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Observing System Evaluation - TT (OSEval-TT)

OSEImpact of Argo, SST and altimeter data on an eddy-resolving reanalysis (Oke, P. R., and A. Schiller, 2007, Geophys. Res. Lett., 34, L19601, doi:10.1029/2007GL031549)


Task Team Mission

One of the aims of the GODAE OceanView Observing System Evaluation Task Team (OSEval-TT) is to formulate more specific requirements for ocean observations on the basis of improved understanding of data utility.

The OSEval-TT is jointly formed by GODAE OceanView and the Ocean Observation Panel for Climate (OOPC). Through the task team, GODAE OceanView and OOPC partners will get organized at the international level to provide evidence-based responses to agencies and organizations in charge of sustaining the global and regional ocean observing systems used for ocean monitoring and forecasting at short-range, seasonal and decadal time-scales.

This activity requires consistent protocols for observation impact assessment, tools for routine production of appropriate diagnostics, common sets of metrics for inter-comparison of results, and objective methodologies for observing system design and assessment activities.


Further information can be found here:




Task team meetings:

Joint GOV-GSOP Workshop 2011 (Santa Cruz)

Joint GOV-GSOP Meeting 2014 (Toulouse)

Joint DA-TT/OSEval-TT meeting 2017 (La Spezia)


Documents and presentations:

→ Presentation - Observing System Evaluation Studies and OceanPredict, Woods Hole, GSOP10, 5-6 Feb 2019 (Yosuke Fujii, MRI-JMA)

→ Example of Observation Impact Statement Report (Met Office Technical report, Dan Lea)


Publications (updated Aug 2018)


The OSEval-TT is currently coordinated and led by two co-chairs, Peter Oke, CSIRO, Australia and Gilles Larnicol, CLS, France, who will step down in the near future.

The new co-chairs of the OSEval-TT will be Elisabeth Remy, Mercator Ocean and Yosuke Fujii, MRI-JMA.

Their contact information can be found on the Contacts page.