jcomm third session, marrakech, 4-11 november 2009 andreas schiller, eric dombrowsky and the godae...

JCOMM Third Session, Marrakech, 4-11 November 2009

Andreas Schiller, Eric Dombrowsky

and the GODAE OceanView Science Team

Scope and ObjectivesScope and Objectivesof GODAE OceanViewof GODAE OceanView

Leading the Scientific Development and Supporting Leading the Scientific Development and Supporting the Implementation of Ocean Forecasting Systems the Implementation of Ocean Forecasting Systems


AcknowledgementsMost of the work presented here is based on• Presentations/proceeding from the GODAE Final Symposium (Nice, Nov 2008),• Oceanography Magazine Special Issue on GODAE (Sep 2009), • The inaugural meeting of the GODAE OceanView Science Team (Toulouse, June 2009)• Oceanobs09 presentations by Pierre-Yves LeTraon and Gary Brassington


Oceanography Special Issueand Oceanobs’09 White Papers


Talk Outline

• GODAE Legacy

• New Challenges

• GODAE OceanView

– Structure

– The Science Team

– GODAE OceanView Task Teams

• Conclusions


Where do we come from ?• GODAE and its International Steering Team (IGST)

– Combining model dynamics and observations to provide an “integrated” description of the ocean state

– A strong, skilled and motivated international group of experts • That have pushed international cooperation, share of knowledge, scientific

results, and ocean products• That have setup coordinated actions, such as the development of GODAE

metrics, intercomparison exercise, …• That have organized events such as summer schools, symposium, and

publication

– Engaged at national level in operational oceanography development, with some decision making authority

• Decision taken within the IGST are implemented in the national systems

– Reporting every year about the progress made• National reports, IGST meetings, …


GODAE Modelling/Forecasting Systems


The GODAE Legacy

• GODAE has contributed to :– Further development of pre-existing operational oceanography

capacities (US-Navy, UKMO, …)

– The emergence of new (pre-) operational capacity (China, Australia, Japan, Canada, Europe…)

– The demonstration of usefulness of some corresponding services (oil spill combat, navy acoustics, search and rescue, ocean climate understanding, …)

– The design and development of a global observing system (ARGO, altimetry, …)

– Demonstrate the feasibility and strength of the integrated approach (from observations to service including forecast, …)


GODAE Achievements and Successes

Implementation of observing and data processing systems• Argo and GHRSST-PP (pilot projects), altimetry, in-situ

Implementation of global modelling & data assim. capabilities• High resolution and climate

Implementation of data/product serving capabilities• Intercomparison / validation, metric and standardisation

Demonstration of feasibility and utility• Mesoscale nowcasting and forecasting, ocean climate research, marine pollution and safety, weather forecasting, marine resources, etc.

Scientific advances• Modelling, data assimilation, scientific validation


Operational Oceanography Applications


Feasibility of Now-/Forecasting of Ocean Mesoscale

Hurlburt et al, 2008, AGU Monograph 177


The Needed Transition

• From GODAE assets, we identified the need for a push forward:– The consolidation of the observing system

infrastructure

– The transition from the demonstration of usefull products to the development of operational services

– Bridging more the technology capabilities (push) with the users needs (pull): accuracy

• Has been presented to, and endorsed by, the GODAE community during the Nice GODAE final symposium in November 2008– GODAE OceanView paper, round table, …


The New Challenges (1/3)Face emerging new societal needs

• Understand/monitor/forecast the earth system from days to decades– Improve atmospheric forecast where the ocean impacts it (cyclones,

monsoons, …)– Application of ocean prediction techniques to improve climate and

decadal prediction including the ocean contribution

• Where (most) people live– Improve near-shore/coastal waters real-time prediction (coupling to and/or

downscaling from the offshore/deep ocean; physics, biogeochmistry)– Understand the impact of climate change in coastal regions (downscaling)

• For the sustained exploitation of the seas– Develop ecosystem-based management of marine living resources

Support environmental policies through environmental monitoring


The New Challenges (2/3)Improve and extend our capacities

• Research and development in ocean modeling, data assimilation

• Coupling with other components of the earth system

• Cooperation with international research programs (e.g. WCRP, IGBP, SCOR)

Improve accuracy of the ocean products


The New Challenges (3/3)Better observe the ocean

• Help the international organizations in charge of the development of the ocean observing systems:

– For the transition to sustained operations of the global in situ and space observing system

• better use of existing systems, such as ARGO, Jason, …

– For the design/assessment of new observing systems• new observable (e.g. bio, …), new focus (e.g. coastal, …)

– For the optimization of the resources• measure the relative impact, assess the utility, etc… through

