and demonstration programs to provide an authoritative, defensive
engineering basis in support of the policies, programs, and regulations of the EPA
with respect to drinking water, wastewater, pesticides, toxic substances, solid and
hazardous wastes, oil and chemical spills, and Superfund-related activities. The lab’s
Strategic Plan is one of the products of that research and provides a vital
communication link between the researcher and the user community.
http://ciord1nd/NRMRL/Intranet/webfiles.nsf/Files/NRMRLStratPlan2006.pdf/
$file/NRMRLStratPlan2006.pdf
COASTAL RESPONSE RESEARCH CENTER, NOAA/UNH
The Coastal Response Research Center was established as a partnership between the
National Oceanic Atmospheric Administration (NOAA), through the Office of
Response and Restoration (OR&R), and the University of New Hampshire (UNH) in
2004. The Center is administered by and located at the UNH campus in Durham, NH.
NRT Science & Technology Committee Report 2008 Page 3
This partnership stimulates innovation in spill preparedness, response, assessment,
and implementation of optimum spill recovery strategies. The primary purpose of the
Center is to bring together the resources of a research-oriented university and the field
expertise of OR&R to conduct and oversee basic and applied research, conduct
outreach, and encourage strategic partnerships in spill response, assessment and
restoration.
The Center involves individuals and institutions, public and private, at local, regional,
national and international levels in identifying needs, evaluating and demonstrating
promising technologies, and fostering their use as part of new, integrative approaches
to response and restoration.
http://www.crrc.unh.edu/
OFFICE OF RESPONSE & RESTORATION, NOAA
NOAA’s Office of Response and Restoration (OR&R) protects coastal and marine
resources, mitigates threats, reduces harm, and restores ecological function. The
Office provides comprehensive solutions to environmental hazards caused by oil,
chemicals, and marine debris.
http://response.restoration.noaa.gov/
Oil Spill Response Research, Minerals Management Service
The Minerals Management Service (MMS) is the principal United States federal agency
that through the Oil Spill Response Research (OSRR) Program, funds oil spill response
research. For more than 25 years, MMS has maintained a comprehensive, long-term
research program to improve oil spill response technologies. The major focus of the
program is to improve the knowledge and technologies used for the detection,
containment and cleanup of oil spills that may occur on the U. S. Outer Continental Shelf.
Current OSRR projects cover a wide spectrum of oil spill response issues and include
laboratory, meso-scale and full-scale field experiments. Major topic areas include:
Remote sensing and detection
Physical and chemical properties of crude oil and oil products
Mechanical containment and recovery
Chemical treating agents and dispersants
In situ burning
Deepwater operations
The MMS operates Ohmsett – The National Oil Spill Response Test Facility. Ohmsett is
a unique oil spill response research test facility located at the U.S. Naval Weapons
Station Earle, Leonardo, New Jersey (www.ohmsett.com). Ohmsett plays an essential
role in developing the most effective response technologies, as well as preparing
responders with the most realistic training available before an actual spill. The facility
directly supports the MMS goal of ensuring that the best and safest oil spill detection,
NRT Science & Technology Committee Report 2008 Page 4
containment and removal technologies are available to protect the United States coastal
and oceanic environments.
Ohmsett – The National Oil Spill Response Test Facility
Ohmsett (an acronym for Oil and Hazardous Materials Simulated Environmental Test
Tank), is the only facility in the world that allows for full-scale oil spill response testing,
training and research can be conducted with a variety of oils in a marine environment
under controlled conditions.
The heart of the facility is the large outdoor, above ground concrete test tank which
measures 203 meters (667 feet) long (the approximate length of two football fields) by 20
meters (65 feet) wide, by 3.3 m (11 feet) deep. It is filled led with 9.84 million liters (2.6
million gallons) of crystal clear salt water, and is maintained at oceanic salinity (35ppt.),
through the addition of salt. Water clarity is maintained by the filtration and chlorinating
systems in order to permit the use of a sophisticated underwater photography and video
imaging system during testing. Spanning the tank are three bridges that move back and
forth along the length of the tank on rails. The main bridge moves along the tank towing
full-size spill response equipment through the water to simulate actual towing at sea or
deployment in current. The towing bridge is capable of exerting a force of 151
kilonewtons (34,000 pounds) while towing equipment at speeds up to 3.3 meters/sec (6.5
knots). The bridge includes an oil distribution system that allows test fluids to be
deposited on the water in front of equipment being tested, to simulate a spill at sea. In
this way, reproducible thicknesses and volumes of oil can be achieved for multiple test
runs.
Conditions simulating ocean wave conditions are created with a wave generating system
and a wave dampening artificial beach. Waves up to one meter (3 feet) in height as well
as a simulated harbor chop can be generated. Tests can be viewed from travelling
bridges, the control tower, or underwater viewing windows on the side of the tank. The
data collection and video systems record test results in real-time both above and below
the water’s surface. The facility also has a meteorological station for continuous weather
measurements, a complete industrial shop and welding area for special fabrication
requirements and a newly constructed and fully equipped chemistry laboratory.
Ohmsett is a government owned, contractor operated facility; and is available for use by
state, federal, and foreign government agencies, industry and academia. The Ohmsett
facility represents a necessary intermediate step between small scale "laboratory testing"
and open water testing of equipment. Without Ohmsett, the testing and evaluation of
equipment, systems and methodologies as well as responder training would have to be
conducted during actual oil spills where conditions cannot be repeated and would
interfere with response operations.
In the past, Ohmsett was used almost exclusively to test and evaluate oil spill skimmers
and containment booms. However, new types of research are being conducted at
Ohmsett to increase facility utilization.
NRT Science & Technology Committee Report 2008 Page 5
MMS has upgraded the testing capabilities at Ohmsett to provide a controlled
environment for cold water testing and training (with or without ice). The facility
is now able to simulate realistic broken ice conditions. These upgrades enable the
Ohmsett facility to remain open year round offering cold water testing and
training during the winter months.
We have the ability to test and evaluate fire resistant containment booms using an
air-injected propane burner system that realistically simulates in situ burning at
sea.
Ohmsett facility is rapidly becoming a world leader in dispersant effectiveness
testing through the design and development of a calibrated, referenced and
realistic test protocol and subsequent testing under cold and temperate conditions
using fresh and weathered crude and fuel oils.
The Ohmsett facility allows for testing and evaluation of remote sensing
instruments under a wide range of conditions. Sensors can be mounted on the
Ohmsett Bridge or on the tower above the tank. The tank is also large enough
that aircraft and helicopters can fly over a test oil slick to evaluate sensor
performance.
The facility has recently developed the capability to conduct sunken and
submerged oil testing.
Ohmsett is also the premier training site for spill response personnel from state
and federal government agencies, private industry and foreign countries.
The Ohmsett facility is developing the capability to conduct independent and
objective performance testing of emerging marine renewable energy devices. The
aim is to provide as realistic conditions in the model scale as possible including
realistic parameters for wave heights, wave periods, directional spreading water
depth etc. The program will include design and survival testing.
Results from Ohmsett testing are used by local, state and federal regional response teams
and regulators to make scientific decisions on the use of oil spill response tools in their
jurisdictions. Funds to operate Ohmsett are appropriated from the Oil Spill Liability
Trust Fund (OSLTF) which was established under the Oil Pollution Act of 1990 (OPA-
90).
Appendix A
NRT Science & Technology Committee Report 2008 A-1
Appendix A: Research Descriptions and Abstracts
ALTERNATIVE TECHNOLOGIES
Subject Mitigating Oil Spills from Offshore Oil and Gas Activities by Enhancement of Oil-
Mineral Aggregate Formation Principal Investigator Dr. Ken Lee, Department of Fisheries and Oceans – Center for Offshore Oil and Gas Environmental
Research (COOGER).
Contracting Agency Minerals Management Service
Estimated Completion April 30, 2009
Description or
Abstract
To assess the feasibility of a marine oil spill countermeasure strategy based on the stimulation of oil-
mineral aggregate (OMA) formation. Experiments will be conducted on both laboratory and wave tank
systems under controlled conditions to evaluate its potential effectiveness for the treatment of oil spills
from ships, facilities or pipelines. Conceptual mathematical models will be developed from the data to
identify the fundamental processes affecting operational effectiveness as a means to provide guidance
for field operations. http://www.mms.gov/tarprojects/585.htm. This project is co-funded with the
Department of Fisheries and Oceans – Center for Offshore Oil and Gas Environmental Research
(COOGER).
Progress The test oils and minerals have been selected for this project. The test plan and test matrix for
laboratory testing and wave tank testing has been developed and wave tank testing has commenced.
The period of performance for this research contract has been extended until April 2009. Laboratory
experiments were conducted with three crude oils (ANS, MESA and Heidrun) under a variety of
different treatment conditions. The effects of different mineral fines and absorbents (Kaolin,
Diatomite, Fly Ash, Graphite, Modified Kaolin #1, Modified Kaolin #2, and Miracle Sorb NE) on the
formation of OMA. Wave tank studies will be conducted on the formation of OMA.
Reports
Key Word Oil-Mineral Aggregate
Subject Effects of Dispersants on Oil-SPM Aggregation and Fate in US Coastal Waters Principal Investigator Ali Khelifa (Environment Canada)
Appendix A
NRT Science & Technology Committee Report 2008 A-2
Contracting Agency UNH/NOAA: Coastal Response Research Center (CRRC)
Estimated Completion Completed report available on website www.crrc.unh.edu
Description or
Abstract
During marine oil spills, physically-dispersed oil droplets aggregate readily with suspended particulate
matter (SPM) such as clay minerals or organic matters to form oil-SPM aggregates (OSA). The
simplest aggregate consists of an oil droplet coated with micron-sized solid grains. This process
enhances dispersion of spilled oils by preventing the droplets from sticking to each other and reforming
oil slicks, and by enhancing their density to make them nearly neutrally buoyant. However, this is not
verified with chemically-dispersed oil. Chemical dispersants both reduce the size of oil droplets and
alter their surface chemical properties.
Thus, application of chemical dispersants in areas of high SPM concentrations is expected to have
significant effects on formation and fate of OSA and may be operationally problematic. As SPM are
typically 2 to 3 times denser than most crude oils, a major concern is that chemically-dispersed oil
droplets in the water column may aggregate with SPM and settle to the seafloor. Because of difficulties
in cleaning up sunken oil, transferring oil from the surface to the seafloor can result in long-term
environmental impacts to marine life. The dearth of process-based knowledge regarding OSA
formation with chemically-dispersed oil has left decision makers and end users lacking scientific
information on factors affecting this phenomenon.
We propose to study the OSA formation process in the laboratory using various natural
sediment/oil/dispersant mixtures so that factors controlling formation and fate of chemically-dispersed
oil droplets in coastal environments can be better understood and modeled. We also propose to
integrate the results into the MCOSA model (Monte Carlo model for OSA formation). As such, this
project will address at least four priority areas for spill research and development identified in the RFP
and in the newly released National Research Council report: Understanding Oil Spill Dispersants:
Efficacy and Effects (NRC 2005). These priority areas are: 1) Oil-Suspended Particle Matter
interactions, 2) Fate of chemically dispersed oil droplets in coastal environments with high suspended
solids, 3) Improvement of oil spill fate and transport models, and 4) Natural recovery of oiled aquatic
systems
Progress
Reports
Appendix A
NRT Science & Technology Committee Report 2008 A-3
Subject Use of Natural Oil Seeps for Evaluation of Dispersant Application and Monitoring
Techniques Principal Investigator James R. Payne, Ph.D. (Payne Environmental Consultants, Inc.) Alan A. Allen (Spiltec) William
Driskell, Ph.D. (Consultant)
Contracting Agency UNH/NOAA: Coastal Response Research Center (CRRC)
Estimated Completion Completed report available on website www.crrc.unh.edu
Description or
Abstract
Utilizing the natural seeps of Santa Barbara, California, this project has three primary objectives: 1) to
demonstrate the NEAT SWEEP boom and dispersant application technology under full-scale field
conditions as a follow-up to its successful OHMSETT trails, 2) to continuously monitor dispersant
effectiveness in real-time using NOAA SMART Protocols, and 3) for the first time, to calibrate the
SMART Protocol results with discrete large volume sampling of dissolved and dispersed oil-droplet
phase hydrocarbons. The resulting data can enhance oil spill response decisions, through improved and
validated monitoring methods and more efficient dispersant application techniques. This project is a
cooperative effort between two private consulting firms (PECI and Spiltec), the developers of the
NEAT SWEEP technology (Elastec American Marine), the Clean Seas Santa Barbara Oil-Spill
Response Cooperative, and So Cal Ship Services. Personnel from the UCSB Natural Hydrocarbon
Seep Project, the USCG, NOAA, CA Fish and Game OSPR, and other state and federal agencies have
also been invited to participate. As such, this project fulfills several of the main operating principles of
both CICEET and OR&R to "foster collaboration between academia, government, and the private
sector" through commitment to interdisciplinary work." All parties agree that this project represents an
advance in dispersant technology and a unique opportunity to intercalibrate monitoring procedures.
Progress
Reports
Key Word
Subject Dispersant Effectiveness as a Function of Energy Dissipation Rate and Particle Size
Distribution Principal Investigator Dr. Kenneth Lee (Bedford Institute of Oceanography)
Key Word
Appendix A
NRT Science & Technology Committee Report 2008 A-4
Contracting Agency UNH/NOAA: Coastal Response Research Center (CRRC)
Estimated Completion 2009
Description or
Abstract
A recent investigation by the National Research Council (NRC) of the National Academy of Science
concluded that in the area of dispersant effectiveness, the two most important factors that need to be
addressed and fully characterized in terms of efficacy are energy dissipation rate and particle size
distribution. In addition, the committee recommended more definitive toxicological studies to assess
the risk of detrimental ecological effects associated with chemical oil dispersant use. A wave tank
facility was designed and constructed last year at the Bedford Institute of Oceanography (BIO) in
collaboration between Fisheries and Oceans Canada (DFO) and the U.S. Environmental Protection
Agency (EPA) to specifically address these factors in controlled oil dispersion studies. This project
directly addresses the NRC recommendations in all three areas, namely, measuring dispersant
effectiveness at different sea state conditions (turbulence), measuring particle size distribution and
relating it to mass balance, and defining the induced toxic response to pelagic fish species in flow-
through operation. The wave tank at BIO is able to produce breaking waves at precise locations in the
tank reproducibly and is fully equipped to enable measurements of dispersed oil in the water column. A
laser in-situ scattering and transmissometry (LISST-100X) particle size analyzer will be used to
measure particle size distribution. In support of operational use of dispersants, the application of a
multiple simultaneous scattering and fluorescence sensor technology will be developed under this
program to provide real-time field data on the concentration and 3-dimensional profile of dispersed and
non-dispersed oils at sea. In addition, for ecological risk assessments, this study will provide much
needed insight on long-term chronic toxic threshold limits for oil dispersants on pelagic species of fish
under dilution regimes expected at sea. In summary, this project fulfills the multiple goals defined by
the CRRC as specified in its original RFP.
Progress
Reports
Key Word
Subject Dispersant SMART Protocol Update Principal Investigator Dr. Ken Trudel and Mr. Randy Belore, SL Ross Environmental Research Ltd.
Contracting Agency USCG Research and Development Center
Appendix A
NRT Science & Technology Committee Report 2008 A-5
Estimated Completion Completed 2008
Description or
Abstract
PROBLEM STATEMENT: Since the SMART (Special Monitoring of Applied Technologies)
protocol was developed, new sampling equipment has come on the market and OHMSETT data
indicates that some of the assumptions underlying the protocol may be incorrect. The SMART protocol
requires updating to better support dispersant usage decisions. As the CG is the FOSC (Federal On-
Scene Coordinator) for the Coastal Zone and as the National Strike Force (NSF) is the primary
resource for coordinating and employing the SMART protocol, the CG has a major stake in ensuring
the protocol is current, represents a defensible process, and can be efficiently implemented.
PROJECT OBJECTIVES: This project will evaluate existing data to determine the best
measures/indicators/processes by which to determine dispersant effectiveness. The primary data source
will be the results of dispersant testing at the Oil and Hazardous Materials Simulated Environmental
Test Tank (OHMSETT). Additionally, measurement devices as represented by those currently in use
at OHMSETT and other locations will be evaluated for suitability. Follow-on efforts will expand the
test and evaluation of sampling devices in real-world settings. The results from the data analysis and
equipment evaluation will then be used to modify the SMART protocol for oil dispersants
(instrumentation, procedures, data requirements) to better support decision-making.
Progress The initial efforts have been completed but additional funding was not available in FY08 to continue
the project. An interim report is being compiled that will contain a summary of the findings and
recommendations for future efforts if funds become available.
Reports Final report published on MMS Internet Site, September, 2008
Key Word
Subject Upgrade of SMART Dispersant Effectiveness Monitoring Protocol Principal Investigator Mr. Mark VanHaverbeke
Contracting Agency Minerals Management Service
Estimated Completion Completed 2008
Description or
Abstract
The objectives of this research project are three-fold:
1. To conduct an analysis of monitoring data (visual and instrumental monitoring) collected
during Ohmsett dispersant experiments completed between 2003 through 2007, for the
Appendix A
NRT Science & Technology Committee Report 2008 A-6
purposes of verifying the reliability of existing SMART effectiveness monitoring protocols and
recommending changes to improve monitoring methods;
2. Obtain input from end-users of the SMART protocol regarding past experience with the
protocol and instrumentation, as well as their needs for upgrading the effectiveness and
operational utility of the protocol; and
3. To review the commercially available off-the-shelf instruments that might fit the needs of the
USCG Strike Teams for monitoring the effectiveness of oil spill dispersant operations.
This project is co-funded with the U.S. Coast Guard Research and Development Center, Groton, CT.
http://www.mms.gov/tarprojects/598.htm.
Progress Technical Advisory Group (TAG) for the project was assembled and has representatives from the
USCG, EPA, MMS and NOAA. A two-day meeting was held September 19-20 at the U.S. EPA in
Edison NJ to conduct a Wants/Needs Analysis. More than 25 attendees from federal agencies and
private industry participated in the workshop. The workshop had two breakout focuses the Operations
Group and The Interpretation Group. The workshop laid the groundwork for updating the SMART
protocol for dispersants. Guidance was developed for the technical evaluation of the existing data and
the user wants/needs analysis will guide in the selection of instruments for evaluation. The workshop
was not intended to come up with the answers but to make sure that we understand the issues. The final
reports have been accepted by MMS. This project is complete.
Reports Update SMART Protocol for Monitoring Efficacy of Oil Spill Dispersant Operations: Proceedings of
the Stakeholders Workshop, S.L. Ross Environmental Research Ltd., Ottawa, ON Canada, 21 pp.,
August 1008.
Updating the SMART Dispersant Monitoring Protocol: Review of Commercial off the Shelf
Instruments, S.L. Ross Environmental Research Ltd., Ottawa, ON, Canada, 19 pp., August 2008.
Updating the SMART Dispersant Monitoring Protocol: Review of Ohmsett Results from 2001-2007,
S.L. Ross Environmental Research Ltd., Ottawa, ON, Canada, 45 pp., August 2008.
Key Word Dispersants, SMART Protocol, Ohmsett
Appendix A
NRT Science & Technology Committee Report 2008 A-7
Subject Employing Chemical Herders to Improve Oil Spill Response Operations Principal Investigator Mr. Ian Buist, SL Ross Environmental Research Ltd.
Contracting Agency Minerals Management Service
Estimated Completion February 27, 2009
Description or
Abstract
The objective of this research program is to extend the research on herders in pack ice conditions, in
open water and in salt marshes. This proposed project is a continuation of TAR Project 554 “Mid-Scale
Test Tank Research on Using Oil Herding Surfactants to Thicken Oil Slicks in Broken Ice”. There are
two tasks in this project. http://www.mms.gov/tarprojects/617.htm.
