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Proceedings of OceanObs'09: Sustained Ocean Observations and Information for Society

COMMUNITY WHITE PAPER10.5270/OceanObs09.cwp.67

Observational Requirements of GODAE Systems

Peter R. Oke(1), Magdalena A. Balmaseda(2), Mounir Benkiran(3), James A. Cummings(4), Eric Dombrowsky(3), Yosuke Fujii(5), Stephanie Guinehut(6), Gilles Larnicol(6), Pierre-Yves Le Traon(7), Matthew J. Martin(8)

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Global ocean forecast systems, developed under the Global Ocean Data Assimilation Experiment (GODAE), can be used to assess the impact of different components of the Global Ocean Observing System (GOOS). GODAE systems can be exploited to help identify observational gaps and to ultimately improve the efficiency and effectiveness of the GOOS for constraining ocean models for ocean prediction and reanalysis. Many tools are currently being used by the GODAE community to evaluate the GOOS. Observing System Experiments, where different components of the GOOS are systematically withheld, can help quantify the extent to which the skill of a model depends on each observation type. Various other techniques, including observing system simulation experiments, adjoint- and ensemble-based approaches, can be used to aid the design and evaluation of ocean observing systems. A suite of examples using these methods to evaluate the GOOS from a GODAE perspective is presented in this paper. Also included in this paper is a proposed plan to move these activities towards routine monitoring of the GOOS using operational GODAE systems.

1CSIRO/CAWCR (Commonwealth Scientific and Industrial Research Organisation/Centre for Australian Weather and Climate Research), GPO Box 1538, Hobart, Tasmania, 7001
2ECMWF (European Centre for Medium-Range Weather Forecasts), Shinfield Park, Reading RG2 9AX United Kingdom
3Mercator Ocean, 8-10 rue Hermès, 31520 Ramonville Saint -Agne, France
4Oceanography Division - NRL (Naval Research Laboratory), Monterey, CA 93943, USA
5MRI (Meteorological Research Institute), 1-1 Nagamine, Tsukuba, Ibaraki, 305-0052, Japan
6CLS (Collecte Localisation Satellites) - Space Oceanography Division, 8-10, rue Hermès, Parc Technologique du Canal, 31520 Ramonville Saint-Agne, France
7IFREMER (French Institute for Exploitation of the Sea/Institut Français de Recherche pour l'Exploitation de la Mer), Technopole de Brest-Iroise, B.P. 70 29280, Plouzané France
8Met Office , FitzRoy Road, Exeter, EX1 3PB, United Kingdom

Correspondence should be addressed to E-mail: peter.oke@csiro.au

This paper shall be cited as:

Oke, P. & Co-Authors (2010). "Observational Requirements of GODAE Systems" in Proceedings of OceanObs’09: Sustained Ocean Observations and Information for Society (Vol. 2), Venice, Italy, 21-25 September 2009, Hall, J., Harrison, D.E. & Stammer, D., Eds., ESA Publication WPP-306, doi:10.5270/OceanObs09.cwp.67

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