OSE/OSSE

Evaluate benefit and optimize use of the OOS


To be Achieved by GODAE OceanView

• Improve accuracy and utility of ocean analysis and forecasting products

• Promote the development of downstream use of ocean data and information products from GODAE systems

• Support the transition to operational services Links with JCOMM/ET-OOFS (lead)

• Demonstrate the value of the observing systems

• Coordinate the development of new capabilities and links to other communities (international relationships)

job of task teams


Science Team Terms of Reference• LEAD and MANAGE the execution of the GODAE

OceanView program

• PROMOTE the development of improved capabilities in ocean analysis and forecasting

• DEVELOP collaborations and improved communications between the participants in GODAE OceanView

• EVALUATE scientific and technical developments to optimize the use of knowledge and technology in GODAE OceanView implementation

• REPORT on national activities related to GODAE OceanView. Maintain an up-to-date description of national capabilities related to ocean analysis and forecasting (national reports)

• LIAISE with other international programs of interest to, and interested in, GODAE OceanView


ET-OOFS Terms of Reference• DEVELOP and MAINTAIN 'The Guide to Operational

Oceanographic Forecasting systems of the World“

• PROVIDE ADVICE to JCOMM teams and member states on the application, nomenclature, symbology and standards used by operational ocean forecasting systems

• DEVELOP and OPERATE an inter-comparison framework for near real- time monitoring of OOFS outputs building on the legacy of GODAE

• WORK EFFECTIVELY with the Scientific community developing and maintaining OOFS

• PROVIDE OBSERVATION REQUIREMENTS for OOFS to the JCOMM Observations Program Area

• PROVIDE ADVICE to the JCOMM Data Management Program Areas

• PROVIDE ADVICE to Members/Member States on operational Ocean Forecast systems


GODAE OceanView Structure

Science Team

IntercomparisonAnd validation

Task Team

Observing systems

evaluation Task Team

Coastal oceanand shelf seas

Task Team

Marine ecosystemAnalysis and

prediction Task Team

JCOMM

ET-OOFS Patron’s group


GODAE OceanView:4-Year Work Plan*

• Objective– Develop and implement a 4-year Program with

measurable progress towards the GODAE OceanView objectives by 2013 (work-in-progress).

• Scope– Assess all key activities of GODAE OceanView (incl.

TTs), including but not limited to • scientific progress and excellence: accuracy, publications, …• outreach, media• capacity building and technology transfer: new countries, …• others…

– GOVST to be reviewed in 2013 by, e.g., JCOMM, patrons, users (navies), industry,…

* alignment with JCOMM Sessions


GODAE OceanView Task Teams

• TASK TEAMS address specific topics of particular importance to GODAE OceanView that require collaboration with international research programs or other groups (e.g. coastal community).


TT: Intercomparison and Validation

Objective: Assess the performance, quality and consistency of ocean forecasting and analysis systems.

•Various intercomparison efforts of GODAE products to quantitatively evaluate methodologies to judge strengths and weaknesses of the forecasting systems: e.g. MERSEA, basin-scale intercomparisons etc.

• European MERSEA Project in collaboration with other international GODAE projects has built a common methodology for real-time inter-comparison of forecast systems. Metrics are defined and aim at testing the consistency, quality and performance of each system (Class 1 to 4).

• Requires collaboration between modellers and interactions with user community to agree upon the definition of metrics which will be systematically used for assessing the quality and consistency of system outputs and the sharing of experience through critical analysis of inter-comparison exercises.


Assessment of EKE in NAT

TOPAZ FOAM

HYCOM

C-NOOFS

SURCOUFMercator


TT: Observing System Evaluation

Objective: Assess the impact of observations on forecasts and analyses and improving the design of the global ocean observing system.

GODAE OceanView systems are powerful means to assess• the impact of the global observing system,

• to identify gaps and

• to improve the efficiency/effectiveness of the observing system.

OSEs or OSSEs are• useful tools which have been applied to high-resolution ocean forecasting, seasonal-to-interannual prediction, and climate analysis and reanalysis

• OSEs are flexible tools as they can be used to examine the impact of observations on a particular application (e.g. surface current forecasts for marine safety applications) or to give insight into the effectiveness of the data assimilation systems that are being used


NO ALTIM NO Argo NO SSTNO DATA ALL DATA

Complimentary Data Types

Oke, P. R., and A. Schiller (2007)

No SST

No ALTIM

• 1/10o Bluelink system

• 6-month long OSEs starting December 2005


Objective: Assess and demonstrate the value of GODAE OceanView results for regional, coastal and shelf seas analysis and forecasting systems (includes coupling open ocean/coastal zone; seamless transition from the open sea down to the coastal zone).