Task 1: Using Herders to Enhance Mechanical Recovery of Oil in Pack Ice
Field deployment tests of booms and skimmers in broken ice conditions in the Alaskan Beaufort Sea
highlighted the severe limitations of conventional containment and recovery equipment in even trace
ice (Bronson et al. 2002). The main problem is that booms, deployed to collect and concentrate oil for
effective skimming, also collect and concentrate ice pieces that quickly render the skimmers
ineffective. The research on using herding agents to thicken slicks for in situ burning has shown that
they can significantly contract and thicken oil among ice, without concentrating the surrounding ice.
This could be beneficial to mechanical recovery. In fact, as a skimmer removes oil from the center of a
herded slick, the action of the herding agent may cause the slick to continuously contract towards the
skimmer, eliminating the need to move the skimmer around to contact all the oil. However, it has been
observed that the active ingredient in herding agents (the surfactant) renders sorbent pads less
hydrophobic and their water retention increases considerably. This could be a significant detriment to
oleophilic skimmers such as drums, discs and rope mops whose recovery surfaces contact herding
agent. This should not be an issue with other skimmers types such as weirs and vacuums.
Experiments will be conducted in the laboratory and at Ohmsett – The National Oil Spill Response
Test facility to explore the capabilities and limitations of using herding agents to thicken oil in loose
pack ice for recovery by skimmers.
Task 2: Using Herders to Clear Oil Slicks in Salt Marshes
Appendix A
NRT Science & Technology Committee Report 2008 A-8
A parallel to the situation in pack ice exists in salt marsh environments: access for mechanical recovery
equipment is almost non-existent due to concerns over damaging the marsh substrate. This task will
involve preliminary laboratory experiments in small-scale simulated marshes to determine if chemical
herders might play a role in clearing spilled oil from the marsh.
Progress The experiments associated with Task 1: Using Herders to Enhance Mechanical Recovery of Oil in
Pack Ice will be conducted at Ohmsett in February 2009.
Small scale experiments associated with Task 2: Using Herders to Clear Oil Slicks in Salt Marshes
were conducted in Ottawa, ON the last two weeks of September 2008.
Reports
Key Word Chemical Herders, Mechanical Recovery, Ice
Subject Literature Review on Chemical Treating Agents in Fresh and Brackish Water Principal Investigator Mr. Randy Belore, SL Ross Environmental Research Ltd.
Contracting Agency Minerals Management Service
Estimated Completion December 31, 2009
Description or
Abstract
Chemical treating agents and chemical dispersants are designed to work effectively in salt water (35ppt
salinity). Near shore environments are seasonally influenced by significant freshwater outfalls (i.e.
Mississippi River) and northern marine areas where melting sea ice poses unique situations where the
use of dispersants might be used. The water in these areas will be fresh (0% salinity) and brackish (10-
15% salinity) and this may alter the effectiveness of chemical treating agents and dispersants and thus
alter the treating agents and dispersant use decision.
The three regional representatives on the MMS oil spill response research team identified an
information gap and requested a comprehensive review of the effectiveness of chemical treating
agents, including dispersants in fresh and brackish water. The information is required to assist the
regional offices in making science based regulatory decisions on the use of chemical treating agents
under these conditions. This research information would be useful to the to the oil spill planning and
response community and will assist those making dispersant use decisions in variable seasonal
Appendix A
NRT Science & Technology Committee Report 2008 A-9
conditions. http://www.mms.gov/tarprojects/635.htm.
Objective: The objective of this research project is to conduct a comprehensive literature review and
technical evaluation on the use of on chemical treating agents in fresh and brackish water.
Task 1. Literature Search and Document Retrieval Deliverable: Comprehensive literature review on the
use of on chemical treating agents in fresh and brackish water.
Task 2. Technical Assessment of Relevant Literature Deliverable: Technical assessment of the
literature acquired under Task 1.
Task 3. Final Technical Report Deliverable: Final Technical report.
Progress This project has recently been initiated.
Reports
Key Word Chemical Treating Agents, Fresh Water, Brackish Water
Subject Characteristics, Behavior and Response Effectiveness of Spilled Dielectric Insulating
Oil in the Marine Environment Principal Investigator Dr. Edward Overton, Louisiana State University
Contracting Agency Minerals Management Service
Estimated Completion December 31, 2009
Description or
Abstract
Planned wind projects on the U.S. Outer Continental Shelf could consist of wind turbine generators
connected to a centralized electrical service platform (ESP). The ESP could contain approximately
40,000 gallons of dielectric insulating oil and approximately 2,000 gallons of assorted oil-based fluids
(diesel fuel, lubricating oils, etc.) stored on site for facility maintenance. In addition, each wind
turbines could have several hundred gallons of lubricating fluid. The dielectric insulating fluid used in
the ESP is typically a mineral oil, but vegetable based oils (soybean oil) may also be used. Several
concerns have been raised by regulatory agency and environmental conservancy groups as to the
environmental effects of a possible oil spill due to accidental vessel collision or natural catastrophe.
Appendix A
NRT Science & Technology Committee Report 2008 A-10
The two main concerns addressed were probability of oiling and the minimum transit time of the oil to
area and resources at risk.
Numerous toxicological studies have been performed on mineral and vegetable-based oils over the last
decade. Mineral and vegetable-based oils display low direct toxicity because they do not contain the
water soluble and multi-ringed poly-nuclear aromatic hydrocarbons typically found in petroleum-based
oils. Due to their low toxicity and usage, little research has been performed on the response options
available to cleanup a spill of dielectric fluids on the marine environment. In the unlikely event of a
spill, how would the dielectric insulating oil be removed from our oceans and shorelines? How
persistent are these oils in the marine environment?
To provide a comprehensive analysis of the possible fate and effects of spilled dielectric insulating oil,
LSU and MMS will conduct a collaborative one (1) year project to provide a detailed literature review
and scientific information on the characteristics, weathering behavior, and window of opportunity for
using short-term response options for removal of spilled dielectric fluids in the marine environment.
The goals of this project will be achieved through a series of laboratory and field-scale studies
conducted at research facilities in Baton Rouge, Louisiana (LSU) and Leonardo, New Jersey
(Ohmsett). The results from this project will have a direct effect on the spill response policies and
decision-making of federal and state agencies when dealing with accidental releases of dielectric
insulating fluids in the marine environment. Results from this study will aide planning and
management personnel when designing coastal use permits for future offshore wind generation
systems. http://www.mms.gov/tarprojects/636.htm.
Objectives: The goals of this one (1) year scientific project are to provide detailed literature review and
produce valid data and results on the characteristics, weathering behavior, and window of opportunity
for using short-term response options for removal of spilled dielectric fluids in the marine environment.
The goals of the proposed project will be achieved through a series of six (6) tasks:
1. An intensive literature review of US and European sources
2. A series of laboratory flask studies to determine weathering characteristic, product
Appendix A
NRT Science & Technology Committee Report 2008 A-11
dispersibility, and accurate analytical methodology
3. A field study to accurately determine applicability of in-situ burning as a response tool
4. A laboratory flask study to measure the affects of long-term weathering and biodegradation on
dielectric insulating fluid in the marine environment
5. A series of field studies to accurately determine capabilities/limitations of conventional
response tools for removal of dielectric fluids from the marine environment
6. Preparation and submittal of a final draft and report to MMS
All tasks, except task No. 5, will be performed at LSU in Baton Rouge, Louisiana. Task No. 5 will be
completed at the Ohmsett facility in Leonardo, New Jersey.
Progress This project has recently been initiated.
Reports
Key Word Dielectric Fluids, Ohmsett
Subject Acute and Chronic Effects of Oil, Dispersant and Dispersed Oil to Symbiotic
Cnidarian Species Principal Investigator Carys Louise Mitchelmore, Ph.D. and Joel Eric Baker, Ph.D. (University of Maryland, Center for
Environmental Studies, Chesapeake Biological Laboratory)
Contracting Agency UNH/NOAA: Coastal Response Research Center (CRRC)
Estimated Completion 2009
Description or
Abstract
Cnidarian-algal symbioses exist as a sensitive balance between the two partners (cnidarian host and
symbiont algae). Chemical contaminants can disrupt this balance resulting in symbiosis breakdown and
loss of algae from the host cnidarian (e.g. coral and anemone species). This phenomenon known as
bleaching can result in death of the species and is particularly important in tropical regions where
corals form the trophic and structural foundation of the ecosystem. In temperate coastal communities
Appendix A
NRT Science & Technology Committee Report 2008 A-12
symbiotic anemones, such as Anthopleura elegantissima, are important members of the rocky intertidal
community and are also at risk for chemical contaminant driven bleaching events. It has been reported
that chronic, sub-lethal, possibly delayed reactions to oil exposure are more detrimental to coral reefs
compared with acute exposures. Therefore, for oil spill responders to decide upon appropriate response
strategies it is important that decisions are based on sound scientific data. There is little data regarding
the effects (particularly chronic, sub-lethal effects) of oil, dispersants and dispersed oil on these
sensitive cnidarian-algal species using realistic exposure regimes in combination with extensive
chemical characterization of the exposure media and bioaccumulated fractions in these organisms. This
project will address this data gap by providing quantitative chemical analysis, bioaccumulation and
injury data in representative temperate and tropical symbiotic cnidarians using realistic short-term (8
hour) acute laboratory exposures followed with a recovery period for up to one month to assess
delayed effects. Cnidarians will be exposed to various dilutions of wateraccommodated fractions
(WAF) and chemically-enhanced WAF (CEWAF) of oil using standard (CROSERF) techniques. The
possibility of enhanced toxicity via the physical coating of oil droplets on these organisms will be
assessed by using filtered/non-filtered WAF and CEWAF preparations. Extensive chemical analysis on
test waters (before and after exposures) and cnidarian tissues will be carried out by quantifying 53
PAHs and TPH. Injury will be determined using a multi-tired approach employing an array of metrics
from acute endpoints (e.g. mortality) to sub-organismal biomarkers from the molecular through
behavioral levels. By linking measured exposure levels to a series of endpoints over different time
scales, this study will support predictive models and will aid in the decision-making on dispersant use
in areas with coral reefs and in temperate rocky intertidal zones.
Progress
Reports
Key Word
Subject Dispersant Effectiveness as a Function of Energy Dissipation Rate and Particle Size
Distribution Principal Investigator Dr. Kenneth Lee (Bedford Institute of Oceanography)
Dr. Michel C. Boufadel, Temple University
Contracting Agency U.S. EPA, NRMRL-Cincinnati
Appendix A
NRT Science & Technology Committee Report 2008 A-13
Estimated Completion 2010
Description or
Abstract
The overall goal of this research is to conduct scientific studies addressing the following objectives: (1)
to quantify the natural rates of dispersion for multiple crude oils over a range of sea states (wave
energies); (2) to quantify the effectiveness of multiple representative oil dispersant formulations on
different types of reference crude oils; (3) to define the sea states (wave energies) over which current
commercial dispersant formulations are most effective by quantifying the degree of dispersion
expected under varying wave energies; and (4) to conduct toxicological analyses of exposed organisms
to determine if dispersed oil provides a toxic exposure to the test species. All of these studies will be
done under both batch and continuous flow conditions to accommodate sea currents that further dilute
the dispersed oil over time. To achieve the stated objectives, pilot-scale wave studies will be conducted
in a fabricated wave tank that will simulate different wave conditions including periodic breaking
waves amid regular, non-breaking waves. The wave tank measures 32 m long, 0.6 m wide, and 2.0 m
deep. The tank is equipped with a flap-type wavemaker that generates waves with periods varying from
about 0.5 to 3 seconds.
Progress
Reports
Key Word Dispersants, energy dissipation rate, dispersion effectiveness, wave tanks
Subject Dispersion of Crude Oil and Petroleum Products in Freshwater Principal Investigator Dr. Brian A. Wrenn
Washington University, St. Louis
Contracting Agency U.S. EPA, NRMRL-Cincinnati
Estimated Completion 2007
Description or
Abstract
Dispersants are not used to treat oil spills in freshwater in the U.S. This is partly due to the absence of
dispersants that are effective in freshwater on the NCP Product Schedule and partly due to the
perception that dispersion of oil in freshwater would cause unacceptable harm to valuable resources
(e.g., public water supplies, endangered species). In addition, there appears to be a perception that
dispersants cannot work in freshwater, but this may be due (at least in part) to attempts to use
dispersants that were optimized for use in seawater. At least six commercial dispersants have been
approved for freshwater use in France. So, it may be possible to optimize dispersant formulations to
Appendix A
NRT Science & Technology Committee Report 2008 A-14
promote effectiveness in freshwater. The environmental consequences of oil-spill dispersion will be
determined in part by the dilution potential of the affected water body and partly by the long-term fate
of the dispersed oil (e.g., stability of the dispersed oil droplets, biodegradation rate, and tendency to
interact with sediments and other surfaces). Since several important water bodies (e.g., the Mississippi
River, the Great Lakes) have sufficient dilution potential to accommodate dispersion of relatively large
oil spills, a blanket prohibition against the use of dispersants in freshwater may be ill advised. The
objective of this research is to investigate the relationship between dispersant composition and
effectiveness of dispersion of fresh and weathered crude oil in freshwater. The effectiveness of several
commercial dispersants that are purported to be effective in freshwater will be evaluated and compared
to mixtures of surfactants with known composition.
Progress
Reports
Key Word Dispersants, freshwater
Subject Development of a Protocol for Testing the Efficacy of Surface Washing Agents in
Removing Oil Contaminating the Surfaces of Shorelines Principal Investigator Dr. Albert D. Venosa
U.S. EPA, NRMRL-Cincinnati
Contracting Agency EPA, NRMRL-Cincinnati
Estimated Completion 2008
Description or
Abstract
NRMRL-Cincinnati is conducting research to develop a testing protocol to evaluate the effectiveness
of surface washing agents (SWAs) in the laboratory. The purpose of the research is to determine the
contribution of several variables on the performance of SWAs to remove crude oil adhered to surfaces
such as sand and/or gravel. Variables being considered include substrate type (sand and gravel), SWA
concentration, SWA:oil ratio (SOR), contact time between the SWA and the oil, rotational speed of the
mixing apparatus, and mixing time. Fixed variables include substrate moisture, drain time, oil volume,
oil and SWA application pattern, weathering time, seawater volume, oil type, and temperature. The
experiments will be done to test which factors are the most important affecting oil recovery in the
presence of surface-washing agents.
Appendix A
NRT Science & Technology Committee Report 2008 A-15
Progress
Reports
Key Word Surface washing agents, protocols
Subject Aerobic Biodegradability and Toxicity of Non-Petroleum Oils Principal Investigator Makram T. Suidan, Pegasus Environmental Services, Inc.
Contracting Agency U.S. EPA, NRMRL-Cincinnati
Estimated Completion 2010
Description or
Abstract
The overall objective of this project is to quantify the oxygen depletion and aqueous toxicity in oil-
impacted water columns that are poorly, moderately, and fully mixed because depletion of oxygen in
such water columns and release of toxic intermediates can lead to severe toxic impacts on the receiving
water body. This evaluation will be performed on canola oil with and without the presence of butylated
hydroxytoluene (BHT), the most commonly used antioxidant in the vegetable oil industry. Future
research beyond completion of the canola oil study will take place for other types of vegetable oils
and/or animal fats.
Progress
Reports
Key Word Vegetable oil, aerobic biodegradation
Subject Effect of Particle Size, Oil Contamination, and Water Table Level on the
Effectiveness of Sorbents in Wicking Oil from the Subsurface Principal Investigator Dr. Makram T. Suidan
Pegasus Environmental Services, Inc.
Contracting Agency U.S. EPA, NRMRL-Cincinnati
Estimated Completion 2008
Description or
Abstract
This project emanated directly from another project conducted in 2000-2001 entitled “Ecosystem
Restoration of Oil-Contaminated Coastal Salt Marshes: Field Study”. In that study, we found that if oil
has penetrated into the anaerobic zone of a saturated wetland or salt marsh, bioremediation is inhibited
Appendix A
NRT Science & Technology Committee Report 2008 A-16
no matter how much fertilizer one adds for biostimulation. This is because petroleum hydrocarbons are
best degraded under aerobic conditions. Tilling was attempted in the aforementioned project to aerate
the rhizosphere, but this caused more damage than the original oil spill. Rhizosphere root systems were
disrupted, preventing recovery of the contaminated vegetation. Since it is clear that oxygen cannot be
delivered to the subsurface harmlessly, the next question is, can the oil be brought to the surface where
aerobic conditions will allow normal biodegradation to take place? Various types of sorbents are being
investigated to determine if oil in the wetland subsurface can be wicked to the surface where aerobic
biodegradation can take place.
Progress
Reports
Key Word Sorbents, wicking, wetlands
Subject Anaerobic Biodegradability and Toxicity of Non-Petroleum Oils Principal Investigator Dr. Brian A. Wrenn
Washington University, St. Louis
Dr. Makram T. Suidan
Pegasus Environmental Systems, Inc.
Dr. Kenneth Lee
Fisheries and Oceans Canada
Contracting Agency U.S. EPA, NRMRL-Cincinnati
Estimated Completion 2010
Description or
Abstract
Because the most damaging effects of vegetable oil spills occur while the oil is floating on the water
surface, rapid response is critical to minimizing the harmful effects of vegetable oil spills.
Conventional oil-spill response techniques, such as booming and skimming operations, are used for
vegetable oil spills, but these procedures are labor intensive, expensive, and may require substantial
time to mobilize a response. Previous research investigated the feasibility of an alternative spill
response that is expected to be faster, less expensive, and easier to implement than traditional
technologies. The proposed spill response alternative involves sedimentation of floating vegetable oil
by addition of a dense mineral, such as clay, that will interact with the oil to form negatively buoyant
oil-mineral aggregates (OMAs) that will settle out of the water column. The oil that is transported to
Appendix A
NRT Science & Technology Committee Report 2008 A-17
the sediment compartment by this process is expected to be degraded to harmless products, especially
methane and carbon dioxide, by indigenous anaerobic microorganisms. Laboratory investigations of
this strategy have been completed and were successful. The next step is to design field experiments for
testing the strategy under real world conditions. The Canadian Experimental Lakes Area (ELA) is
ideally suited to conduct such experimental spill studies. Work is planned for FY 08 and 09 to begin
research on field-testing this strategy in the ELA.
Progress
Reports
Key Word Vegetable oil, anaerobic biodegradation
Subject Optimization of Nutrient Application for Oil Bioremediation on Beaches Principal Investigator Dr. Michel C. Boufadel
Temple University
Contracting Agency U.S. EPA, NRMRL-Cincinnati
Estimated Completion 2007
Description or
Abstract
Biostimulation (addition of nitrogen and phosphorus to stimulate bacteria to degrade the contaminant)
is a viable technology for restoration of oil-contaminated shorelines. Biodegradation studies recently
completed by ORD in the lab and in the field have demonstrated that nitrogen concentrations ranging
from approximately 2 to 10 mg/L in the interstitial pore water are sufficient for near-maximum growth
of hydrocarbon-degrading microorganisms. The effectiveness of biostimulation depends on continuous
contact between the added nutrients and the oil within the contamination zone. Maximizing the
residence time of nutrients in this zone is the key to achieve rapid and cost-effective cleanup. Design of
effective nutrient delivery systems requires an understanding of the transport and persistence of water-
soluble nutrients through the contaminated matrix. From ORD-supported nutrient transport studies on
coastal beaches in the mid-1990s, we know that water flow through the porous matrix of a beach is
driven by a combination of four main factors: (1) wave action, (2) the presence of a saltwater wedge
below incoming freshwater flow from behind the beach, (3) tidal action, and (4) the density differences
between the nutrient solution and the ambient water. We also know from wetland/marsh studies in
1999-2001 that nutrient recycling occurs in these environments from accumulation of detrital matter
from decaying vegetation. The missing factor from these studies is guidance for spill responders on
Appendix A
NRT Science & Technology Committee Report 2008 A-18
how to select the optimum nutrient application strategy based on these interacting nutrient-transport
factors. This study will fill that gap and provide design nomographs to facilitate decisions on how best
to implement bioremediation on tidally inundated beaches.
