Transcript Slide 1

GODAE OceanView:
Task Teams and International
Relationships
Andreas Schiller, Eric Dombrowsky and Kirsten Wilmer-Becker
with input from Co-Chairs of Task Teams
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First GODAE OceanView Science Team Meeting, Mercator-Ocean, Toulouse, 8-10 June 2009
Content
• Background
• GODAE OceanView:
International Relationships
• GODAE OceanView Task Teams:
Objectives and International Relationships
• Summary
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First GODAE OceanView Science Team Meeting, Mercator-Ocean, Toulouse, 8-10 June 2009
GODAE OceanView Science Team
• CORE ACTIVITIES: A forum where the main operational
and research institutions involved in global ocean analysis
and forecasting develop collaborations and international
coordination.
• TASK TEAMS: These teams will address specific topics of
particular importance to GODAE OceanView that require
collaboration with international research programs (e.g.
OOPC, CLIVAR, IMBER, SOLAS, WCRP) or other groups
(e.g. coastal community).
• ET-OOFS: Operational aspects related to product
harmonization and standardization will be carried out by
the JCOMM ET-OOFS.
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First GODAE OceanView Science Team Meeting, Mercator-Ocean, Toulouse, 8-10 June 2009
Draft ToRs of GODAE
OceanView Science Team
• 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 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
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interested in, GODAE OceanView
First GODAE OceanView Science Team Meeting, Mercator-Ocean, Toulouse, 8-10 June 2009
GODAE OceanView:
International Relationships
To coordinate and foster international collaboration
in ocean research aimed at improving and extending
capabilities of ocean forecasting and analysis systems
for operational and research applications
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First GODAE OceanView Science Team Meeting, Mercator-Ocean, Toulouse, 8-10 June 2009
GODAE OceanView:
Existing International Relationships
Scientific Groups, Internat. Programs and National Agencies:
• Argo
• GOOS, GCOS, OOPC
• GHRSST
• IOC/JCOMM
• OSTST
• CEOS
• CLIVAR-GSOP
• NASA
• IMBER
• NOAA
• GEOTRACES
• ESA
• SOLAS
• EUMETSAT
• HYCOM
• MyOcean
• ECMWF
First GODAE OceanView Science Team Meeting, Mercator-Ocean, Toulouse, 8-10 June 2009
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(Initial) Task Teams
• Intercomparison and Validation [Fabrice Hernandez & Matthew Martin]
– Assess the performance, quality and consistency of ocean forecasting
and analysis systems.
• Observing System Evaluation [Peter Oke & Gilles Larnicol]
– Assess the impact of observations on forecasts and analyses and
improving the design of the global ocean observing system. (includes
developing new approaches).
• Coastal Ocean and Shelf Seas [Pierre DeMey & Villy Kourafalou]
– Assessing and demonstrating 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).
• Marine Ecosystem Analysis and Prediction Task Team [Pierre Brasseur
& Nicolas Gruber]
– Developing new strategies for the design and exploitation of analysis and
forecasting systems for ecosystem applications.
• Others to be explored, e.g. coupled data assimilation – NWP community
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First GODAE OceanView Science Team Meeting, Mercator-Ocean, Toulouse, 8-10 June 2009
Intercomparison and Validation
• 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 intercomparison 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.
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First GODAE OceanView Science Team Meeting, Mercator-Ocean, Toulouse, 8-10 June 2009
Intercomparison and Validation
During IGST-XII (2007) it has been agreed to perform a demonstration
of intercomparison among GODAE partners:
The main objectives were
– to demonstrate operational ocean systems in action
– to assess the quality of hindcast ocean products
– to perform intercomparisons among the different operational
centers
– to promote validation and intercomparison as part of future
"ensemble multi model forecast" applications.
Intercomparison exercise, in real time, during the Feb-April 2008, 3
months period. Assessment relied on Class 1 and Class 2 metrics that
were made available by each partner.
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First GODAE OceanView Science Team Meeting, Mercator-Ocean, Toulouse, 8-10 June 2009
Observing System Evaluation
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
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First GODAE OceanView Science Team Meeting, Mercator-Ocean, Toulouse, 8-10 June 2009
Observing System Evaluation
OSEs and OSSEs ctd.:
• Get the most out of observations:
- over- or under-fitting observations
- system comparisons
- information content of observations
- refined obs-error/length-scale estimate
- better assimilation procedures
- identify instrument errors
• GODAE OceanView OSE Workshop (4-5 June 2009):
“Towards Routine Monitoring”
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First GODAE OceanView Science Team Meeting, Mercator-Ocean, Toulouse, 8-10 June 2009
Coastal Ocean and Shelf
Seas Task Team
• Mission of the Coastal and Shelf Seas Working Group (CSSWG, 20062008): 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
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- Status: proposal by Pierre DeMey; under internal review
First GODAE OceanView Science Team Meeting, Mercator-Ocean, Toulouse, 8-10 June 2009
Coastal Ocean and Shelf
Seas Task Team
• Mission of the Coastal and Shelf Seas Working Group (CSSWG, 20062008): 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 (proposal by DeMey et al.): an initiative for science and
training towards sustainable multidisciplinary downscaling and
forecasting activities in the world coastal oceans
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First GODAE OceanView Science Team Meeting, Mercator-Ocean, Toulouse, 8-10 June 2009
Marine Ecosystem Analysis
and Prediction Task Team
• Established in June 2007.