• Mission of the Coastal and Shelf Seas Working Group (CSSWG, 2006-2008): demonstrate the value of GODAE results for regional, coastal and shelf seas models and forecasting systems:- examined 40 coastal ocean systems nested in larger-scale systems in many coastal regions of the world ocean. - encouraging results, in particular regarding the suitability of the existing large-scale estimates, scientific quality, demonstrations of utility… A White Paper is available on www.godae.org .

• Coastal ocean forecasting science moves beyond the initial objectives of demonstration of feasibility and utility, to a next-level broader initiative aimed at consolidating its foundation:- ICODAE: an initiative for science and training towards sustainable multidisciplinary downscaling and forecasting activities in the world coastal oceans

TT: Coastal Ocean and Shelf Seas


• 1/12° Northeast Atlantic NEMO configuration (target: 1/36° in MyOcean GMES project)

• Downscaled from MERCATOR GODAE product

Modis no tide

July 2004 tidal mixing fronts: impact on SST (Chanut, MERCATOR)

with tides

Cherbourg SST

Added Value: Tides


TT: Marine Ecosystem Analysis and Prediction

• Established in June 2007.• Objectives of the MEAP-TT:

(i) to foster research on ecosystem modeling and assimilation strategies that are compatible with constraints of operational systems;

(ii) to further assess and demonstrate the value of operational products for marine ecosystem monitoring and prediction; (iii) to expand the concept of the “GODAE metrics” to biogeochemical variables and to develop intercomparison exercises across

international groups; (iv) to identify the essential sets of physical and biogeochemical

observations required to constrain the coupled models and formulate relevant recommendations on these issues; (v) to promote and organize educational activities (summer schools,

training workshops, etc.) aimed at sharing experience between young scientists, operational oceanographers and marine ecosystem

experts. Links with IMBER, GEOTRACES and SOLAS.


AlgaRisk08 project integrates EO with operational model (POLCOMS-ERSEM)

Predictive tool used by Environment Agency to assess prediction of nuisance bloom events on beaches

Daily analysis & 5 day forecast.

Parameters provided: physical: SST, salinity, stratification, currents, PAR, wind, cloud cover.

biogeochemical: phytoplankton biomass, flagellates, dinoflagellates, picoplankton, nutrient ratios.

Boundary conditions from FOAM


New/Pilot Task Teams • Pilot Task Team on High-Res. Coupled Prediction CAS/WGNE

– Coordinate and extend capacity within the meteorological and oceanographic community for coupled high resolution prediction systems

– Exploit high resolution coupled prediction systems to evaluate the impact on atmospheric, wave and ocean prediction, assess the gains relative to less computationally intensive alternatives.

• Pilot Task Team on Forecasting Systems and Models: work-in-progress


Conclusions Major progress over the past 10 years to develop operational oceanography capabilities and to link with applications and services

Integrated approach, international cooperation, sharing of data, knowledge and experience were key elements to the success of GODAE

Operational oceanography systems require and will require continuous improvements (observations, models, data assimilation) to better serve applications

GODAE OceanView continues the science vision of GODAE and supports the transition of mature elements of ocean forecasting to an operational environment (ET-OOFS)

New requirements, new drivers and new opportunities (e.g. environmental policies, climate change, weather forecasting) lead to evolution of modelling and data assimilation systems (e.g. coastal and shelves, ecosystems, ocean/wave/atmosphere coupling) and new requirements for observing systems


Summary: GOVST, Task Teams and Links to Other Programs

GODAE OceanView JCOMM, ET-OOFS, CLIVAR-GSOP, GOOS, CEOS, GCOS

Intercomparison and Validation ET-OOFS, CLIVAR-GSOP

Observing System Evaluation GOOS-OOPC, CLIVAR-GSOP,

Argo, OSTST, GHRSST,ET-OOFS

Coastal Ocean and Shelf Seas GOOS-PICO

Marine Ecosystem Monitoring and Prediction

IMBER, SOLAS, GEOTRACES

High-res. coupled Prediction (PP-TT)

CAS-WGNE, CLIVAR, WGOMD(?)

Forecasting Systems and Models (PP-TT)

CAS-WGNE , CLIVAR, WGOMD(?)


GODAE OceanView:Existing International Relationships

Scientific Groups, Internat. Programs and National Agencies:

• Argo

• GHRSST

• OSTST

• CLIVAR-GSOP

• IMBER

• GEOTRACES

• SOLAS

• HYCOM

• GOOS, GCOS, OOPC

• IOC/JCOMM

• CEOS

• NASA

• NOAA

• ESA

• EUMETSAT

• MyOcean

• ECMWF

jcomm third session, marrakech, 4-11 november 2009 andreas schiller, eric dombrowsky and the godae...

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