Progress
Reports
Key Word Biostimulation, nutrient application, nomographs
Subject Biodegradability and Toxicity of Biodiesel Blends Principal Investigator
Contracting Agency U.S. EPA, NRMRL-Cincinnati
Estimated Completion 2010
Description or
Abstract
While there are great benefits to using biodiesel as a fuel, its environmental fate and effects need to be
evaluated and the risks associated with their use understood. There is a dearth of information on the
states and conditions biodiesel and its blends have in the environment, their fate, and their effects on
aquatic organisms. The current understanding of the fate and effects of biodiesel and its various blends
is inadequate to evaluate environmental risks from its use. Furthermore, unlike petroleum diesel,
biodiesel fuels are made from many sources, including soy oil, rapeseed/canola oil, reclaimed
restaurant grease, fish oil, and rendered animal fats, each having different chemical compositions. This
wide variability of biodiesel formulations may result in very different toxicological and environmental
fates depending on the feedstock. The objective of this work is to determine the biodegradability and
biodegradation kinetics of three different commonly used biodiesel blends (B0, B20, and B100,
corresponding to 100% petroleum diesel, 20% soybean oil fatty acid methyl esters and 80% petroleum
diesel, and 100% soybean oil fatty acid methyl esters, respectively). The second objective is to quantify
the toxicity of the water accommodated fraction of the three biodiesel blends as measured by the
Microtox assay, which uses the bioluminescent bacterium Vibrio fischeri as the test species.
Progress
Reports
Key Word
Appendix A
NRT Science & Technology Committee Report 2008 A-19
CHEMICAL ANALYSIS AND FINGERPRINTING
COLD WEATHER & OIL-IN-ICE RESEARCH
Subject Arctic Operations Research Principal Investigator Mr. Kurt Hansen
Contracting Agency USCG Research and Development Center (RDC)
Estimated Completion FY 2009
Description or
Abstract
PROBLEM STATEMENT: The CG currently has no equipment, aircraft, or vessels stationed north
of the Arctic Circle. As the ice cover recedes, more fishing, commercial, research and tourist vessels
are expected to transit this area. The CG must begin to plan on how all of its missions can be executed
in this environment. It is expected that oil spill response will be high on the priority list as multiple
companies push to begin drilling.
PROJECT OBJECTIVE: The goal for this RDC project is to become the CG’s main source for (a)
CG-specific, Arctic information, and (b) objectively-based analyses in support of the definition and
development of appropriate CG capabilities and CONOPS for Arctic operations. Progress This is primarily an internal CG effort and initial efforts started February, 2008 to identify sources of
information and data. A mission analysis has been started to identify the needs for CG missions in the
Arctic.
Reports
Key Word
Subject Oil-in-Ice: Transport, Fate, and Potential Exposure Principal Investigator Whitney Blanchard
(Coastal Response Research Center, University of New Hampshire and SINTEF
Appendix A
NRT Science & Technology Committee Report 2008 A-20
Marine Environmental Technology), Odd Gunnar Brakstad (SINTEF Marine Environmental
Technology), Hajo Eicken (Geophysical Institute, University of Alaska Fairbanks), Liv-Guri Faksness
(SINTEF Marine Environmental Technology), Per Johan Brandvik (SINTEF Marine Environmental
Technology), Øistein Johansen (SINTEF Marine Environmental Technology), Nancy E. Kinner
(Coastal Response Research Center, University of New Hampshire), Rainer Lohmann (Graduate
School of Oceanography, University of Rhode Island), Amy Merten (Coastal Response Research
Center, University of New Hampshire and National Oceanic and Atmospheric Administration), Scott
Pegau (Prince William Sound Oil Spill Recovery Institute), Chris Petrich
(Geophysical Institute,
University of Alaska Fairbanks), and Mark Reed (SINTEF Marine Environmental Technology)
Contracting Agency UNH/NOAA: Coastal Response Research Center (CRRC)
Estimated Completion 2010
Description or
Abstract
Oil spilled in the arctic marine environment can be rapidly frozen into the ice sheet. The oil will in this
way be to some extent preserved, in the sense that evaporation, dissolution, and degradation are
expected to be reduced. This implies that the oil will retain much of its potential toxicity upon release
from the ice, either via transport in brines channels and/or eventual breakup and melting of the ice
sheet. Being able to estimate the pathways, release rates, and chemical characteristics of the remaining
oil will provide the basis for eventual environmental risk and impact assessments. The purpose of this
project is to provide a basis and methodology for estimating routes and magnitudes of potential
environmental exposures and concentrations of oil components migrating through the ice regime as the
oil is subjected to a freezing-thawing cycle.
A transport/exposure laboratory study is suggested to determine how ice growth conditions affect the
transport and fate of entrapped oil in ice. Quantitative data on the partitioning of oil (dissolved,
particulate oil) components (bioavailable fractions) into brine inclusions and channels, and rates of
vertical transport, will be collected. Since biodegradation of petroleum hydrocarbons at subzero
temperatures has not yet been shown, it will be essential to determine if crude oil biodegradation takes
place in marine sea ice within a defined span of time and to what extent. If so, the contribution of
biodegradation to the depletion of hydrocarbons in comparison to other depletion processes will be
quantified.
The study directly addresses the need for exposure and injury assessment tools for oil spills in cold
climates. The use of passive samplers is a fast and cheap method to detect polycyclic aromatic
Appendix A
NRT Science & Technology Committee Report 2008 A-21
hydrocarbons (PAHs), the most toxic group of all the compounds present in oil. In this proposal, we
suggest advancing the use of two different passive samplers as a tool to detect PAHs from oil spills in
ice cores. The two types of passives samplers being considered are polyethylene (PE), and solid-phase
micro-extraction (SPME) fibers. They will be used to detect the transport and fate of oil-derived PAHs
in ice cores.
In a combination of laboratory and field studies, performance reference compounds will be included in
the polyethylene matrix to enable their use as kinetic samplers and shorten deployment time in the
field. In flow-through exposures using Narragansett Bay water, deployment will be undertaken to
verify the use of the passives samplers to reflect dissolved concentrations as either equilibrium or
kinetic samplers. Finally, in simulated oil spills in ice cores in the laboratory, dissolved concentrations
of oil components will be detected using the passive samplers. The developed passive samplers will
enable the oil spill community to deploy passive samplers to measure baseline conditions before a spill,
as kinetic samplers during a spill and during the recovery phase of the natural ecosystem.
The findings from the laboratory experiments will be used in the development of an oil-in-ice sub-
model. In contrast to most other recent and on-going work at the macro-scale, this project will start at
the micro- and meso-scale (roughly mm to cm and cm to m or greater, respectively), to build up an
understanding and a dynamic model from basic principles, to the maximum extent possible. Other
experimental and model development work at this scale will contribute to the technical basis for the
proposed model development.
The development of the numerical model associated with this project will integrate knowledge,
understanding, and data derived from other tasks within this project and from earlier work by other
investigators, into an internally consistent and relatively comprehensive numerical framework. The
goal is to produce a dynamic module focused on micro- and macro- physical scales, built up as much
as possible from first principles, to serve as a building block in an eventual large scale model of ice
dynamics. The available level of funding is insufficient to complete the modeling work, in addition to
all the necessary laboratory work. We therefore propose to produce a prototype model at the end of the
first year, and seek additional funding to complete the model calibration, testing and documentation
during the second year.
Appendix A
NRT Science & Technology Committee Report 2008 A-22
Progress
Reports
Key Word
Subject Research at Ohmsett on the Effectiveness of Chemical Dispersants on Alaskan Oils in
Cold Water Principal Investigator Mr. Randy Belore, S. L. Ross Environmental Research Ltd.
Contracting Agency Minerals Management Service
Estimated Completion 2007
Description or
Abstract
The U.S. Minerals Management Service (MMS) funded and conducted two series of large-scale
dispersant experiments in very cold water at Ohmsett – The National Oil Spill Response Test Facility,
located in Leonardo, New Jersey in February-March 2006 and January-March 2007. Alaska North
Slope, Endicott, Northstar and Pt. McIntyre crude oils and Corexit 9500 and Corexit 9527 dispersants
were used in the two test series. The crude oils were tested fresh, weathered by removal of light ends
using air sparging and weathered by placing the oils on water in both breaking wave and non-breaking
wave conditions.
In February-March 2006, a total of twenty-five large-scale DE experiments were successfully
completed at the Ohmsett facility. Ten control experiments (no dispersant) and fifteen Corexit 9527
dispersant application experiments were completed in the test program. The total quantity of crude oil
used in the 2006 test program was approximately 1,600 liters and between 65 and 80 liters of oil were
used in each experiment. In a few cases where a limited amount of oil was available, smaller volumes
were discharged. The estimated average oil thickness for the oil slicks was 1 to 4 mm depending on
the experiment being conducted. The total quantity of dispersant used in the 2006 test program was
approximately 150 liters and between 4 and 16 liters of dispersant (including overspray) was used in
each experiment.
In January-March 2007, a total of twenty-one large-scale DE experiments were successfully completed
at the Ohmsett facility. Nine control (no dispersant applied), ten Corexit 9500 dispersant applied
Appendix A
NRT Science & Technology Committee Report 2008 A-23
experiments and two Corexit 9527 dispersant applied experiments were completed in the test program.
Thirteen of the experiments were conducted between January 30 and February 6 and the remaining
eight experiments were completed between March 13 and March 15, 2007. The air temperature at the
end of the first week of testing dropped dramatically and the tank surface water froze. The ice was
broken up using wave action but a layer of frazil ice built up in the tank and the main test program had
to be suspended until the onset of warmer weather. One test (No.13) was completed in the frazil ice
conditions to investigate the use of dispersants in these conditions while the opportunity presented
itself.
The total quantity of oil used in the 2007 test program was approximately 1,560 liters and between 70
and 85 liters of oil were used in each experiment. The estimated average oil thickness for the slicks
was 1-2 mm depending on the experiment being conducted. The total quantity of dispersant used in
the 2007 test program was approximately 90 liters and between 7 and 12 liters of dispersant was used
in each experiment (including overspray).
Progress Results from the 2006 and 2007 Ohmsett test series demonstrated that both Corexit 9500 and Corexit
9527 dispersants were 85 to 99% effective in dispersing the fresh and weathered crude oils
tested. There were no significant differences found in the oil drop size distributions measured in the
dispersions generated by the two dispersants. The volume median diameters of the oil drop
distributions generated by these dispersants were less than 50 microns indicating that the majority of
the oil in these dispersions would persist in the water column and not rise to the surface in moderate
sea states. All of the experiments were videotaped from the observation tower located on the main
bridge. The video was edited to show the progression of the test from the beginning to the end.
The final reports from both test series have been accepted by MMS. This project is complete. There are
film clips embedded into both final reports.
Reports Report AA - Dispersant Effectiveness Testing in Cold Water on Four Alaskan Crude Oils. SL: Ross
Environmental Research and MAR, Inc., 59 pp. July 2006.
There are twenty-five (25) film clips associated with the final report AA that are available free of
charge on the MMS website.
Appendix A
NRT Science & Technology Committee Report 2008 A-24
Report AB - Corexit 9500 Dispersant Effectiveness Testing in Cold Water on Four Alaskan Crude
Oils. SL: Ross Environmental Research and MAR, Inc., 35 pp. May 2007. There are twenty-one (21)
film clips associated with the final report AB that are available free of charge on the MMS website.
http://www.mms.gov/tarprojects/568.htm
Key Word
Subject Oil Recovery with Novel Skimmer Surfaces under Cold Climate Conditions Principal Investigator Dr. Arturo Keller, Victoria Broje and Kristin Clark, University of California, Santa Barbara, Bren
School of Environmental Science and Management
Contracting Agency Minerals Management Service
Estimated Completion 2007
Description or
Abstract
The objective of this project is to perform a comprehensive analysis of the adhesion processes between
oil or ice-in-oil mixtures and various surface patterns and materials that are being used or proposed for
use in oil skimmers, under cold climate conditions. This knowledge will help develop mechanical
response equipment that can be efficiently used under these conditions. The work will include bench
scale studies in our laboratory as well as field testing.
Following the laboratory tests, we will select the materials and surface patterns that performed best
under cold climate conditions, and perform a full scale oil spill recovery test at the U.S Army Corps of
Engineers, Cold Regions Research and Engineering Laboratory, in Hanover, NH. This will provide
valuable information about the correlation between the laboratory tests and full scale experiments, as
well as demonstrate the potential of the proposed skimmer modifications under conditions similar to
response operations.
Progress Oil adhesion experiments to novel skimmer surfaces under cold climate conditions were conducted at
the University of California, Santa Barbara to examine surface geometry and materials tailored to
conditions present in cold climates. A series of full-scale oil spill recovery experiments were conducted
February 26-March 9, 2007 at the U.S. Army Corps of Engineers Cold Regions Research and
Engineering Laboratory (CRREL) in Lebanon, NH. The goal of the experiments is to provide actual
data as to the effects of oil adhesion on different drums on oil skimmers under varying conditions (oil
types, ice/no ice, drum rotation speed, etc.).
Appendix A
NRT Science & Technology Committee Report 2008 A-25
The final project report has been accepted by MMS. This project is complete.
Reports AA – Oil Recovery with Novel Skimmer Surfaces under Cold Climate Conditions, A. Keller, K. Clark,
Bren School of Environmental Science and Management, University of California, Santa Barbara, CA,
51 pp., August 1, 2007. http://www.mms.gov/tarprojects/573.htm
Key Word
Subject Cold Climate Research Principal Investigator Mr. Kurt Hansen (USCG Research and Development Center)
Contracting Agency USCG Research and Development Center
Estimated Completion FY 2009
Description or
Abstract
PROBLEM STATEMENT: Existing systems (CG and commercial) are inadequate to detect, track,
contain, recover or abate oil spills in most icing conditions.
PROJECT OBJECTIVE: Identify techniques to detect, track and remediate oil spills in ice in waters
of the United States, focusing on the Beaufort Sea (Alaska) and Southern Alaska. Evaluate equipment
in CG and commercial inventories, determine recovery limits and develop/recommend
modifications/additions to meet spill response needs. Develop CG or industry capability to detect and
remediate oil-in-ice.
BENEFITS: A set of internationally accepted procedures and equipment will be developed that can
contain and recovery oil-in-ice under the conditions expected, thus minimizing environmental damage.
Providing this capability would decrease the impact on the environment by providing better tools. This
is a low frequency scenario; therefore, commercial responders have no incentive to develop this
capability. The CG is in a unique position to develop this capability with national and international
partners.
TECHNICAL APPROACH: Evaluate current oil response techniques through workshops in Alaska
in October 2007.
MANAGEMENT APPROACH: Work with partners through contracts, Memorandum of
Understandings or MIPRs to conduct studies, workshops and tests. Leverage funding for mesoscale
and larger field tests.
Appendix A
NRT Science & Technology Committee Report 2008 A-26
Progress Planning was started
Reports
Key Word
COMMAND, CONTROL & COMMUNICATIONS
DISPERSANTS
Subject Development of a Training Package on the Use of Chemical Dispersants for Ohmsett -
The National Oil Spill Response Test Facility Principal
Investigator
Dr. Ken Trudel, SL Ross Environmental Research Ltd.
Contracting
Agency
Minerals Management Service
Estimated
Completion
February 27, 2009
Description or
Abstract
This research project will fill an existing gap in oil spill response in the United States by providing hands on
training in chemical dispersants for first responders, planners and government agencies by utilizing the
unique capabilities of Ohmsett - The National Oil Spill Response Test Facility. This project will develop a
chemical dispersant training course to be conducted at Ohmsett that includes practical hands-on experience
with handling, safety, application, monitoring, efficacy and recovery in breaking wave environments. The
Appendix A
NRT Science & Technology Committee Report 2008 A-27
contractor will develop training materials and exercises for conducting the class and will provide them to
MMS in digital and hard copy formats. http://www.mms.gov/tarprojects/613.htm.
Progress The course curriculum has been approved by the MMS. The PI is has submitted the final draft of the
teaching curriculum and teaching materials. MMS has provided suggested changes. The PI is developing the
final instructor guide and student handbooks.
Reports
Key Word Dispersants, Training, Ohmsett
Subject Chemical Dispersant Research at Ohmsett Principal
Investigator
Mr. Randy Belore and Dr. Ken Trudel, SL Ross Environmental Research Ltd., Dr. Alun Lewis, Alun Lewis
Consulting.
Contracting
Agency
Minerals Management Service
Estimated
Completion
Complete
Description or
Abstract
The objective of this research program is to continue research and development on the use of chemical
dispersants. The program contains three separate tasks. http://www.mms.gov/tarprojects/615.htm.
Task 1: Calm Seas Application and Dispersant Wash-Out
The Petroleum Environmental Research Forum (PERF) funded a research project conducted by SINTEF in
Norway and Cedre in France that has looked at the same issue of dispersant wash out but at laboratory
bench scale. The Oseberg crude oil used in the PERF study was shipped to Ohmsett and was used in the
2007 study (TAR Project 563). To date no comparison of the findings from these two studies has been
made. The first item to be addressed in Task 1 will be to complete such a comparison to determine what can
be learned from the different test methods and scales.
In the testing phase of Task 1 we will implement a similar test protocol to that used in the spring 2007
testing. Multiple test rings will be deployed across in the Ohmsett test tank so a range of slick thickness
Appendix A
NRT Science & Technology Committee Report 2008 A-28
and/or oil types can be monitored in one test sequence. Dispersant wash out rates will be monitored
throughout the test period by sampling the surface oil and testing dispersant effectiveness (DE) using a
bench-scale test such as the WSL rotating flask method, as was done successfully in the 2007 testing, as
well as by measuring the interfacial tension of the sampled oil with fresh sea-water. A two-week testing
program was conducted May 19-30, 2008 at Ohmsett to test oil thickness and oil type effects on dispersant
wash-out.
Task 2: Surface Wave Energy Characterization for the Ohmsett Test Tank
The objective of this project would be to measure the surface turbulence at Ohmsett under various wave
configurations and compare these energies to those encountered in the field at specific sea-states. There are
three basic mixing energies of primary significance in the dispersion process. These include the process that
mixes dispersant into the oil, the energy that breaks the treated oil into small droplets and the larger scale
energy that mixes the droplets of oil down into the water column. The proposed work will focus on the
quantification of the surface turbulence available to break the treated slick into a fine-drop, oil-in-water
dispersion. Because of the shallow depth of the Ohmsett tank the third mixing process cannot be fully
simulated at Ohmsett. The mixing of applied dispersant into the oil versus water is an important short-term
process but it is not the critical component except where viscous oils or emulsions are involved. A two-
week testing program was conducted August 18-29, 2008 at Ohmsett.
Task 3: Dispersant Effectiveness on Heavy California Oils
Dispersant effectiveness (DE) experiments were conducted on six viscous Californian Outer Continental
Shelf (OCS) crude oils in April of 2005 at Ohmsett to gather data on this subject. (TAR Project No. 514).
The crude oils tested with viscosities lower than 6500 cP were dispersible to a significant degree whereas
the oils with viscosities of 33,000 cP and greater were not. Oils with similar viscosities yielded similar DE
results suggesting that viscosity alone was a good measure of likely DE, at least in this test series.