• Objectives of the MEAP-TT:
(Incl. former IMBER-GODAE WG)
(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.
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First GODAE OceanView Science Team Meeting, Mercator-Ocean, Toulouse, 8-10 June 2009
Marine Ecosystem Analysis
and Prediction Task Team
So far has focused on 3 key areas:
– (i) develop applications of GODAE products to ecosystem and
biogeochemistry projects.
– (ii) specify requirements to integrate biogeochemistry and
ecology into ocean data assimilation systems (e.g. need for
improved representation of upper ocean processes such as turbulent
mixing and vertical advection).
– (iii) design and improve the observing system for marine
ecosystems and biogeochemistry
– Key findings and conclusions in a synthesis paper (Brasseur et al.,
2009) and presented at 2008 GODAE Symposium.
2009:
• Revisit IMBER-GODAE working plan proposed in 2007, taking into
account the recommendations of the IGST, GOVST and ISSC.
• Organize second joint IMBER-GODAE OceanView workshop in
early 2010 in order to review the progress made and elaborate a more
structured framework of activities until 2013.
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First GODAE OceanView Science Team Meeting, Mercator-Ocean, Toulouse, 8-10 June 2009
Summary: GOVST, Task Ts
and Links to Other Programs
GODAE OceanView
JCOMM, ET-OOFS, CLIVARGSOP, 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
Coupled Modelling?
CAS-WGNE
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First GODAE OceanView Science Team Meeting, Mercator-Ocean, Toulouse, 8-10 June 2009
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First GODAE OceanView Science Team Meeting, Mercator-Ocean, Toulouse, 8-10 June 2009
Evolution of GODAE Systems
• Most GODAE groups have or are now transitioning
towards operational or pre-operational status.
• GODAE systems need continuous improvements and
should benefit from scientific & technological advances
in data processing, data serving, modeling and data
assimilation (incl. evolution of the observing system).
• GODAE systems are also evolving to satisfy new
requirements (e.g. coastal zone and ecosystem
monitoring and forecasting, climate monitoring and
reanalysis).
• Challenges require international collaboration and
cooperation
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First GODAE OceanView Science Team Meeting, Mercator-Ocean, Toulouse, 8-10 June 2009
New Societal Demands
• Integrated descriptions of ocean state and
characterisation & detection of climate change in the
ocean
• Forecasting in shelf-seas & coastal waters
• Monitoring and management of the marine environment
(including biogeochemistry & ecosystems)
• Development of improved weather & climate
predictions (near coasts, weather, tropical cyclones,
monsoons, seasonal and decadal predictions)
• Assessments of uncertainty in downscaling climate
change predictions to coastal regions
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First GODAE OceanView Science Team Meeting, Mercator-Ocean, Toulouse, 8-10 June 2009
GODAE OceanView Objectives
The primary purpose of GODAE OceanView is to accelerate
the improvement and exploitation of real-time operational
ocean forecasts, hindcasts and reanalysis through
exchange of information and expertise and the coordination
of joint assessments.
The activities which the GODAE OceanView Science Team
will focus on are:
- assessments of the performance of and development of
improvements to the components of the forecasting systems
- initiatives aiming to exploit the forecasting systems for greater
societal benefit
- evaluations of the dependence of the forecasting systems and
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societal benefits on the components of the observation system
First GODAE OceanView Science Team Meeting, Mercator-Ocean, Toulouse, 8-10 June 2009
Global Ocean Data
Assimilation Experiment
Objective: To provide a practical demonstration of real-time
operational global oceanography
• Regular comprehensive description of the ocean circulation at high
temporal and spatial resolution
• Consistent with a suite of remote and in-situ measurements and
appropriate dynamical and physical constraints
Includes the main operational or research institutions from
Australia, Japan, the United States, the United Kingdom, France,
Norway, Europe, Canada, China
Time Table
Conceptual development : 1998-2000
Prototype development : 2000-2003
Main demonstration and consolidation phase: 2004-2008
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First GODAE OceanView Science Team Meeting, Mercator-Ocean, Toulouse, 8-10 June 2009
GODAE Achievements and Successes
• Implementation of observing and data processing systems
• Argo and GHRSST-PP (pilot projects), altimetry, in-situ
• Implementation of global modelling and data assimilation
capabilities (high resolution and climate)
• Implementation of data and product serving capabilities and
standardization
• Intercomparison / validation, metrics and standardization
• Demonstrations of feasibility and utility
• Mesoscale nowcasting and forecasting, ocean climate and
research, marine pollution and safety, weather forecasting,
marine resources, etc
• Scientific advances
• Modelling, data assimilation, scientific validation
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First GODAE OceanView Science Team Meeting, Mercator-Ocean, Toulouse, 8-10 June 2009