water quality sensors - acwi

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Water Quality Sensors Where are we, where are we going, and why aren’t we there yet? Mario Tamburri University of Maryland Center for Environmental Science

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Page 1: Water Quality Sensors - ACWI

Water Quality SensorsWhere are we, where are we going, and why aren’t we there yet?

Mario TamburriUniversity of MarylandCenter for Environmental Science

Page 2: Water Quality Sensors - ACWI

Transition emerging technologies to operational use rapidly and effectively

Maintain a dialogue among technology users, developers, and providers Identify technology needs and novel technologies Document technology performance and potential Provide information required by IOOS for the deployment of accurate,

reliable and cost-effective observing networks

ACT Priorities

A third-party testbed for evaluating technologies A forum for capacity and consensus building An information clearinghouse for environmental technologies

ACT Services

Alliance for Coastal Technologies

Page 3: Water Quality Sensors - ACWI

Generic Testing Approach

Types of Evaluations: • Performance Verification • Performance Demonstration

Purpose: • Document performance under third party tests• NO certifications, recommendations, or comparisons

Benefits: • Community engagement• Enhanced ability to identify appropriate technologies• Level playing field among manufacturers• Accelerated adoption of innovative technologies

Credibility: • Objective testing• Skilled, trained personnel• Sound methodologies with statistical rigor• Transparency and comprehensive documentation• Rigorous QA/QC

Page 4: Water Quality Sensors - ACWI

ACT Partner Institutions

University of MichiganCooperative Institute forLimnology & Ecosystems Research

Moss Landing Marine Laboratories

Arctic

Pacific

Great Lakes

Atlantic

GulfTropical

Page 5: Water Quality Sensors - ACWI

Diverse Environments & Applications

Page 6: Water Quality Sensors - ACWI

Technology theme is selected by Partners and Stakeholders

Customer Needs and Use Assessment to identify

parameters and applications

Technology Subcommittee established

RFT is drafted and released

Initial applications submitted

Conditional acceptance granted

Partner Technology Workshop held

Protocol Workshop held (weekly conference calls)

Signed agreements submitted and insurance secured

Instruments set up, calibrated and deployed atfour field sites

Instruments set up, calibrated and deployed atfour field sites

Data downloaded, analyzed and plotted

Verification Statements drafted

Field audits conducted and weekly data sheets sent to

Headquarters

Generic Testing ProcessFull information packages and propose protocols submitted

Strawman Protocols distributed

Protocol and QA Planreviewed and finalized

Test instruments are shipped to lab test site

Standardization and training session held and recorded

Laboratory tests conducted(lab audit)

Instruments sent back for reconditioning/recalibration

Post Evaluation meeting and review held

Verification Statements finalized and sent to

manufacturers

One page manufacturer interpretation of results

submitted

Questions/comments addressed and

manufacturers monitored for use of results

Verification Statements released to the public

Instrument user survey for manufacturers completed

Page 7: Water Quality Sensors - ACWI

Sensors – Where are we? DO Sensors (2004) - Aanderaa (optode), Greenspan

(galvanic cell), In-Situ (optode), YSI (Clark cell)

Chl-a Fluorometers (2005) - bbe Moldaenke, Chelsea (2), Hydrolab, Turner (2), WET Labs, YSI

Turbidity Sensors (2006) - Aquatec, In-Situ, McVan, WET Labs, YSI

Nutrient Analyzers (2007) - American EcoTech, Satlantic, WET Labs, YSI

C-T Sensors for In Situ Salinity (2008) - Aanderaa, Campbell, Falmouth, Greenspan, In-Situ, RBR, Rockland, YSI

pCO2 Analyzers (2009/2010) - Contros, NOAA/PMEL (Battelle), Pro-Oceanus, Sunburst, YSI

Hydrocarbon Sensors (2011) - Aquatec, Chelsea (3), Hach, S:can, Turner Designs, and WET Labs

pH Sensors (2012) - Aanderaa, Campbell, Idronaut, In-Situ, Satlantic, Sunburst, YSI

Page 8: Water Quality Sensors - ACWI

Transitioning into operations

0

0.5

1

1.5

2

2.5

3

10/1 10/3 10/5 10/7 10/9 10/11 10/13 10/15 10/17 10/19 10/21 10/23 10/25 10/27

Time

Nitr

ate+

Nitr

ite (m

gN/L

)

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

9/30 10/5 10/10 10/15 10/20 10/25 10/30

Time

Phos

phat

e-P

(uM

)Nutrients Performance Demonstrations

Page 9: Water Quality Sensors - ACWI

Salinity Performance VerificationsMature ≠ reliable/accurate

Page 10: Water Quality Sensors - ACWI

pCO2 is important but complex

pCO2 Performance Demonstrations

Page 11: Water Quality Sensors - ACWI

Hydrocarbon Performance VerificationAre fluorometers the way to monitor of oil spills?

Page 12: Water Quality Sensors - ACWI

ACT Program Evaluation – Where are we?

Page 13: Water Quality Sensors - ACWI

ACT Program Evaluation – Where are we?

Technology Developers &

Providers

Technology

Users

Tech Info Providers

Private Public Resource Mgrs

Private Corps

Research Scientists

Relevancy Credibility, Objectivity Quality, Competency Usefulness  

100% > 75% > 50% < 50%  

Page 14: Water Quality Sensors - ACWI

ACT Program Evaluation – Where are we going?

Current Activities Current Activities

Potential ActivitiesPotential Activities

Selection of ThemesSelection of Themes

Technology Database

Technology Database

Technology Workshop

Technology Workshop

Needs and Use Assessments

Needs and Use Assessments

Capabilities AssessmentsCapabilities

Assessments

Design Requirements

Design Requirements

Technology Evaluations Technology Evaluations

Technology Training Technology Training

Subject Matter Clearinghouse Subject Matter Clearinghouse

Standard Operating Procedures

Standard Operating Procedures

Operational Deployment Testing

Operational Deployment Testing

Page 15: Water Quality Sensors - ACWI

Why aren’t we there yet?

ACT HeadquartersOne Williams StreetSolomons, MD 20688(410) [email protected]

www.act-us.info

Limited resources

Different requirements for different users

Parameters and technologies are complex

Nice to have but not must have