Unfortunately oils with viscosities between 6500 and 33,000 cP were not available for testing during the
2005 study.
The objective of this project will be to obtain California OCS crude oils with viscosities between 6,500 and
Appendix A
NRT Science & Technology Committee Report 2008 A-29
25,000 cSt and conduct large-scale experiments at Ohmsett to determine the DE of dispersants in this
viscosity range to fill in the knowledge gap. A one-week testing program was conducted June 2-6, 2008 at
Ohmsett.
Progress Task 1. Calm Seas Application and Dispersant Wash-Out
A two-week testing program was successfully conducted May 19-30, 2008 at Ohmsett to test oil thickness
and oil type effects on dispersant wash-out. The test protocol used was similar to the used in the Spring
2007 calm seas test series. Multiple test rings were deployed across in the Ohmsett test tank so a range of
slick thickness and/or oil types could be monitored in one test sequence. Dispersant wash out rates were
monitored throughout the test period by sampling the surface oil and testing dispersant effectiveness using a
bench-scale test such as the WSL rotating flask method, as was done successfully in the 2007 testing, and
by measuring the interfacial tension of the sampled oil with fresh sea-water. The draft final report for this
Task is being developed.
Task 2. Surface Wave Energy Characterization for the Ohmsett Test Tank
A one-week testing program was successfully conducted August 18-22, 2008 at Ohmsett. The final report
for this task is being developed.
Task 3. Dispersant Effectiveness on Heavy California Oils
A one-week DE testing program was successfully conducted June 23-27, 2008 at Ohmsett. The U.S. Coast
Guard Atlantic Strike Team, EPA Emergency Response Team and Clean Islands Council participated in the
exercise as an operational training exercise for the SMART dispersant monitoring protocol. MMS also
conducted a visitor's day on June 25, 2008. Visitors observed dispersant effectiveness testing, saw the
dispersant test protocol in action and demonstrations of the SMART dispersant monitoring protocol, and
toured the Ohmsett facility. The final report for this task has been accepted by MMS.
Reports
Key Word Dispersants, Ohmsett
Appendix A
NRT Science & Technology Committee Report 2008 A-30
Subject Chemical Dispersant Research at Ohmsett: Phase 2 Principal
Investigator
Mr. Randy Belore and Dr. Ken Trudel, SL Ross Environmental Research Ltd.
Contracting
Agency
Minerals Management Service
Estimated
Completion
December 31, 2009
Description or
Abstract
There is a need for research information and data on the effectiveness of chemical dispersants to answer
questions and data gaps posed by MMS regional offices, regulators and decision makers. A review of oil
spill dispersants, their efficacy and effects, recently completed by the U.S. National Research Council (NRC
2005), recommended that research on chemical dispersants be conducted in several different areas. In FY-
2008, the MMS received a research proposal that identified a multi-year dispersant research program to
answer the questions and address the data gaps in the efficacy of dispersants identified in the NRC report.
There were seven distinct tasks or projects proposed in this two-year dispersant research programs. In FY-
2008, the MMS funded Tasks 1, 2 and 5. These three tasks were completed in TAR project 615.
http://www.mms.gov/tarprojects/615.htm.
In FY-2009, the MMS Oil Spill Response Research Team requested a technical and cost proposal update of
Task 4 Evaluation of Dispersant Effectiveness in Low-Dose, Repeat Applications and Task 6 Validation of
Small-Scale Laboratory Test Dispersant Effectiveness Ranking. The objective of this research program is to
continue research and development on the use of chemical dispersants. Two tasks will be addressed. The
period of performance would be one year. http://www.mms.gov/tarprojects/638.htm.
Task 4. Evaluation of Dispersant Effectiveness in Low-Dose, Repeat Applications
Conventional wisdom and usual practice for the application of dispersant to large oil spills is through large,
fixed-wing aircraft spraying. However, the spray from a single pass from such spray systems can treat a
slick of only about 0.15 mm thick at the normal design application ratio of one part dispersant to 20 parts of
oil. Thick oil patches accounting for 80 to 90 % of the total oil volume can easily be 10 to 100 times thicker
than this. The application rate of dispersant from an aircraft application hitting the thick oil could be in the
range of 1:200 to 1:2000 under such conditions. The question to be answered in this project is: Does
Appendix A
NRT Science & Technology Committee Report 2008 A-31
dispersant applied in very low doses (1:1000 to 1:200) disperse a small fraction of an otherwise dispersible
oil or is it simply ineffective until a minimum threshold concentration of dispersant in the oil is achieved,
possibly through repeated spray passes?
The answer to this question has significant ramifications with respect to operational decisions in dispersant
application on thick oil slicks. For example, if a test spray were completed on a thick oil slick and no
dispersion was observed the dispersant might be considered to be in-effective, whereas multiple applications
of the dispersant might be necessary to achieve a dosage sufficient to generate dispersion. This work will be
completed at two test scales. Initial work will be completed at a laboratory test tank scale to assess the effect
of low-dose application on a number of oils. Once trends have been determined in the laboratory testing will
be completed at Ohmsett to verify similar behavior at full-scale.
Task 4 involves three tasks.
1. Small Scale Tests
2. Large Scale Ohmsett testing
3. Data Analysis and Technical Report
Validation of Small-Scale Laboratory Test Dispersant Effectiveness Ranking
Bench scale dispersant effectiveness tests are routinely used around the world to rank the potential
effectiveness of a dispersant product on standard oils or to study the effect of oil and dispersant type and
environmental parameters on dispersant effectiveness. In the United States oils must achieve a measured
effectiveness of 45% or greater in the swirling flask to be placed on EPA’s NCP Product Schedule as an
approved dispersant. But, what do the effectiveness values recorded in these laboratory tests mean with
respect to likely effectiveness in the field and do the bench scale tests fairly evaluate dispersant products?
Attempts have been made to correlate the results of bench scale tests to one another with mixed success thus
suggesting that few, if any, of the tests are representative of real-world situations.
Very limited field data is available to allow the comparison of bench scale test results to field success and so
this has also not been adequately done. It is proposed that the Ohmsett test facility be used as a surrogate to
Appendix A
NRT Science & Technology Committee Report 2008 A-32
the field to provide “field” effectiveness estimates on a select number of oils for a select number of
dispersants. Bench-scale tests would be conducted using the same dispersant and oil combinations and the
results compared to establish if the bench-scale test results can be used to provide reasonable estimates of
field performance. The EPA Baffled Flask Test (BFT) and the WSL Laboratory test (WSL) will be the
bench-scale test methods used in the study. The BFT is being proposed as the new EPA standard and the
WSL test has been shown to be more representative of field.
Task 6 involves three tasks:
1. Large Scale Ohmsett Testing
2. Bench Scale DE Testing
Data Analysis and Technical Report
Progress This project has recently been initiated.
Reports
Key Word Dispersants, Ohmsett
FATE & BEHAVIOR MODELING & ANALYSIS
Subject Oil Spill Training and Response (STAR) Calculator Program Principal Investigator Mr. Dean Dale, Genwest Systems, Inc.
Contracting Agency Minerals Management Service
Estimated Completion May 31, 2009
Description or
Abstract
The purpose of this project is to improve the industry’s ability to respond to oil spills. Specifically, the
project will develop a software-based tool that can be used to guide in the selection and assessment of
response countermeasures during spill events and exercises. The objectives of this project are to
Appendix A
NRT Science & Technology Committee Report 2008 A-33
standardize the existing software packages; to enhance their utility, user-interface and output; and, to
integrate all three response options (mechanical, burning & dispersants) using improved algorithms for
their efficient use under a variety of spill scenarios. The project will standardize and unify the three
NOAA Spill Tools and combine them with weathering algorithms to better estimate oil
recovery/treatment during exercises and actual oil spill events. The STAR Calculator will be in the
public domain; all of the algorithms used will be documented and will be freely available with the
software.
This project will be conducted as a Joint Industry Project (JIP) with the American Petroleum Institute
(API) and Shell International Exploration and Production, Inc. (Shell) as the other two funding
partners.
Progress Project scoping, database research and the detailed specification development is complete. The oil
weathering algorithms are complete and in for peer review. Algorithms are being developed for Burn
Efficiency and Dispersant Efficiency.
Reports
Key Word Mechanical Recovery, Dispersants, In Situ Burning
Subject Validation of the Two Models Developed to Predict the Window of Opportunity for
Dispersant Use in the Gulf of Mexico Principal Investigator Dr. Ali Khelifa, Environment Canada
Contracting Agency Minerals Management Service
Estimated Completion December 31, 2009
Description or
Abstract
In a previous MMS-funded research project entitled: Identification of Window of Opportunity for
Chemical Dispersants on Gulf of Mexico Crude Oils http://www.mms.gov/tarprojects/595.htm, two
correlation models were developed to predict the window of opportunity (or time-window) for
successful chemical dispersant use in the Gulf of Mexico (GOM). The models consist of correlation
relationships established using best-fit correlation between readily available fresh oil properties and the
window of opportunity for successful chemical dispersant use estimated using data from GOM crude
oils and spill volumes of 1,000 and 10,000 barrels. The study showed that combination of Sulfur,
Appendix A
NRT Science & Technology Committee Report 2008 A-34
Saturate and Wax contents of the fresh oils correlated best with the time-window for dispersant use.
This project aims to validate and improve the two correlation models using a well know oil spill model
OILMAP, adding crude oils from outside the GOM for which physical and chemical properties are
available, introducing ten new crude oils from the GOM for which physical and chemical properties
will be measured in this study, considering existing data from large tank tests and field trials/spills, and
using data from new small tank tests. The project also aims to evaluate the sensitivity of the models to
water temperature, wind speed and the oil viscosity with the aim to include effects of these parameters
into the models. http://www.mms.gov/tarprojects/637.htm. Objectives: the goals of the one-year
research project are:
1. To validate the time-window predicted by SL Ross for the 24 crude oils selected from the
Environment Canada’s oil propriety database and using the SLROSM oil spill model.
2. To validate and to improve the two correlation models proposed by SL Ross using 24 or more
additional crude oils outside the GOM for whish physical and chemical properties are available in the
Environment Canada’s oil property database or provided by the MMS;
3. To validate and to improve the two correlations models using ten new crude oils from the GOM.
Physical and chemical properties of these new oils will be measure in this study;
4. To perform sensitivity analysis of the correlation models to show how the time-window varies with
temperature, wind speed, viscosity cutoff (threshold) and the spill volume;
5. To validate and to improve the correlation models using existing data from large tank tests and field
spills;
6. To validate and to improve the correlation models using new experimental data from small tank
tests. The new dispersion experiments will be conducted in this project.
7. Data Analysis and Final Report Preparation.
Appendix A
NRT Science & Technology Committee Report 2008 A-35
Progress This project has recently been initiated.
Reports
Key Word Oil Spill Modeling
Subject HAZMAT Spill Behavior and Trajectory Modeling Principal Investigator Mr. Kurt Hansen
Contracting Agency USCG Research and Development Center
Estimated Completion 3RD Quarter, FY2008
Description or
Abstract
PROBLEM STATEMENT: On-scene coordinators cannot quickly predict the real geographic extent
of hazards (e.g., explosion, fire, toxicity) in order to make appropriate decisions regarding hazardous
materials (HAZMAT) response. More recently, this is particularly important for classic warfare and
WMD agents where environmental models do not exist in the public domain.
PROJECT OBJECTIVE: Provide an enhanced CG standard model suite (CAMEO or equivalent),
able to handle more sophisticated spill scenarios, especially those caused by intentional hazardous
material spills. This enhanced model would include a broad range of HAZMAT and be able to handle
all types of environments. Training and supportability issues will also be considered.
Progress Work has been completed and the Internet Site has been launched. Final efforts are providing initial
training and working with CG-533 to incorporate future training.
Reports Chemical Response Tool at http://chemresponsetool.noaa.gov/
CAMEO at http://www.cameochemicals.noaa.gov/
Upgraded ALOHA Air Dispersion Model
Chemical Trajectory Analysis Planner (TAP) User Analysis
Key Word
Subject Improvements to the Work on Integration of NOAA's GNOME Model with CDOG
(Clarkson Deepwater Oil and Gas) Blowout Model Principal Investigator Poojitha D. Yapa, Ph.D. (Clarkson University - Dept. of Civil and Environmental Engineering)
Contracting Agency UNH/NOAA: Coastal Response Research Center (CRRC)
Estimated Completion Completed report available on website www.crrc.unh.edu
Description or This is a continuation of the previous project. The current work will incorporate the new version of
Appendix A
NRT Science & Technology Committee Report 2008 A-36
Abstract CDOG into GNOME. During the integration, improvements will be made to error messages and
modifications will be made to the file structure as identified during the previous version. A design
strategy will be developed to maintain backwards compatibility of CDOG to ensure that future CDOG
versions can maintain compatible I/O formats with present versions. This will ensure that investments
made to enhance CDOG can be incorporated into GNOME without major efforts. Sensitivity testing is
also planned for issues such as plume height and initial droplet size distribution.
Progress
Reports
Key Word
Subject Measurements and Modeling of Size Distributions, Settling and Dispersions Rates of
Oil Droplets in Turbulent Flows Principal Investigator Joseph Katz (Dept. of Mechanical Engineering, The Johns Hopkins University)
Contracting Agency UNH/NOAA: Coastal Response Research Center (CRRC)
Estimated Completion December 2008
Description or
Abstract
The objective of this proposal is to measure and parameterize the effects of turbulence and oil
properties on the mean settling velocity, dispersion (turbulent diffusion) rate, and characteristic size
distributions of oil droplets in sea water.
Progress
Reports
Key Word
Subject GNOME2 Principal Investigator CJ Beegle-Krause, Ph.D., NOAA/ORR/ERD
Contracting Agency NOAA/ORR/ERD
Estimated Completion This is a long term project. The current version of GNOME took 3 years to design and code. This will
take longer due to fewer coding resources
Description or Rewrite of GNOME. New functionality to support chemical pollutants in the water column.
Appendix A
NRT Science & Technology Committee Report 2008 A-37
Abstract We want a single code base to support Mac, Windows, and Linux. We want to have new and
better display options.
This upgrade of GNOME will transition from 3D (x,y,t) to 4D (x,y,z,t). The desire is to add trajectory
functionality to support spills that begin or go below the surface, either through dissolution or by
having a density greater than the ambient water. ADIOS2 is expected to be integrated into the new
framework so that more chemical information related to oils is available for trajectory predictions. A
new source module will be required that contains chemical information for trajectory prediction
modeling and a variety of spill scenarios, similar to ADIOS for oils. New visualization capabilities
will be developed to allow the trajectory modelers to visualize and interact with the trajectory
prediction, and for development of new trajectory products from the Unified Command. The GNOME
code base will be improved to support cross platform (Macintosh, Windows, Linux) development from
a single code base.
Currently development is focusing on functionality requirements for the design, including revisiting
functionality from OSSM that was not brought forward, dispersed oil GNOME, and user experience
and "wish lists". GNOME2 will be designed as a piece within a larger risk assessment framework for
future tool development in order ensure cohesive development of future risk assessment tools.
Following recommendations of the Ocean.us Data Management and Access Committee (DMAC) we
expect GNOME2 to be OPeNDAP enabled.
Progress By end of 2007 operator interface features (look and feel) should be complete
Reports
Key Word
Subject A Module for NOAA's GNOME Model to Provide Capability to Simulate Deepwater
Oil and Gas Spills Principal Investigator Poojitha D. Yapa, Ph.D. (Clarkson University - Dept. of Civil and Environmental Engineering)
Contracting Agency UNH/NOAA: Coastal Response Research Center (CRRC)
Estimated Completion Completed report available on website www.crrc.unh.edu
Description or General NOAA Oil Modeling Environment (GNOME) is a publicly available modeling tool developed
Appendix A
NRT Science & Technology Committee Report 2008 A-38
Abstract by the NOAA/HAZMAT in Seattle, Washington. GNOME can be used and is being used in real time
during emergencies as well as for contingency planning. It has easy to use interfaces and a wide variety
of databases. Clarkson Deepwater Oil and Gas Model (CDOG) is a 3-D model that simulates the
behavior of deepwater or shallow water jets and plumes that consist of oil, gas or an oil and gas
mixture. CDOG takes into account unsteady-state 3- D variation of ambient currents and density
stratification. CDOG can simulate jets and plumes even in the presence of strong currents, where the
phase separation may occur. CDOG can simulate well or pipeline blowouts, as well as an oil leak from
a sunken ship. CDOG was recently verified using data from the large-scale field experiment
"Deepspill" conducted in the North Sea. CDOG has many capabilities that GNOME does not have.
However, CDOG does not have a user interface nor does it simulate the fate and transport of oil once it
reaches the water surface.
While CDOG is a powerful tool with the ability to comprehensively simulate a well blowout scenario,
two minor modifications are needed to make it useful as a practical tool. These are: i) Linking CDOG
to a widely available oil spill modeling tool, GNOME, developed by NOAA/HAZMAT; ii)
Establishing an improved method to calculate the oil droplet size distribution within the plume due to
the blowout. The oil droplet size determines how soon and how much oil will surface as a result of the
blowout. The larger droplets will surface faster but the smaller ones will remain dispersed in water for
a very long time. With the two modifications suggested above, CDOG will become a model/tool with
immense practical value in real emergencies and contingency planning involving oil well blowouts or
other underwater discharges like a sunken ship. CDOG is not site specific and can be used in any
location through the change in input data. Therefore, it can be used to both at national and regional
levels. This proposal is to implement the two point improvement. The finished product will be
available to the GNOME users as an add-on tool through the NOAA distribution system. The finished
product will be useful at a minimum to several government agencies and oil companies.
Progress
Reports
Key Word
Appendix A
NRT Science & Technology Committee Report 2008 A-39
Subject Fate and Effects of Emulsions Produced After Oil Spills in Estuaries Principal Investigator Richard Lee, Ph.D. and Keith A. Maruya (Skidaway Institute of Oceanography)
Contracting Agency UNH/NOAA: Coastal Response Research Center (CRRC)
Estimated Completion Completed report available on website www.crrc.unh.edu
Description or
Abstract
Emulsions often form after oil spills and their persistence, along with increased density and viscosity,
makes for difficult cleanup operations. The fate and effects of emulsions after they enter salt marsh
estuaries is the focus of the proposed study. The contribution of solar radiation to emulsion effects, i.e.
phototoxicity, is an important aspect of the study. Specific studies to address these broad objectives
include the following: (1) determine stability and properties of water-in-oil emulsions and clay oil-in-
water emulsions formed by five different crude oils; (2) determine the concentrations of polycyclic
aromatic hydrocarbons (PAHs) and their photo-oxidation products in emulsion water before and after
exposure to solar radiation; (3) determine effects on grass shrimp embryos exposed to solar irradiated
oil emulsion water; (4) determine degradation rates and biological effects of an oil emulsion and a non-
emulsion forming oil in estuarine mesocosms. To carry out these studies we will analyze emulsion
water and sediments for PAHs and their oxidation products by gas chromatography- mass
spectrometry. The toxicity of photo-oxidation products from oil emulsions to grass shrimp embryos, as
well as the toxicity due to a combination of bioaccumulated PAHs and solar exposure, will be
determined. After the addition of emulsions to sediments in estuarine mesocosms, changes in PAH and
oxidized PAH profiles and concentrations over one year will be determined. Changes in the toxicity of
oiled sediments over time will be determined by testing the sediments with the grass shrimp bioassay.
This bioassay produces data on the percent of females, which reach full maturity, the percent of
embryos which reach the zoea stage and the DNA damage (comet assay) in produced embryos.
Oil spill models and ecological risk assessment of oil spills require information on the extent of the
emulsion formation by particular oil, the degradation rates of the emulsion and the effects of the
emulsion on biota. In addition, information on emulsion formation, prominent photo-oxidation
products and degradation and biological effects will be useful in designing studies to test the
effectiveness of de-emulsifiers and whether they cause change to the biota.
Progress
Reports
Key Word
Appendix A
NRT Science & Technology Committee Report 2008 A-40
Subject Mitigating Oil Spills from Offshore Oil and Gas Activities by Enhancement of Oil-
Mineral Aggregate Formation Principal Investigator Dr. Ken Lee, DFO Canada - Center for Offshore Oil and Gas Environmental Research (COOGER)
Contracting Agency Minerals Management Service
Estimated Completion 12/1/2007
Description or
Abstract
To assess the feasibility of a marine oil spill countermeasure strategy based on the stimulation of oil-
mineral aggregate (OMA) formation. Experiments will be conducted on both laboratory and wave tank
systems under controlled conditions to evaluate its potential effectiveness for the treatment of oil spills
from ships, facilities or pipelines. Conceptual mathematical models will be developed from the data to
identify the fundamental processes affecting operational effectiveness as a means to provide guidance
for field operations.
Progress This project has just been initiated. Reports
Key Word
Subject Development of a Numerical Algorithm to Compute the Effects of Breaking Waves on
Surface Oil Spilled at Sea: Dispersion and Submergence/Over-washing as Extremes of a
Theoretical Continuum Principal Investigator Mark Reed, Ph.D., Per S. Daling, and Øistein Johansen, Ph.D. (SINTEF Materials and Chemistry,
Norway)
Contracting Agency UNH/NOAA: Coastal Response Research Center (CRRC)
Estimated Completion 2009
Description or
Abstract The objective of this project is to develop a set of algorithms for modeling natural dispersion of spilled oil
at sea, with an eye towards unifying real oil-in-water dispersion (i.e. clouds of droplets being driven into
the water column by breaking waves) with submergence, under a single concept. Submergence can be
viewed as "dispersion of non-dispersible oil", resulting in the over-wash of near-neutrally buoyant “blobs”
or "patches" or "carpets" of non-Newtonian oils such that they may be submerged for long periods of
time, given sufficient surface turbulence. Such oil mats are probably subject to breakdown into tar balls,
Appendix A
NRT Science & Technology Committee Report 2008 A-41
but over a time scale that is poorly known.
The methodology proposed will carry the experimental work started by Delvigne and Sweeney (1988,
1993, 1994) into higher viscosity, non-Newtonian regions in the parameter space of the problem. The
dimensions of the parameter space will also be increased to include emulsification, interfacial tension and
rheological characteristics, in addition to viscosity and turbulent energy, as parameters in the equations.
The outcome or end product will be a publication of the algorithms developed during the study, such that
the results are available to the international scientific community. It is anticipated that these algorithms
will also provide an eventual basis for including chemical dispersion, sediment interactions, and actual
sinking of oil in the future.
The model algorithms can be implemented in NOAA’s, as well as other, oil spill weathering and
trajectory simulation models with applicability to spill response preparedness and decision-making, and
implementation of optimum spill recovery strategies.
The proposed CRRC project will also receive additional data input from other completed and on-going
projects funded by industry. The purpose of these other projects is generally to develop data on
weathering of crude oils of interest to the respective companies. Such data are used as input to the
SINTEF oil weathering model, whereas the CRRC project has the primary purpose of developing new
algorithms spanning a range of oil types over a longer time frame. The projects are thus complimentary.
To the extent that other projects can supply sufficient data for “typical” crude oils, this project will focus
on heavy oils and petroleum products.
Progress
Reports
Key Words
Subject Delivery and Quality Assurance of Short-Term Trajectory Forecasts from HF Radar
Observations. Principal Investigator Garfield, N. (San Francisco State University), J. Paduan (U.S. Naval Postgraduate School), and C.
Ohlmann (UC Santa Barbara)
Contracting Agency UNH/NOAA: Coastal Response Research Center (CRRC)
Appendix A
NRT Science & Technology Committee Report 2008 A-42
Estimated Completion 2009
Description or
Abstract
The project is proposing to develop, assess, and document the use of real-time ocean surface current
maps from high frequency (HF) radar installations. Specifically, we will evaluate the use of these data
in support of oil spill response activities. An extensive test of these capabilities was conducted in
connection with the NOAA Safe Seas 2006 oil spill exercise offshore San Francisco in August, 2006.
We intend to conduct a systematic post-exercise evaluation and to document lessons learned. We also
intend to quantitatively assess the performance of the short-term (24-hour) surface current prediction
methodology that was developed for the Safe Seas 2006 exercise by comparing observed and predicted
currents under a wide range of environmental conditions. To aid that assessment, we will conduct a
multi-day, multi-deployment field experiment using an array of GPS-tracked surface drifters. Finally,
we intend to document our results in the form of a package of recommendations and procedures for the
integration of HF radar-derived products into real-time spill response protocols..
Progress
Reports
Key Word
Subject Measurements and Modeling of Size Distributions, Settling and Dispersions
(turbulent diffusion) Rates of Oil Droplets in Turbulent Flows Principal Investigator Joseph Katz and B. Gopalan (The Johns Hopkins University, Department of Mechanical Engineering)
Contracting Agency UNH/NOAA: Coastal Response Research Center (CRRC)
Estimated Completion 2009
Description or
Abstract
The objective this proposal is to measure and parameterize the effects of turbulence and oil properties
on the mean settling velocity, dispersion (turbulent diffusion) rate, and characteristic size distributions
of oil droplets in sea water. These data are essential for modeling and predicting the dispersion rate of
oil spills treated with dispersants. The measurements will be performed in a specialized laboratory
facility that enables generation of carefully controlled, isotropic, homogeneous turbulence at a wide
range of fully characterized intensities and length scales, covering most turbulence levels that one may
expect to find in coastal waters. Crude and processed oil droplets will be injected into the sample
volume, and their three-dimensional trajectory will be measured at high resolution using high-speed
Appendix A
NRT Science & Technology Committee Report 2008 A-43
digital holographic cinematography. The selected oils have varying viscosity, density and surface
tension, especially due to introduction of dispersants, and the droplets vary in size from 30 μm to 2
mm. We will also introduce large oil droplets and/or small patches of oil and measure the size
distribution of droplets resulting from exposure to turbulence-induced shear. Since effectiveness of
dispersants varies with water salinity, the measurements will be performed in water with varying salt
concentration. Subsequent analysis, consisting of calculating the Lagrangian autocorrelation functions
of droplet velocity, will provide the turbulent dispersion rates, along with their mean settling/rise
velocity as a function of droplet and turbulence properties. All the equipment, data analysis procedures
and software needed for performing the proposed objectives are available, and have been developed in
recent years specifically for studying the dynamics of droplets in turbulent flows. The results will be
expressed in terms of dimensionless variables that can be conveniently incorporated into computational
models that forecast the entrainment and dispersion of oil droplets generated as oil sleeks break.
Collaboration with researchers in the Hazardous Materials Response Division of NOAA will facilitate
smooth transition of the data into their models for oil and chemical dispersive processes.
Progress
Reports
Key Word
Subject Identification of Window of Opportunity for Chemical Dispersants on Gulf of Mexico
Crude Oils Principal Investigator Mr. Randy Belore, S.L. Ross Environmental Research Ltd.
Contracting Agency Minerals Management Service
Estimated Completion November 27, 2007
Description or
Abstract
The objective of this research was to develop best-fit correlations between readily available fresh oil
properties and the window of opportunity for successful chemical dispersant use on Gulf of Mexico
crude oils. The goals of the work were to:
1. Enter the fresh and weathered oil property information available in Environment Canada‟s oil
property database for 30 oils from the Gulf of Mexico Region of the US OCS into the SL Ross
Appendix A
NRT Science & Technology Committee Report 2008 A-44
oil spill model.
2. Use the SL Ross oil spill model to identify the time window for chemical dispersibility for each
oil (based on oil or emulsion viscosity predictions) for oil spill scenarios using average
environmental conditions for the US GOM.
3. Correlate fresh oil property information to the time window estimates to identify possible
mathematical models for chemical dispersibility time window versus fresh oil properties.
4. Prepare a report documenting the oils used, the model input data, the spill modeling methods,
the correlation results and the final best fit models of fresh oil property versus time window of
opportunity for dispersant use.
Progress Completed
Reports Identification of Window of Opportunity for Chemical Dispersants on Gulf of Mexico Crude Oils,
November 2007, By Randy Belore, S.L. Ross Environmental Research Ltd., Ottawa, ON, Canada
http://www.mms.gov/tarprojects/595.htm
Key Word
Subject Understanding the Effects of Time and Energy on the Effectiveness of Dispersants Principal Investigator Dr. Per Daling, SINTEF Materials and Chemistry
Contracting Agency Minerals Management Service
Estimated Completion December 2007
Description or
Abstract
This international joint research project is designed to gather data to support decision makers in the
process of determining whether dispersants should be used in low energy environments. This
information will be useful for dispersant decision making in ice cover (an ice field reduces wave
motion) or other calm conditions. Questions to be addressed are:
Will the dispersant stay with the oil until there is enough energy to disperse the slick?
How much energy is needed to disperse the slick after dispersants are applied?
Appendix A
NRT Science & Technology Committee Report 2008 A-45
If energy is provided to facilitate dispersion, will the droplets stay in the water column after mixing or
will they resurface?
This project currently has nine partners: ExxonMobil, Total, Statoil, US MMS, OSRL, Alaska Clean
Seas, Sakhalin Energy Investment Company (Shell operated), Dept. of Fisheries and Oceans Canada,
and Texas General Land Office. Participants can contribute funds directly or in-kind work.
Progress Presently we are working on Task 1 of this project, laboratory scale dispersant effectiveness tests
performed by SINTEF using IFP testing procedures. In these tests we are evaluating four commercial
dispersants by applying them to four different oils (a napthenic oil, an asphaltenic oil, a waxy oil and a
paraffinic oil), letting them soak for several hours up to several days, and then running the IFP test to
measure dispersion effectiveness. Additional tasks for this project include Tasks 2/3 -- develop a
numerical model to predict the energy needed to shear dispersed oil droplets from a slick and energy
needed to keep a dispersed oil droplet in the water column; Task 4 -- validate the numerical model using
tank tests. The completion of these additional tasks will depend on the willingness of the partners to
provide additional funding because Task 1 will completely consume our current budget.
Dispersant testing was completed at SINTEF and CEDRE using the IFP tests. The project Steering
Committee approved a change to Task 3 and extended the contact time of the ice tests to 1.5 months.
The Steering Committee has approved the final report. This project is complete.
Reports AA: Effects of Time on the Effectiveness of Dispersants – Final Report, Resby, J.L., Brandvik, P.J.,
Daling, P.S., Guyomarch, J., Eide, I., SINTEF, Cedre, Statoil, 116 pp., December15, 2007.
http://www.mms.gov/tarprojects/563.htm
Key Word
Subject Changes with Dispersant Effectiveness with Extended Exposure in Calm Seas
Principal Investigator Dr. Ken Trudel, Mr. Randy Belore, Mr. Alun Lewis, S.L. Ross Environmental Research Ltd. and Alun
Lewis Oil Spill Consultancy
Contracting Agency Minerals Management Service
Appendix A
NRT Science & Technology Committee Report 2008 A-46
Estimated Completion 2007
Description or
Abstract
The objective of this research project is to continue to investigate the conditions that might lead to the
loss of surfactants from dispersant-treated oil, so that subsequent application of breaking waves will not
result in dispersion. A one-week test series will be conducted at Ohmsett - The National Oil Spill
Response Test Facility. Long-term exposures of "topped" Oseberg crude oil will be pre-mixed with
Corexit 9500 dispersant on the Ohmsett tank surface will be completed.
Progress A one-week test series was conducted in June 2007 at Ohmsett - The National Oil Spill Response Test
Facility. "Topped" Oseberg crude oil was pre-mixed with Corexit 9500 dispersant and placed on the
tanks surface for long-term exposure experiments. Laboratory scale experiments were completed in
August 2007. The laboratory data and Ohmsett tank test data are being analyzed and the draft final
report is in preparation.
The Steering Committee has approved the final report. This project is complete.
Reports Report AA - Changes in Dispersant Effectiveness with Extended Exposure in Calm Seas – Final
Report, SL Ross Environmental Research Ltd., A. Lewis Oil Spill Consultancy, MAR, Inc., 27 pp.,
December 2007. There are two (2) film clips associated with the final report AA that are available free
of charge on the MMS website.
http://www.mms.gov/tarprojects/590.htm
Key Word
Appendix A
NRT Science & Technology Committee Report 2008 A-47
GEOGRAPHIC INFORMATION SYSTEMS & INFORMATION MANAGEMENT
HAZARDOUS SUBSTANCE RESPONSE
Subject CAMEO Chemicals: NOAA’s New Online Tool for Hazardous Materials Responders Principal Investigator David Wesley, NOAA/ORR
Contracting Agency NOAA: Office of Response & Restoration
Estimated Completion February 2007
Description or
Abstract
Responding to hazardous material releases is a complex and dangerous business. For the last two
decades, emergency responders have relied on NOAA's popular CAMEO software suite for response
recommendations about the chemical hazards confronting them. Now responders can turn to CAMEO
Chemicals--a free, easy-to-use website--for quick access to CAMEO's popular chemical library and
reactivity prediction tool. Find it online at http://cameochemicals.noaa.gov/. CAMEO Chemicals was
developed by the Office of Response and Restoration in partnership with the U.S. Environmental
Protection Agency and the U.S. Coast Guard.
Progress Complete
Reports
Key Word
Subject River Dilution Calculator for Chemical Spills Principal Investigator Dr. Chris Barker: NOAA/ORR
Contracting Agency USCG R&D, NOAA Office of Response & Restoration
Estimated Completion Phase 1: Done
Phase 2: 4th quarter 07
Description or A simple tool to help responders and planners assess the risk from chemical spills in rivers.
Appendix A
NRT Science & Technology Committee Report 2008 A-48
Abstract
Progress Phase one Complete.
Phase two underway
Reports We concluded after phase one that some additional work is required to make the tool more generally
useful operationally. The current version is only useful for fairly large spills in fairly small rivers.
Phase two will extend the tool to bound concentrations for small spills in larger rivers, significantly
enhancing the numbers of event for which the tool is useful.
Key Word
HUMAN DIMENSIONS & RISK COMMUNICATIONS
Subject Integrating demographic and physiological parameters in NRDA Principal Investigator Florina Sze-Fong Tseng DVM (Wildlife Clinic, Tufts University School of Veterinary Medicine)
Victor Apanius, Ph.D. (Department of Biology, Wake Forest University) Ian Nisbet, Ph.D. (ICT
Consulting)
Contracting Agency UNH/NOAA: Coastal Response Research Center (CRRC)
Estimated Completion Completed report available on website www.crrc.unh.edu
Description or
Abstract
Chronic, delayed and sub-lethal effects of oil exposure on wildlife populations are problematic for
Natural Resource Damage Assessment. This research will addresses a critical R&D need for
integrating measures of injury assessment with resource recovery metrics. We have an extensive
ecological, demographic and physiological dataset spanning 35 years of research on two seabird
populations, the federally endangered roseate tern ( Sterna dougallii) and the state-listed common tern (
Sterna hirundo) at 3 sites in Buzzards Bay, MA. On 27 April 2003, the Bouchard 120 barge released
about 100,000 gallons of No. 6 fuel oil into the estuary just as these populations initiated breeding.
Oiling was widespread but focal, impacting one study site heavily, one site moderately and the third
site lightly. We continued our routine demographic data collection and blood sampling. On 6 June
Appendix A
NRT Science & Technology Committee Report 2008 A-49
2003, the Joint Assessment Team (JAT) funded additional demographic data collection and blood
sampling but has declined to fund long-term analysis of the demographic data or the blood samples.
We propose to use this unique collection of demographic data and blood samples to address critical
R&D needs of the oil spill response community.
Our specific objectives include: 1. The Role of Population Variability in Demographic Injury
Assessment. We will use our time series data to construct confidence limits for detecting demographic
injury and power analysis to determine the sampling designs for injury assessment. 2. The
Development of Physiological Predictors of Wildlife Population Health. Blood samples collected prior
to, during and following the oil spill will be analyzed for hematological parameters and examine the
utility of these parameters for estimating the time-course of acute non-lethal injury. 3. The Integration
of Physiological Predictors and Demographic Parameters. We will combine results from the first two
objectives to determine the ability of physiological parameters to immediately predict long-term
demographic outcomes. We will utilize an oil spill event that fortuitously created a natural experiment
for integrating extensive baseline data with intensive physiological measurements to develop analytical
tools for gauging sub-lethal injury and measuring the recovery of ecosystem health.
Progress
Reports
Key Word
Subject Social disruption from oil spills and spill response: Characterizing effects, vulnerabilities,
and the adequacy of existing data to inform decision-making Principal Investigator Thomas Webler (Social and Environmental Research Institute, Inc.)
Contracting Agency UNH/NOAA: Coastal Response Research Center (CRRC)
Estimated Completion May 2010
Description or
Abstract
Oil spill response planners never disregard the human dimensions of oil spills. In fact, the National
Contingency Plan requires that items of economic and environmental importance that are threatened by a
spill be covered in the plan. However, the strength of ecological concerns and the wealth of information on
ecological sensitivity tend to be primary drivers in contingency planning. The socioeconomic lags behind
Appendix A
NRT Science & Technology Committee Report 2008 A-50
the ecological in terms of readily available information and tools to assess sensitivity. Social endpoints that
are acutely threatened are protected in an emergency response, but the systematic assessment of social and
economic effects is not widely done in area-based contingency planning processes. This research project
investigates what is involved in bringing a systematic assessment of socioeconomic vulnerability
considerations into area-based oil spill contingency planning. While this project has one eye on the
ultimate goal of producing practical decision-support or social impact assessment tools, it presupposes that
several types of information need to be collected, evaluated, and synthesized before such tools can be
constructed. Specifically: (1) human dimensions endpoints threatened by oil spills need to be
systematically identified; (2) the relationships between these endpoints, effects, and planning and
management actions should be evaluated; (3) the sufficiency of existing data and data-analysis tools to
characterize and anticipate these causal relations must be assessed. Initial inquiries with emergency
responders and contingency planners into these questions have validated their importance.
Drawing on existing data wherever possible, we propose to review qualitative data to reveal the types of
human dimensions endpoints that matter in oil spills. In Phase 1, we will document how the importance of
endpoints can be understood and, eventually, measured using the conceptual framework of vulnerability.
We will meet with experienced personnel as part of three case studies to identify endpoints of concern and
use the conceptual framework of vulnerability to identify key factors influencing losses. The information
we gather will be structured in a way that facilitates planning interventions. In Phase 2, we will investigate
to what extent existing data are capable of depicting the human dimensions considerations identified in
Phase 1 and we will propose recommendations for how a planning process that has been strongly led by
ecological considerations can be broadened to also include the most important human dimensions. These
recommendations will also summarize how oil spill planning can proceed using a perspective that
highlights the coupled human and natural systems.
Progress
Reports
Key Word
Appendix A
NRT Science & Technology Committee Report 2008 A-51
MECHANICAL RECOVERY & TREATMENT
Subject Investigation of the Ability to Effectively Recover Oil Following Dispersant Application Principal Investigator Mr. Steve Potter, SL Ross Environmental Research Ltd.
Contracting Agency Minerals Management Service
Estimated Completion Complete
Description or
Abstract
To determine whether the application of dispersants to an oil slick reduces the ability to subsequently
recover oil with conventional skimming systems. The objectives will be met through a series of bench
scale tests and full scale tank experiments at Ohmsett - The National Oil Spill Response Test Facility.
http://www.mms.gov/tarprojects/589.htm
Progress The test plan and laboratory-scale experiments were completed in June 2007. The full-scale experiments
were conducted in June 2007 at the Ohmsett Facility immediately before Project 590 (Changes with
Dispersant Effectiveness with Extended Exposure in Calm Seas). This reduced the test and tank cleanup
costs. The final project report has been accepted by MMS. This project is complete.
Reports Investigation of the Ability to Effectively Recover Oil Following Dispersant Application – Final Report,
SL Ross Environmental Research Ltd., 21 pp., December 2007.
Four video clips are also available.
Key Words Dispersant, Ohmsett
Appendix A
NRT Science & Technology Committee Report 2008 A-52
NATURAL RESOURCE INJURY ASSESSMENT & RESTORATION
Subject Ecology and Economics of Restoration Scaling Principal Investigator Charles H. Peterson (University of North Carolina) and Eric P. English (NOAA/ORR)
Contracting Agency UNH/NOAA: Coastal Response Research Center (CRRC)
Estimated Completion Completed – Final Report under review
Description or
Abstract
We propose to develop a synthesis of restoration scaling methods used in coastal response and restoration.
Resource managers throughout the country, and increasingly throughout the world, rely on a wide
selection of methods to determine the appropriate quantity and type of restoration to compensate for oil
spills and other perturbations to ecological resources and systems. Methods for restoration scaling draw
on a variety of techniques from the fields of ecology and economics. These include the development of
metrics that quantify ecological services, the use of models to establish equivalence between injured and
restored services, and valuation of the use of resources for recreation and other activities. By summarizing
scaling applications contained in hundreds of published articles, research reports and government
documents, the project will help practitioners identify scaling methods appropriate to particular resource
injuries. By recasting the relevant ecological and economic techniques in a unified presentation of scaling
methods, the project will assist researchers from a variety of specializations identify new research
opportunities. The final product will be a thorough and intuitive text that will make restoration scaling
techniques more accessible to scientists, public officials, industry, and the public. Workshops will be
conducted to disseminate results and provide an introduction to the use of the text as a resource for
restoration planning and outreach.
Progress
Reports
Key Words
Subject Establishing Performance Metrics for Oil Spill Response, Recovery and Restoration Principal Investigator Seth Tuler, Ph.D. (SERI), Igor Linkov, Ph.D. (Cambridge Environmental), Thomas P Seager, Ph.D.
(Purdue University)
Appendix A
NRT Science & Technology Committee Report 2008 A-53
Contracting Agency UNH/NOAA: Coastal Response Research Center (CRRC)
Estimated Completion Completed report available on website www.crrc.unh.edu
Description or
Abstract
This project seeks to establish a multidisciplinary research program that examines spill management
metrics from both scientific and stakeholder perspectives. The primary objective of this research is to
create a method that can be used by the responsible government agencies to establish performance
metrics for spill and ecological assessment that can be vetted by and are responsive to regional
stakeholder concerns prior to spill events. The approach proposed is one of using the New England
region as a laboratory for proving a method that could be applicable to other areas. A multi-step
approach involving experts, stakeholder groups including local government officials, and the public is
proposed which balances science-driven and values-driven concerns. In the first step, broad concerns,
objectives, and preferences are elicited from stakeholder groups. These are communicated to experts,
who will formulate broad-based quantitative criteria that inform these concerns. Lastly, multiple
measurable metrics (and data collection methods) shall be proposed that can be measured in the field to
gauge progress. Examination of recent spills such as the grounding of a tank barge in Buzzards Bay on
April 27, 2003 or the North Cape oil spill in Narragansett Bay on January 19, 1996 will provide an
inventory of historically significant metrics employed during response, damage assessment, recovery
and restoration such as total gallons (barrels) spilled, total shellfish and bird deaths, total acres and
duration of shellfish bed closures, or economic losses, and provide a framework for assessing attitudes
and opinions regarding the efficacy of these metrics. Throughout, an iterative process will be employed
that requires communication of interim findings between stakeholder and expert groups until finally
culminating in a joint conflict and compromise analysis workshop. The major findings of the study
shall be employed to devise a method of stakeholder value elicitation, expert consultation, and
performance metrics identification that can be more generally applied.
We expect that successful completion of this research will result in a powerful tool for strategic
planning in preparation for spills, tactical decision-making in the event of a spill, and damage
assessment, recovery, and restoration efforts after spills. Moreover, the specific inclusion of important
public and stakeholder views prior to occurrence of a spill may result in a greater understanding of the
conflicts and trade-offs facing spill managers, improve communication between lay and expert groups,
and result in swifter, more satisfying decisions.
Appendix A
NRT Science & Technology Committee Report 2008 A-54
Progress
Reports
Key Word
Subject Monetary Values and Restoration Equivalents for Lost Recreational Services on the
Gulf Coast of Texas Due to Oil Spills and Other Environmental Disruptions Principal Investigator George R. Parsons, Ph.D. (University of Delaware)
Contracting Agency UNH/NOAA: Coastal Response Research Center (CRRC)
Estimated Completion Completed – Final Report under review
Description or
Abstract
I propose to develop a recreation demand model for beach use on the Gulf Coast of Texas to value
damages due to oil spills and other environmental disruptions. The methodology will be a travel cost
random utility model and will be estimated using an existing data set available through the National
Park Service (NPS). The damages will be valued in terms of monetary and non-monetary
compensation. The non-monetary computation or “restoration equivalent” will consider measuring the
necessary compensation in a variety of different terms such as added coastal park space, expanded
beach clean-up programs, improved access for fishing, new beaches, and so forth. The model will be
designed to allow for valuation of short term and long term disruptions. Short term disruptions are
episodes that begin and end within one season, such as an oil spill that closes a beach for a couple
weeks. I will also develop algorithms using the model to select “restoration equivalents” such that
compensation is closely aligned with actual damages across individuals. Finally, I will conduct a
transfer analysis using the model. The results will be transferred to the Mid-Atlantic region where I am
presently conducting another beach-use study. This will allow for a test of the results. The end products
(aside from the actual valuation estimates) include presentations at the International Oil Spill
Conference and other selected professional meetings; articles submitted to leading journals in
environmental economics; and model, data, and code for estimation provided to economists at the
Damage Assessment Center at NOAA and the Damage Assessment and Restoration Branch at NPS.
Progress
Reports
Key Word
Appendix A
NRT Science & Technology Committee Report 2008 A-55
Subject Developing a Method for Estimating Injury and Risk to a Major NOAA Trust
Resource (Finfish) due to Persistent Bioaccumulative chemicals: Mercury Principal Investigator Tom Dillon and Nancy Beckvar (NOAA/ORR)
Contracting Agency UNH/NOAA: Coastal Response Research Center (CRRC)
Estimated Completion 2009
Description or
Abstract
In 2005, the Co-PIs for this proposal published a peer-reviewed journal article (ETAC 24:2094-2105)
identifying “protective” tissue concentrations of Hg and DDT in fish. This was a valuable contribution
in that it identified for ORR staff in a peer-reviewed journal format, what levels of PB chemicals
represent de minimus injury or risk to fish. What the paper did not do is report what levels of adverse
effects may be expected at tissue concentrations above the “protective” concentrations. For example,
what is the injury to a fish carrying a Hg body burden of 1 mg/kg that is above the protective
concentration of 0.2 mg/kg? ORR staff are asking this type of question right now at sites and cases
around the country involving PB chemicals.
The proposed work will, in short, produce two needed tools; 1) a complete whole-body residue-based
dose-response curve for mercury in fish based on extant published toxicological data and 2) the
quantitative relationships between disparate measures of adverse effects (e.g., reduced survival,
growth, reproduction) and fish injury. For example, 0% survival could be construed as 100% fish
injury; 0% hatching success as 100% injury; and so on. This latter approach, using injury as a common
metric for integrating multiple data sets, is a truly innovative aspect of this work. Results will serve
both the injury assessment and risk assessment communities within ORR and the broader
scientific/regulatory communities.
Briefly, the approach will be to review and synthesize existing Hg residue-effects literature (≈ 20
papers). We will develop criteria to exclude suspect or questionable data in a consistent and unbiased
fashion. We will establish the quantitative relationships between disparate biological endpoints and the
common “injury” metric. The residue- based dose-response curve will then be “field verified” by
examining model outputs against the previously published “protective” tissue concentration as well as
independently derived national “background” tissue concentrations.
Appendix A
NRT Science & Technology Committee Report 2008 A-56
Progress
Reports
Key Word
Subject Using Benefit Transfer to Evaluate the Effectiveness of Restoration Projects Principal Investigator Christine Poulos, Ph.D. (RTI International - Environmental and Natural Resource Economics)
Contracting Agency UNH/NOAA: Coastal Response Research Center (CRRC)
Estimated Completion Completed – Final Report under review
Description or
Abstract
Natural resource damage assessment (NRDA) economists‟ needs for site-specific nonmarket benefit
estimates far exceeds their availability; and time and budget constraints prohibit the development of
new, site-specific estimates to meet their needs. Using pre-existing benefit estimates to measure
benefits at a new project site, or application site is known as the benefit transfer approach (BT) to
nonmarket valuation. Because it is a low-cost method that relies on using existing information, it is
used in NRDA more often than any other nonmarket valuation (NMV) method to scale restoration
projects (Willis and Garrod 1995).
Numerous studies conclude that BT is flawed because it fails convergent validity tests, which poses
two important problems for NRDA. First, inaccurate benefit estimates will lead to inappropriately
designed restoration projects. Second, the alternative methods of NMV are more expensive than BT.
However, the specific methods used to implement BT, rather than the logic of the approach itself, can
account for the failure to find convergent validity because the most commonly used BT methods
impose restrictive assumptions. Three main factors drive the size of benefit estimates: the commodity,
the availability of substitutes and complements for the commodity, and the socioeconomic
characteristics of the sample. But, most BT methods (and convergent validity tests) either assume that
all these factors are identical at the two sites or make crude adjustments that are not constrained to be
consistent with the underlying model of individual behavior or with the ecological realities.
In recent years, researchers have been developing benefit transfer methods that permit adjustments that
are constrained to be economically and ecologically consistent. These methods are broadly classified as
structural benefit transfer because are linked to the underlying structural model, which is a model of
Appendix A
NRT Science & Technology Committee Report 2008 A-57
individual preferences. The use of these new methods is growing and they have the potential to
increase the credibility of BT, conditional on being tested and proven in various settings. The
parameter updating method is one structural benefit transfer method that was introduced and tested to
measure the benefits of malaria prevention in Africa (Poulos 2003). That application suggested that the
method may increase the convergent validity of BT in that context. The method relies on (a) a
structural model to guide adjustments in the benefit function based on (b) site-specific data from the
new, or application site.
The proposed proof of concept project would apply the parameter updating method to answer a
question often faced by economists conducting NRDAs: What are the recreational fishing benefits of
improvements in water quality? The project will make use of existing recreational fishing studies,
selected with end user partners, to test the convergent validity of the method in this context. We hope
to partner with economists in NOAA‟s Damage Assessment Center headquarters in Silver Spring, MD
because of their experience and the fact that state trustees rarely have economists on staff. The PIs have
experience implementing a variety of NMV methods in the NRDA and other contexts. Further, a
number of RTI researchers are involved in developing and testing structural benefit transfer methods.
The project would take six months to complete.
Progress
Reports
Key Word
OIL TOXICITY & EFFECT
Subject A Knowledge-Based Reasoning for the Interpretation of PAH Data Principal Investigator Mike Buchman (NOAA/ORR)
Contracting Agency UNH/NOAA: Coastal Response Research Center (CRRC)
Appendix A
NRT Science & Technology Committee Report 2008 A-58
Estimated Completion 2009
Description or
Abstract
This project will produce a knowledge-based reasoning model for the interpretation of PAH data. The
model will interpret available data to provide an indication of the PAH source type. This knowledge-
based model will draw upon and compile information and techniques from numerous peer- reviewed,
published papers. This published information will form the foundation for implementing the
knowledge-based approximate reasoning model through the procedures of fuzzy logic, a significant
new branch of mathematics. Fuzzy logic is concerned with the quantification of membership within a
set and associated set operations. Output from the model can be thought of as an expression of an
observation’s degree of membership in a set (pyrogenic sources, petrogenic sources, and so on) This
model will be accomplished within the Ecosystem Management Decision Support (EMDS) application
framework which integrates the logic engine of NetWeaver (Rules of Thumb, Inc.) and ArcGIS (ESRI)
to perform spatially relevant evaluations (within Microsoft Windows). To conduct an analysis with
EMDS, the user would merely provide a data view that includes a GIS theme containing PAH chemical
analysis. This provides the input to the knowledge base that describes how to interpret the information
provided. Other components of the EMDS application framework will supply valuable ancillary
information regarding the evaluation: The Hotlink Browser provides an intuitive explanation for the
results, while the Data Acquisition Manager will assist with determining what missing data would have
the largest impact on results.
The NetWeaver logic engine evaluates data against a knowledge base that provides a formal
specification for the interpretation of data. The logic engine allows partial evaluations based on
available information, making it ideal for use in situations where the level of detail in PAH data is
often variable and incomplete. A second key feature provided by the logic engine is the ability to
evaluate the influence of missing information on the logical completeness of an assessment. The
engine, in conjunction with the EMDS Project Environment and the Data Acquisition Manager,
provides powerful diagnostic tools for determining which missing data may be most valuable, given
the available data, and determining how much priority to give to missing data, given other logistical
information.
Sophisticated geographic analyses often produce impressive looking maps. However, if the analytical
system that produces a map cannot also explain the derivation of analysis results being portrayed in a
Appendix A
NRT Science & Technology Committee Report 2008 A-59
relatively simple and straightforward way, then the system appears to observers as a black box. The
Hotlink Browser displays the evaluated results of a knowledge base. Users can navigate the networks
of analysis topics to trace the logic of evaluations in an intuitive interface. More importantly, the
presentation of results in this graphic format is sufficiently intuitive, so users of the system can use the
Hotlink Browser as a powerful communication tool that effectively explains the basis of evaluation
results to broad audiences.
Progress
Reports
Key Word
Subject Utility of Meiobenthos for Risk Assessment of Low-Level Crude Oil WSFs: Rapid
Copepod-Based Approaches for Evaluating Reproductive and Population-level
Toxicity Principal Investigator G. Thomas Chandler, Ph.D. and Bruce C. Coull, Ph.D. (University of South Carolina – School of the
Environment)
Contracting Agency UNH/NOAA: Coastal Response Research Center (CRRC)
Estimated Completion Completed report available on website www.crrc.unh.edu
Description or
Abstract
Oil spills on beaches, mudflats, and in salt marshes threaten flora and fauna via mechanical fouling,
contact toxicity, and especially water-soluble hydrocarbon fraction (WSF) in surface and pore waters.
If crude oil becomes buried, it may serve as a diffusion source of WSF to pore and surface waters for
months to years. There are multiple useful technologies for oil spill clean-up/remediation, but one of
the major challenges to remediation is determining "how clean is clean enough" to ensure acceptable
chronic risk reduction to sediment-dependent communities. Currently, crude-oil risk assessment cannot
say what the highest concentration of WSF constituents is that will cause minimal acceptable risk to
benthos. This project will address this challenge by testing the utility of a novel crude-oil WSF toxicity
testing approach using meiobenthic copepods; multiple single individuals will be cultured through their
full life cycles for two generations over a range of low-level WSF concentrations more typical of post-
remediation sediment or beach pore waters. This rapid copepod-based culturing approach can
determine statistically those useful thresholds of WSF toxicity where one would expect to see (not see)
Appendix A
NRT Science & Technology Committee Report 2008 A-60
population-level impacts.
Progress
Reports
Key Word
Subject The relationship between acute and population level effects of exposure to dispersed
oil, and the influence of exposure conditions using multiple life history stages of an
estuarine copepod, Eurytemora affinis, as model planktonic organisms. Principal Investigator Dr. Don V. Aurand (Ecosystem Management & Associates, Inc.)
Contracting Agency UNH/NOAA: Coastal Response Research Center (CRRC)
Estimated Completion Completed – Final Report under review
Description or
Abstract
Consideration of dispersant use in response to oil spills involves the evaluation of environmental
tradeoffs. Would there be a net environmental benefit if shoreline resources or surface water resources
were protected at the cost of increased exposure of water column organisms? Proponents of dispersant
use generally dismiss potential impacts to sensitive water column organisms if the dilution is rapid
enough to limit the magnitude and duration of exposure so that only a small fraction of the population
(or habitat) is exposed to concentrations likely to be “of concern,” with this concentration rather
loosely defined as a function of available acute toxicity data. The possibility of sublethal effects of
exposure to dispersed oil which might lead to population level effects is a serious concern for many
natural resource managers when this approach is used. While the logic is reasonable, the available
laboratory data consists almost entirely of acute toxicity information, with only occasional studies
which examine sublethal endpoints. There are no laboratory studies which attempt to determine multi-
generational consequences of short-term, sublethal exposures, and so a significant degree of
uncertainty remains. This study examines the effects of short-term exposure to dispersed weathered
Alaskan North Slope crude oil on the life history of the estuarine copepod, Eurytemora affinis, in order
to develop information on the relationship between acute toxicity, sublethal exposures, and population
level effects. After initial experiments to define the LC50 concentration using standard CROSERF
protocols, various life history stages (nauplii, immature, and mature females) will be exposed to
dispersed oil at concentrations at or below the LC50 concentration, and then followed for
Appendix A
NRT Science & Technology Committee Report 2008 A-61
approximately three generations in order to develop life history tables. In addition, the potential for
photoenhanced toxicity, a concern for organisms in the upper water column, will also be examined.
Progress
Reports
Key Word
Subject Acute and Chronic Effects of Crude Oil and Dispersed Oil on Chinook Salmon
Smolts (Oncorhynchus tshawytscha) Principal Investigator Ronald S. Tjeerdema, Ph.D., Brian S. Anderson, Michael M. Singer, Mark R. Viant Ph.D. (University
of California, Davis - Dept. of Environmental Toxicology)
Contracting Agency UNH/NOAA: Coastal Response Research Center (CRRC)
Estimated Completion Completed report available on website www.crrc.unh.edu
Description or
Abstract
Due to the large maritime transport of crude oil from Alaska to California, there is significant potential
for a catastrophic spill that could seriously impact salmon populations during key periods of their
migration, e.g., when salmon smolts are entering the ocean from native streams and rivers. While a
significant amount of research has emphasized the acute effects of oil on fish and invertebrates, few
studies have focused on the anadromous fishes endemic to California rivers, and none have addressed
the relative acute and longterm impacts of oil and chemically-dispersed oil on migrating smolts. This
project will compare the toxic actions of the water-accommodated fraction (WAF) and chemically
dispersed fraction (a chemically enhanced water-accommodated fraction; CEWAF) of Prudhoe Bay
Crude Oil (PBCO) to smolts of chinook salmon ( Oncorhynchus tshawytscha).
Progress
Reports
Key Word
Subject Studies Using an Estuarine Turtle (the Diamondback Terrapin) to Assess the
Potential Longterm Effects of Oiling of Nests during Early Embryonic Development Principal Investigator Christopher L Rowe, Ph.D. and Carys L Mitchelmore, Ph.D. (University of Maryland, Center for
Appendix A
NRT Science & Technology Committee Report 2008 A-62
Environmental Studies, Chesapeake Biological Laboratory)
Contracting Agency UNH/NOAA: Coastal Response Research Center (CRRC)
Estimated Completion Completed report available on website www.crrc.unh.edu
Description or
Abstract
This project will examine the chronic effects on traits of turtles that result from exposure to fresh crude
oil and post dispersant treated-oil during early embryonic development as would occur via oiling of
nests. Exposures to artificial nests will occur during early embryonic development of the turtles,
modeling a scenario in which oiling of nests occurs shortly after nesting. The project will have direct
significance to the brackish, estuarine, and coastal habitats of the Atlantic and Gulf coasts of the U.S.
due to the cosmopolitan distribution of the model species (the diamondback terrapin, an estuarine
turtle, and the snapping turtle, a freshwater/brackish water turtle) throughout these regions. As well,
application of the results to assessing risks of oil spills to sea turtles can be applied worldwide to
coastal systems in which nesting by sea turtles occurs. Using laboratory studies we will quantify the
chronic impacts of oil spill-related contamination of nesting areas on development, cellular and whole
animal physiology, and behavior over an entire year post-hatching. The design of the study will entail
exposures of recently-laid eggs to fresh crude oil and post dispersant-treated oil, following which
chronic effects expressed during the remaining embryonic period and early juvenile period will be
measured. Because of the protected status of marine sea turtles, this study will focus on species that
are, in most areas, not considered threatened and can thus be used to develop models for inferences
about other species. The diamondback terrapin, (Malaclemys terrapin) is a species that may be directly
affected in coastal and estuarine systems by oil spills, as well as having physiological traits (e.g.
osmoregulatory capabilities) somewhat akin to marine sea turtles. The snapping turtle (Chelydra
serpentina) is included due to its large clutch size allowing for maternal effects to be included in
analyses, egg morphology resembling the shape and size of marine sea turtles (potentially influencing
contaminant uptake dynamics), and its frequent occupation of brackish waters incurring it with some
rudimentary physiological traits similar to estuarine and marine turtles.
Progress
Reports
Key Word
Appendix A
NRT Science & Technology Committee Report 2008 A-63
Subject Survival time models quantitatively predict lethal effects of pulsed, short- and long-
term exposure to water-soluble oil spill fractions Principal Investigator Michael C Newman, Ph.D. and Michael A Unger, Ph.D. (Virginia Institute of Marine Science)
Contracting Agency UNH/NOAA: Coastal Response Research Center (CRRC)
Estimated Completion Completed report available on website www.crrc.unh.edu
Description or
Abstract
Toxicity data derived from conventional concentration-effect test designs predict effect at a specific
exposure time. A few test durations might be used to coarsely predict how mortality changes with
exposure time. Predictions are unavoidably gross because mortality information is not collected
optimally during the exposure. Also, the conventional concentration-effect approach does not quantify
mortality that occurs after exposure stops. Such post-exposure mortality can be quite high. These
shortcomings can be circumvented by noting mortality in test treatments through time including post-
exposure mortality, and applying survival time modeling to the resulting data. This project will apply
survival time methods to data generated for representative polycyclic aromatic hydrocarbons (PAH) in
the water-accommodated fraction (WAF) of weathered oil as well as in a weathered oil WAF generated
in the laboratory. Survival models incorporating exposure concentration and duration, and post-
exposure mortality will be produced for the grass shrimp, Palaemonetes pugio, a common test species
and an ecologically important one in salt marshes and other coastal environments.
Progress
Reports
Key Word
Subject Impacts of Low Level Residual Oils on Toxicity Assessments of Oil Spills Principal Investigator Joy McGrath and Dominic Di Toro Ph.D. (HydroQual, Inc.)
Contracting Agency UNH/NOAA: Coastal Response Research Center (CRRC)
Estimated Completion Completed report available on website www.crrc.unh.edu
Description or
Abstract
This project is directed at evaluating the impacts of low levels of residual oils based on assessment of
the toxicity of oil-related constituents and their exposure risks. Oils are mixtures of complex
hydrocarbons and other compounds. The primary compounds of interest in this research will be the
monoaromatic and polyaromatic hydrocarbons. These compounds are Type I narcotic chemicals and
Appendix A
NRT Science & Technology Committee Report 2008 A-64
their mode of action is narcosis. The toxicity of such compounds is additive and therefore a
methodology is needed that accounts for exposure to a mixture of hydrocarbons. The target lipid model
(TLM) and the notion of toxic units will be used to assess the toxicity of oil-related narcotic chemicals.
The specific objectives are to (1) understand the mechanism for the biological response of oil-related
compounds, (2) identify the key components of residual oil that contribute to toxicity, (3) establish a
universal endpoint (such as a toxic unit) that can be applied across different oil sources and (4) derive
endpoints for oil-related compounds that are protective of aquatic and benthic species from long-term
sub-lethal effects. A literature search will be performed to obtain short- and long-term toxicity data for
compounds of interest, both from the water column and sediment. Although the focus will be on
obtaining toxicity data for mixtures of chemicals resulting from exposure to oil, toxicity data from
exposure to single chemicals will also be investigated. The TLM will be applied to the toxicity data to
determine if the biological response can be correctly predicted and to determine if endpoints
established using the TLM are protective both on a short-term and long-term basis.
Progress
Reports
Key Word
Subject Guidance for Dispersant Decision Making: Potential for Impacts on Aquatic Biota Principal Investigator Deborah French-McCay, Ph.D. (Applied Science Associates, Incorporated)
Contracting Agency UNH/NOAA: Coastal Response Research Center (CRRC)
Estimated Completion 2009
Description or
Abstract
The proposed research addresses the major priority area identified in the Coastal Response Research
Center (CRRC) RFP “Biologically/Ecologically-Driven Spill Response”, specifically identifying the
timing and nature of trade-off decision points in the context of response activities and expected level of
resource injury. This project will provide responders with a quick guide allowing them to determine the
likely water volume adversely affected by naturally- or chemically-dispersed oil and dissolved
hydrocarbons, as well as the surface area impacted by floating oil, with which they can evaluate
tradeoffs of dispersant use and plan monitoring activities, including for natural resource damage
assessment.
Appendix A
NRT Science & Technology Committee Report 2008 A-65
It is well understood that direct measurement of water column effects from naturally and chemically
dispersed oil is extremely difficult, if not impossible, because of the inherent patchiness of
concentrations and water column organisms and the ephemeral nature of the subsurface plumes. The
spatial and temporal scales of patches with potentially toxic concentrations are typically on the order of
meters to kilometers and hours to days. Thus, modeling is the most productive method for estimating
water column acute toxic effects from dispersed oil. Modeling also provides estimates of areas swept
by floating oil and shoreline oiled, within which wildlife and shoreline habitat injuries would occur.
The Oil Spill Impact Guide (OSIG) will be based on a matrix of 240 model runs using ASA’s SIMAP
physical fates, exposure and oil toxicity models, where key variables determining impact are varied: oil
type, weathering state, oil volume, environmental (e.g., wind speed, temperature) conditions, dispersant
use, and toxicity to aquatic biota. The key model results from these runs will be the volume of water
where acute toxic effects would occur and the area of water surface oiled (which would impact
wildlife, as well as socioeconomic uses). Model results from the matrix will be summarized in both
tabular and chart format so that users of the guide can look up the order of magnitude of likely impact
and interpolate between results for intermediate conditions to those run in the matrix of scenarios.
Simple regression equations will be provided to facilitate such interpolations for intermediate volumes
of oil spilled and dispersed. The guide will be in three forms: as a report describing the approach,
assumptions and results of the modeling and guidance development; a field guide in paper/PDF format;
and a calculator in spreadsheet format that will facilitate interpolations.
The research and lessons learned from this effort will contribute to national efforts aimed at developing
decision-making tools and supporting information related to spill response, and specifically with
respect to dispersant use. The results of the research will be presented and explained to the spill
response community during or adjunct to a spill response related meeting or conference. The
presentation will be part of a focused halfday workshop on dispersant decision-making, where
discussion of the results and implications will be solicited. The seminar will include presentation of the
Oil Spill Impact Field Guide and calculator. The Oil Spill Impact Guide will be freely available on the
web.
Progress
Appendix A
NRT Science & Technology Committee Report 2008 A-66
Reports
Key Word
OUTREACH & TRAINING TOOLS
Subject Tools for Preparedness Principal
Investigator
Mr. Kurt Hansen
Contracting
Agency
USCG Research and Development Center
Estimated
Completion
2007
Description or
Abstract
PROBLEM STATEMENT: National Strike Force (NSF) members require 1 ½ to 2 ½ years to complete
their qualification process and even then require periodic refresher training to maintain proficiency. As a
result, a significant portion of NSF personnel resources are limited in their response capabilities.
PROJECT OBJECTIVE: Identify areas where technology can be used to develop, maintain or increase
preparedness in spill response, evaluate potential approaches and develop solutions. This will be done by
identifying the spill response training and experience requirements for NSF qualifications (Response
Member, Technician, Supervisor, and Officer) and evaluating current training and qualification methods and
effectiveness.
Progress The video conferences and discussions with the National Strike Force (NSF) concerning preparedness have
been completed. Additional informal discussions have been held with individual team members to follow
up on specific items. The results of the discussions are being compiled. RDC did not identify any
significant R&D needs for the teams but did identify potential policy and process solutions that merit further
evaluation.
Reports
Key Word
Appendix A
NRT Science & Technology Committee Report 2008 A-67
REMOTE SENSING & AERIAL OBSERVATION
Subject Detection of Oil on and Under Ice - Phase 3 Principal Investigator Mr. David Dickins, DF Dickins and Associates and Dr. John Bradford, Boise State University
Contracting Agency Minerals Management Service
Estimated Completion Complete
Description or
Abstract
Over the past three years, under continued MMS sponsorship, the development of oil and ice detection
system has made significant progress through a series of successful projects (TAR-517, TAR-547 and
TAR-569). This new research project http://www.mms.gov/tarprojects/588.htm will undertake a series
of four tasks to assess the technical feasibility and cost of developing and incorporating airborne oil
detection systems in future field trials with oil and ice. The tasks include:
1. Airborne Oil Under Ice Hardware Evaluation
2. Airborne Oil Under Ice Development Plan
3. Surface Oil Under Snow Modeling
4. Airborne Oil Under Ice Computer Modeling
This project is co funded with Alaska Clean Seas and the Alaska Department of Environmental
Conservation who will fund three tasks.
1. Software Update and Training for Prudhoe Bay, AK Operations
2. Preparation and Planning for Prudhoe Bay, AK Workshop
3. Conduct a 2-Day Workshop in Prudhoe Bay, AK
Progress Results from Task 1 indicates that there are no commercially available airborne radar systems with an
operating frequency range of 500MHz to 1GHz. There are two research groups that have been
developing airborne radar systems primarily for glacial ice-sheet imaging. They are the University of
Texas and the Center for Remote Sensing of Ice Sheets (CReSIS) at the University of Kansas. The
CReSIS system is the most relevant to our application. Discussions of future collaboration with
CReSIS are ongoing. The collaboration may include side by side comparison of the CReSIS system
Appendix A
NRT Science & Technology Committee Report 2008 A-68
with our commercial Ground Penetrating Radar system deployed in an airborne mode.
Measurements with the GPR were conducted over an intentional oil spill in Svea, Svalbard in April
2006 and in April 2008. The overall results from two field tests are very promising in that they indicate
that GPR using currently available systems is capable of detecting and mapping oil in ice over a broad
operational time window from early to late winter, typically November to April in the Beaufort Sea
area. This window of opportunity covers approximately 70% of the near shore fast ice season in most
years. The current generation GPR is capable of mapping oil under or trapped within growing winter
ice from 30-210 cm (1-7 foot thick). Minimum oil thickness detection limit appears to be roughly 2 cm.
In both field tests, the GPR was also tested in an aerial configuration and was able to detect oil on
frozen ground under snow and oil encapsulated in or under fresh ice. The GPR is good at detecting oil
in and under first year ice with relatively even top and bottom surfaces. Detecting oil thru multi-year
ice or rafter/ridged first year ice is expected to be difficult because of the voids and jumbled blocks of
rough ice.
In February 2008, A GPR training class was conducted in Prudhoe Bay, AK with scientists and
technicians from Alaska Clean Seas (ACS). ACS has an operational GPR system and have conducted
training classes in its operation. They now have a core of trained responders familiar in using the GPR.
The intent is to continue further research to understand the capabilities of the GPR under different
snow, ice and oil conditions throughout the winter season. This development work is designed to create
the basic knowledge base that will result in further operational tools based on GPR technology. The
final report has been accepted by MMS. This project is complete.
Reports Evaluation of Higher-Powered Airborne Radar Systems to Detect Oil Under Ice and Snow – Scenario
Descriptions, D. Dickins and J. Bradford, DF Dickins and Associates and Boise State University, 8 pp.,
August 17, 2007.
Summary of Search results on Airborne Radar Systems with an Operating Frequency Range of
500MHz to 1GHz, D. Dickins and J. Bradford, DF Dickins and Associates and Boise State University,
September 14, 2007.
Appendix A
NRT Science & Technology Committee Report 2008 A-69
Detection of Oil on and Under Ice: Phase III - Evaluation of Airborne Radar System Capabilities in
Selected Arctic Spill Scenarios, D. Dickins, DF Dickins and Associates and Dr. J. Bradford, Boise
State University, 55 pp. July 2008.
Key Word Arctic, Ground Penetrating Radar, Svalbard
Subject Development of a Portable Multispectral Aerial Sensor for Real-time Oil Spill
Thickness Mapping in Coastal and Offshore Waters Principal Investigator Minerals Management Service
Contracting Agency December 2008
Estimated Completion Completed report available on website www.crrc.unh.edu
Description or
Abstract
This research project will develop a portable, easy-to-operate, aerial sensor to detect and accurately
map the thickness and distribution of an oil slick in coastal and offshore waters in real-time. Building
on previous research the technical plan, consisting of five phases will lead to the deployment of an
operational system estimated to be completed with 18 months. The five phases are:
1. Addition and testing of infra-red camera to the detection system.
2. Refinement and implementation of the neural network and fuzzy ratio-based oil discrimination
software.
3. Addition of Inertial Measurement Unit and testing/validation of real-time auto geo-referencing
capabilities.
4. Ohmsett infra-red and full-system validation experiments.
5. Integration of full-system and implementation of near-real-time analysis discrimination
capabilities.
This project includes five separate over-flights over the Santa Barbara Channel oil seeps and the
Ohmsett facility for sensor and algorithm verification and ground-truthing. This project is co funded
with the California Department of Fish and Game, Oil Spill Prevention and Response.
http://www.mms.gov/tarprojects/594.htm.
Progress The infra-red camera (IR) and GIS compatible software were received in late September 2007. The
Appendix A
NRT Science & Technology Committee Report 2008 A-70
camera is being integrated into the detection system and initial test flights of the system will be
conducted over the Santa Barbara Channel oil seeps in late October 2007. The Oil Thickness
Algorithm Refinement work is being undertaken simultaneously with the IR camera integration.
Laboratory experiments and aerial flights were conducted. Two significant improvements to the system
were achieved. First, a new wavelength (577 nm) was chosen to provide the greatest thickness
distinction range of ratios. Second. When the 577nm band is used in conjunction with the 551nm band
it provides additional information to the algorithm to adjust the thickness model for different
background water reflectance characteristics. The addition of the IR camera will extend the available
thickness measurement range. The thickness sensor system was successfully flight tested in day/night
operations over the Ohmsett facility from June 16-20, 2008 and during over flights of the Santa
Barbara oil seeps in November 2008 to verify total system integration.
Reports
Key Word Remote Sensing, Multispectral sensor, Ohmsett
Subject Field Verification of SINAP Oil Spill Fate and Transport Modeling and Linking
CODAR Observation Systems Data with SINAP Predictions Principal Investigator James R. Payne, Ph.D. (Payne Environmental Consultants, Inc.)
Deborah French-McCay, Ph.D. (Applied Science Associates, Incorporated) Walter Nordhausen, Ph.D.
(Office of Spill Prevention and Response, CA Department of Fish and Game) Eric Terrill, Ph.D.
(Marine Physical Laboratory, Scripps Institution of Oceanography)
Contracting Agency UNH/NOAA: Coastal Response Research Center (CRRC)
Estimated Completion Completed report available on website www.crrc.unh.edu
Description or
Abstract
Oil-spill fate and transport modeling is currently being used by CA OSPR to develop the time and
spatial scales, and equipment needs for a formal Dispersed Oil Monitoring Plan (DOMP) to document
hydrocarbon water column concentrations, potentially exposed organisms (zooplankton), and the
impacts of oil spills with and without use of dispersants. These measurements are essential to the
evaluation of environmental trade-offs justified as a decision to use dispersants under certain
circumstances. Natural Resource Damage Assessment (NRDA) will be absent critical quantitative and
qualitative information without a sound and pre-planned methodology for collection of water column
Appendix A
NRT Science & Technology Committee Report 2008 A-71
data. CA OSPR is funding a limited field experiment with SIO to develop and test the operational
framework for repeated sampling of dispersed oil plumes as outlined in the DOMP, and this proposed
project is designed to augment that effort and allow measurements of horizontal and vertical
diffusivities, evaluation of CODAR for providing surface current input data to oil spill models such as
SIMAP, and verification of SIMAP-predicted movement of subsurface oil (dye) by comparison to
drogue movement and measured dye concentrations over three dimensions and time.
Subsurface drogues and dye transport will be used to verify the surface current field measured using
CODAR. Efforts are currently underway to assess the limitations of HF radar derived current velocities
in the San Diego region, and the data collected by the proposed work will be used to further assess
system performance, including differences between measured and computed trajectories. A Seabird
CTD (provided by SIO) will be deployed from a small vessel in the study region to determine the
mixed layer depth, an important variable in dispersant monitoring. In addition, subsurface dye-plume
structure will be mapped using SIO’s towed MiniBAT submersible system equipped with a
fluorometer. Data from the system are displayed in real-time on deck so that adjustments can be made
to the MiniBAT’s flight path. By flying the MiniBAT in an undulating mode and driving the boat in a
grid pattern, the plume can be mapped and tracked to follow its evolution in space and time. Evolution
of the plume as a function of time will allow the computation of both horizontal and vertical diffusivity
coefficients on scales that are sub-grid to the CODAR mapped velocities. In addition, discrete water
samples will be collected at several locations/depths in and out of the plume and measured with a
fluorometer onboard the research vessel by OSPR personnel to compare the in situ MiniBAT
measurements with the more traditional SMART protocol utilized by the USCG.
Modeling products include: (1) a fitting algorithm for estimating diffusion coefficients from
conservative tracer concentrations; (2) a fitting algorithm for estimating non-wind-drift currents from
water surface observational current data in rectilinear grid format; (3) integration methods for hindcast
and forecast oil transport models; and (4) quantitative techniques for uncertainty analysis based on
uncertainty in input data and wind drift. The model algorithms and technical direction can be utilized in
NOAA’s, as well as other, oil-spill simulation models with direct applicability to spill response
decision making, net environmental benefit analysis, and educating the spill community and public.
Appendix A
NRT Science & Technology Committee Report 2008 A-72
Progress
Reports
Key Word
Subject Delivery and Quality Assurance of Short-Term Trajectory Forecasts from HF Radar
Observations Principal Investigator Newell Garfield (University of California - Institute for Computational Earth System Science)
Contracting Agency UNH/NOAA: Coastal Response Research Center (CRRC)
Estimated Completion 2009
Description or
Abstract
The project is proposing to develop, assess, and document the use of real-time ocean surface current
maps from high frequency (HF) radar installations. Specifically, we will evaluate the use of these data
in support of oil spill response activities. An extensive test of these capabilities was conducted in
connection with the NOAA Safe Seas 2006 oil spill exercise offshore San Francisco in August, 2006.
We intend to conduct a systematic post-exercise evaluation and to document lessons learned. We also
intend to quantitatively assess the performance of the short-term (24-hour) surface current prediction
methodology that was developed for the Safe Seas 2006 exercise by comparing observed and predicted
currents under a wide range of environmental conditions. To aid that assessment, we will conduct a
multi-day, multi-deployment field experiment using an array of GPS-tracked surface drifters. Finally,
we intend to document our results in the form of a package of recommendations and procedures for the
integration of HF radar-derived products into real-time spill response protocols.
Progress
Reports
Key Word
Appendix A
NRT Science & Technology Committee Report 2008 A-73
SHORELINE ASSESSMENT
Subject A System for Integrated SCAT Data Collection and Management:
eSCAT, SCATdb, and Photologger Principal
Investigator
Jeff Lankford, Ian Zelo, Matt Stumbaugh (NOAA: Office of Response and Restoration)
Contracting
Agency
NOAA: Office of Response and Restoration
Estimated
Completion
Description or
Abstract
During response, oiled shorelines must be surveyed to guide cleanup operations. The Shoreline Cleanup and
Assessment Technique (SCAT) is a standard method for conducting these surveys. Multiple field teams
often conduct SCAT. SCAT surveys quickly produce a large and complex dataset comprised of SCAT
observations, GPS positions, and photographs. In order to guide response decision-making, SCAT field data
must be processed and analyzed in a timely manner. Until recently, SCAT and GPS data were collected on
standardized paper worksheets, transcribed to electronic form, and then incorporated into maps and other
decision-making products. Photographs were not tightly managed alongside SCAT data. Today, with the
emergence of robust handheld computing technology, the deficiencies inherent in paper data collection are
no longer necessary or acceptable. Paper data collection can be slow, error prone, and lacking quality
control and integration with GPS technology. Digital options are available to address all these challenges.
To exploit these potential advantages, the Office of Response and Restoration is developing a field data
collection and management system for SCAT data and photographs which is comprised of: (1) specialized
software for efficient SCAT data collection with GPS-integrated handheld devices, (2) a relational SCAT
database which expedites the synthesis of field data into decision making products, promotes community
standards, and supports standard paper worksheet data collection methods, and (3) an image database which
allows for the processing, documenting, and sharing of large quantities of digital photographs. For this
project, commonly used, readily available, and open-source computing resources were chosen so that end-
users could easily test, adopt, and improve this system.
Appendix A
NRT Science & Technology Committee Report 2008 A-74
Progress
Reports
Key Word
SUBMERGED, SUNKEN & HEAVY OILS
Subject Recovery of Heavy Oil Principal Investigator Kurt Hansen
Contracting Agency USCG Research and Development Center
Estimated Completion 2011
Description or
Abstract
PROBLEM STATEMENT: Existing CG and commercial systems are inadequate for heavy, viscous oil
recovery. This includes both emulsified oils floating on the surface and oils heavier than water that sink to the bottom. Regardless of whether the oil is on the surface, neutrally buoyant in the water column, or sitting on the
bottom, the ability to recover heavy, viscous oil prior to its impact on the coastline remains an elusive capability.
The underwater environment poses major problems including poor visibility, difficulty tracking oil spill movement, colder temperatures, problems with containment methods and technologies, and the electric or
mechanical recovery equipment’s interaction with water. PROJECT OBJECTIVE: The objective is to analyze existing technology and develop products to increase the CG and industry’s efficiency and effectiveness when responding to heavy, viscous oil spills.
Progress A Broad Agency Announcement (BAA) was released on April, 2007 and contracts were awarded to four vendors in the Fall of 2007 for detection technologies. These technologies include sonar, laser fluorosensor, real-
time mass spectrometry and in-situ fluorometry. Tests were conducted on proof-of-concept systems at
OHMSETT and completed in February, 2008. Two vendors were selected for additional development and testing or prototype systems in January 2009; a sonar system and a laser fluorometer system.
Reports
Key Word
Appendix A
NRT Science & Technology Committee Report 2008 A-75
Subject Development of a Predictive Bayesian Data-Derived Multi-Modal Gaussian
Maximum-Likelihood Model of Sunken Oil Mass Principal Investigator James D. Englehardt, Ph.D. (University of Miami)
Contracting Agency UNH/NOAA: Coastal Response Research Center (CRRC)
Estimated Completion 2010
Description or
Abstract
The problem addressed in this proposal is the need for cost-effective tracking of sunken oil following a
spill, to target cleanup activities and to support cleanup termination decisions. Sunken oil is difficult to
“see” because sensing techniques (VSORS, ROVS) show only a small space at a point in time (Beegle-
Krause et al. 2006). Moreover, the oil may re-suspend and sink with changes in salinity, sediment load,
and temperature (Michel 2006), making fate and transport models difficult to deploy and calibrate
when even the presence of sunken oil is difficult to assess. For these reasons, together with the expense
of field data collection, there is a need for a statistical data-limited technique integrating field data
collection with statistical fate and transport modeling. Predictive Bayesian modeling techniques have
been developed and used by the PI to rigorously extrapolate desired information from limited available
data in oil spill planning, hurricane, environmental, health, and safety risk analysis applications. For
example, predictive Bayesian compound Poisson models have been developed for the U.S. Coast
Guard to forecast changes in oil spill volumes (e.g., annual) arriving onshore around the Gulf of
Mexico in response to proposed changes in oil transportation equipment and policies, given spatially-
defined historical oil spill data, shipping routes and volumes, and hydrodynamic modeling results
(Obie and Englehardt 1996; Douligeris et al. 1998). Significant advances in computational techniques
such as Markov chain-Monte Carlo integration have increased the power of such methods further. In
addition, modern genetic and other search algorithms and hardware can be brought to bear on the
estimation of statistical parameters of highly-dimensional models such as may be obtained by
superposition of Lagrangian (e.g., Gaussian) models. However, to our knowledge the approach has not
been applied to the tracking of sunken oil or other pollutants.
The objectives of the proposed two-year project are to (1) compile and summarize data on the
occurrence of sunken oil, directed by the project team including end users and NOAA liaison; (2)
develop one or more superimposed, multi-modal predictive Bayesian Gaussian maximum likelihood
models of sunken oil locations across a bay that will accept spatial field data on sunken oil mass and
Appendix A
NRT Science & Technology Committee Report 2008 A-76
hydrodynamic information from rapidly-deployable models of bottom and subsurface currents, to
project assessments of sunken oil locations in time; and (3) verify the model versus sunken oil data, as
possible, and simulated datasets. The approach is organized into three overlapping tasks: (1)
“Development of conceptual model and data base,” including a team kickoff meeting to identify data
sources and define model capability, (2) “Model development,” including the development of new
genetic and other search algorithms for maximum-likelihood calibration of the model with field data,
and (3) “Model verification, optimization, and dissemination,” including active maintenance of a
project website for information dissemination and model download and training activities as
appropriate. The model(s) developed represent a new approach to oil and pollutant tracking in terms of
the conceptual integration of maximum likelihood and search techniques with Lagrangian pollutant
transport modeling, and the use of predictive (unconditional, marginal) Bayesian models capable of
assessing sunken oil location based on limited available information with rigorous accounting of
uncertainty. It is anticipated that the models developed will interface with current response, cleanup,
and damage assessment models (e.g., GNOME, SIMAP) as appropriate, and be amenable to refinement
and expansion to address a wider range of bathymetric conditions and potential tracking of suspended
oil.
Progress
Reports
Key Word
Subject Investigation of Physical and Chemical Causes of Heavy Oil Submergence Principal Investigator Bruce Hollebone (Environmental Science and Technology Centre)
Contracting Agency UNH/NOAA: Coastal Response Research Center (CRRC)
Estimated Completion 2009
Description or
Abstract
This proposal is derived from the CRRC research needs assessment: Submerged Oil – State of the
Practice and Research Needs. Our objectives are i) to examine the causes and effects of density
changes in heavy petroleum oils that cause just-buoyant oils to become overwashed and sink at sea and
in fresh water, and ii) to examine the physical and chemical causes for refloatation of heavy oils. The
proposed work includes both simulation of spills at the bench-scale and examination of real samples of
submerged oil from spills of opportunity. The factors affecting oil submergence to be considered
Appendix A
NRT Science & Technology Committee Report 2008 A-77
include: temperature, solid-phase uptake, water uptake (and emulsification), evaporation and photo-
oxidation. This work will lead to a better understanding of the micro-changes in oils and their
environments that lead to submergence of oils. This is expected to benefit both the spill modeling and
spill response communities. This proposal aims to directly address the research needs D1 and D3 of the
CRRC needs assessment and to contribute to research needs E1, E7, and E9.
Progress
Reports
Key Word
Appendix B
NRT Science & Technology Committee Report 2008 B-1
Appendix B: Funding Opportunities as of December 2007
Louisiana Applied Oil Spill Research & Development Program (OSRADP) RFP
US Coast Guard (USCG) Broad Agency Announcement (BAA) for Submerged Oil
Coastal Restoration and Enhancement through Science and Technology program
(CREST)
Environmental Protection Agency (EPA) Open Announcements
Cooperative Institute for Coastal and Estuarine Environmental Technology (CICEET)
Oil Spill Recovery Institute (OSRI) Grants
Federal Grants
Minerals Management Service (MMS) Oil Spill Response Research (OSRR) BAA
University of New Hampshire (UNH) Sea Grant
Texas General Land Office (GLO) RFP for Research, Testing, and Development of Oil
Discharge Prevention and Response Technology and Training
PROJECTS FUNDED BY THE COASTAL RESPONSE RESEARCH
CENTER (CRRC) BASED ON 2007 RFPS
“Development of a Predictive Bayesian Data-Derived Multi-Modal Gaussian
Maximum-Likelihood Model of Sunken Oil Mass” J. Englehardt.
“Guidance for Dispersant Decision-Making: Potential for Impacts on Aquatic
Biota” D. French-McCay
“Investigation of Physical and Chemical Causes of Heavy Oil Submergence” B.
Hollebone
“Social disruption from oil spills and spill response: Characterizing effects,
vulnerabilities, and the adequacy of existing data to inform decision-making” T.
Webler
Appendix C
NRT Science & Technology Committee Report 2008 C-1
Appendix C: Scheduled 2008 Research Workshops
Coastal Response Research Center (CRRC) Project Investigator (PI) Research
Symposium (May 29, 2008)
CRRC – Opening the Arctic Seas: Envisioning Disaster and Framing Solutions (March
18-20, 2008)
Appendix D
NRT Science & Technology Committee Report 2008 D-1
Appendix D: Scheduled 2008 Conferences
International Oil Spill Conference - Savannah, GA May 4-8, 2008
Environment Canada's Arctic and Marine Oil-spill Program (AMOP) - Calgary, Alberta,
CA June 3-5, 2008
Clean Gulf - San Antonio, TX October 28-30, 2008
EPA Freshwater Spills Symposium - Spring 2009 (exact date and location
TBD)
Appendix E
NRT Science & Technology Committee Report 2008 E-1
Appendix E: Science & Technology Committee Charter
National Response Team
Science and Technology Committee Charter
Mission Statement
Encouraging science and technology in support of response
Scope As an entity of the National Response Team (NRT), the S&T Committee serves as a
technical support to the NRT on issues relating to oil and hazardous substances releases;
on-going, past and proposed research; developments in technology and recommendations
for future national research and development.
Objectives
1. The Science and Technology Committee strives to be the information nexus
for national and international oil and/or hazardous substances release-
related technical advancement, including research and development, testing,
and evaluation activities.
2. The Science and Technology Committee will support the National Response
Team through monitoring oil and/or hazardous substances release -related
research and development, testing, and evaluation activities of NRT agencies
to enhance coordination, avoid duplication of effort, and encourage research
in support of response activities.
3. The Science and Technology Committee will encourage the application of
new sciences and technologies for response to oil and/or hazardous
substances releases under operational conditions in order to assess
effectiveness.
S&T Committee Products
Annual Report to the NRT The S&T Committee will produce an annual report to the NRT cataloguing
developments in research on oil and chemical spill response technologies. This
Appendix E
NRT Science & Technology Committee Report 2008 E-2
report will be presented to the NRT by the Chair of the S&T Committee at the
annual NRT/RRT Co-Chairs meeting or on a schedule determined by the NRT.
In addition to an inventory of on-going research, the S&T Committee will suggest
future research directions and identify redundancies in research. The annual
report will include:
1) Research Catalogue
As research and development on oil and hazardous substance response is
extensive, diverse in type and scope, and global in effort, the S&T Committee will
collect and distribute information relating to these efforts with the goal of sharing
research activity nationally and internationally through the National Response
Team.
2) Field Applications
As new approaches to the response of oil and hazardous substance releases
are developed, the Science and Technology Committee will encourage the trial of
these approaches under operational conditions. Results will be reported to the
NRT through the annual report or more frequently, if necessary.
NRT Action Proposals The NRT may request assistance from the S&T Committee on specific projects
(or is it on a request for assistance on specific action proposals?). RRT-specific
proposals will be reviewed by the NRT, prioritized, and if appropriate will be
passed to the S&T Committee for action. The S&T Committee will review all
action proposals from the NRT in order to ensure that adequate measures have
been taken to “enhance coordination, avoid duplication of effort, and encourage
research in support of response activities” (40 CFR 300.110 (h) (5)). As requested, and
in absence of existing or current products, the S&T Committee will act to address
the proposal directly through their member agencies.
S&T Committee Action Proposals While it is not in the purview of the S&T Committee to present action proposals
to the body to which it reports, member agencies and organizations may wish to
engage the S&T Committee. The member agency or organization should present a
proposal directly to the NRT, for consideration and possible action by the S&T,
upon request of the NRT.
Meetings
The S&T Committee will meet in-person or via conference call once per month. The
standing agenda will include:
Agency Reports
o current activities and research
Appendix E
NRT Science & Technology Committee Report 2008 E-3
o past and upcoming events of interest
o new developments in research activities
Status reports on outstanding projects for the NRT
Outreach Report
o Discussion of activities and research developing outside the membership
of S&T Committee (e.g.: Environment Canada, SINTEF)
Annual Work Plan Progress Report
o Annual Report
o Field Trial
At least quarterly, the chair of the Committee or a representative will report, in-person, to
the NRT on S&T Committee activities.
Guiding Language
The National Response Team
“The U.S. National Response Team (NRT) is an organization of 16 Federal
departments and agencies responsible for coordinating emergency preparedness
and response to oil and hazardous substance pollution incidents. The Environment
Protection Agency (EPA) and the U.S. Coast Guard (USCG) serve as Chair and
Vice Chair respectively. The National Oil and Hazardous Substances Pollution
Contingency Plan (NCP) and the Code of Federal Regulations (40 CFR part 300)
outline the role of the NRT and Regional Response Teams (RRTs). The response
teams are also cited in various federal statutes, including Superfund Amendments
and Reauthorization Act (SARA) – Title III and the Hazardous Materials
Transportation Act [HMTA].” (Reference: www.NRT.org)
The Science & Technology Committee
“The Science and Technology Committee provides a forum for the NRT to fulfill
its NCP delegated responsibilities in research and development. Specifically, NCP
regulation 40 CFR 300.110(g) (sic: actually it is 40 CFR 300.110.h.5) lists as one
of the NRT's responsibilities „Monitoring response-related research and
development, testing, and evaluation activities of NRT agencies to enhance
coordination, avoid duplication of effort, and encourage research in support of
response activities;‟ Additionally, 40 CFR 300.110(g) states, "The NRT may
consider and make recommendations to appropriate agencies on [the training,
equipping, and protection of response teams and] necessary research,
development, demonstration, and evaluation to improve response capabilities." (Reference: www.NRT.org)
40 CFR 300.110 (g)
“The NRT may consider and make recommendations to appropriate agencies on the training,
Appendix E
NRT Science & Technology Committee Report 2008 E-4
equipping, and protection of response teams and necessary research, development, demonstration, and evaluation to improve response capabilities.” 40 CFR 300.110 (h) (5) “Monitoring response-related research and development, testing, and evaluation activities of NRT
agencies to enhance coordination, avoid duplication of effort, and facilitate research in support of response activities;”
Appendix F
NRT Science & Technology Committee Report 2008 F-1
Appendix F: Science & Technology Committee 2008 Work Plan
National Response Team
Science and Technology Committee
Annual Work Plan 2008
Project Name S&T Committee’s Annual Report to the NRT Project Description The S&T Committee will produce an annual report to the NRT cataloguing developments in
research on oil and chemical spill response technologies. This report will be presented to the NRT
by the Chair of the S&T Committee at the annual NRT/RRT Co-Chairs meeting or on a schedule
determined by the NRT Chairman. In addition to an inventory of on-going research, the S&T
Committee will suggest future research directions and identify redundancies in research
Staffing/Lead Lead: NOAA (Steve Lehmann, chairman)
Deliverable Report
Schedule March 2009
Project Name Response Research Clearinghouse - Design & Feasibility Study
Appendix F
NRT Science & Technology Committee Report 2008 F-2
Project Description Development of an interactive, web-based clearinghouse designed to share information relating to
current work toward the advancement of techniques, technology and science in the field of oil and
hazardous substance response, remediation and restoration. The specific objectives of the
clearinghouse are:
to share information related to proposed and ongoing investigation and development activities
designed to improve response and/or restoration capabilities including: scientific research,
new operational methods and techniques, new software and hardware in the U.S. and
internationally, both within governmental and non-governmental institutions.
to develop a non-proprietary communication forum aimed at improving discussion between
researchers, product developers, end-users and regulators.
to maintain a central point of contact for the state-of-the-art and advancement in this industry.
to both reduce redundancies in research and leverage related projects.
to increase the likelihood that new technologies, techniques and products can be operationally
evaluated at so-called “spills of opportunity” by increasing exposure of to responders and
decision-makers.
Staffing/Lead Lead: NOAA (Steve Lehmann, chairman)
Deliverables The deliverable will be a web-based system and a plan for the continued development and
maintenance of the site, outreach to researchers, etc.
Schedule 2008: Design & Feasibilty Study
2009: Implementation of site
Project Name “Selection Guide for Oil Spill Applied Technologies” Field Test Report Project Description A one year field test of the “Selection Guide for Oil Spill Applied Technologies” was assigned to
the S&T Comm. in 2001 by the NRT. Members of the Science and Technology Committee
designed and distributed an evaluation form for the Guide and made presentations on the field test
at the 2002 Co-Chairs meeting, the FreshWater Spills Symposium, the EPA On-Scene
Coordinators training, the API Oil Spill Technical Working Group and the Spills Advisory Group,
and the NOAA SSC’s meeting, as well as initiating a story on the Selection Guide in the Oil Spill
Intelligence Report . The S&T Comm. has yet to report findings. The data collected from this
Appendix F
NRT Science & Technology Committee Report 2008 F-3
effort must be re-examined and reported to the NRT and, if necessary, data will be re-collected.
Coordination with the Response Committee is sought for this project.
Staffing/Lead Lead: NOAA (Steve Lehmann, chairman)
Deliverables Report to the NRT, recommendations
Schedule Through 2009
Project Name Selection Guide Review & Update Project Description Volume One of the “Job Aids for Spill Countermeasures Technologies” (aka: The Selection
Guide) has not been reviewed or updated since its release by RRTs 3 and 4. Since that time,
however, the guide has been officially or unofficially adopted by many RRTs and FOSC regions.
The S&T Committee will form both a working group and an advisory board for the purpose of
review, update and maintenance of this document at a national, rather than regional, level. The
Advisory Board will be made up of RRT representatives (one per RRT region) and will assist in
directional changes for the Guide (if necessary) and liaison with the RRTs.
Note: the preceding project “’Selection Guide for Oil Spill Applied Technologies’” Field Test
Report” will likely be incorporated into this project.
Staffing/Lead Lead: TBD, pro tem: NOAA (Steve Lehmann, chairman),
Deliverables Updated Selection Guide, annual maintenance plan
Schedule To Be Determined, highly dependent on staff availability.