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

COMMUNITY WHITE PAPER10.5270/OceanObs09.cwp.95

Ocean State Estimation for Global Ocean Monitoring: ENSO and Beyond ENSO

Yan Xue(1), Oscar Alves(2), Magdalena A. Balmaseda(3), Nicolas Ferry(4), Simon Good(5), Ichiro Ishikawa(6), Tong Lee(7), Michael J. McPhaden(8), K. Andrew Peterson(5), Michele Rienecker(9)

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Ocean state estimation, often referred to as Ocean Re-analysis (ORA), is now routinely used for ocean initialization of seasonal forecast models and to monitor the thermal structure in the tropical Pacific. Advanced real-time ocean monitoring tools for ENSO (El Niño/Southern Oscillation) are now also being put in place. These diagnostics could potentially improve operational ENSO monitoring and forecasts by further enhancing our understanding of the physical processes in the evolution of ENSO events. Beyond ENSO, other climate modes of variability that are of societal interest include the Indian Ocean Dipole, Tropical Atlantic Variability, and the Pacific Decadal Oscillation (PDO). Preliminary monitoring tools have also been developed for these modes. The availability of multiple ORAs provides an opportunity to assess uncertainties in the products, to help identify gaps in observing systems as they impact forecasts, identify deficiencies in data assimilation schemes. They also provide the basis for future development of multi-model ensemble monitoring products.

1NOAA/NCEP (National Oceanic and Atmospheric Administration/National Centers for Environmental Prediction), 5200 Auth Road Camp Springs, Maryland 20746 USA
2CAWCR (Centre for Australian Weather and Climate Research), GPO Box 1289, Melbourne, VIC 3001, Australia
3ECMWF (European Centre for Medium-Range Weather Forecasts), Shinfield Park, Reading RG2 9AX United Kingdom
4Mercator-Océan, 8-10 rue Hermès, 31520 Ramonville, St Agne France
5Met Office Hadley Centre, FitzRoy Road, Exeter EX1 3PB, United Kingdom
6Japan Meteorological Agency, 1-3-4 Ootemachi, Chiyoda-ku, Tokyo, 100-8122 Japan
7NASA/JPL (National Aeronautics and Space Administration/Jet Propulsion Laboratory), 4800 Oak Grove Dr.Pasadena, CA 91109, USA
8NOAA/PMEL (National Oceanic and Atmospheric Administration/Pacific Marine Environment Laboratory), 7600 Sand Point Way N.E. Seattle, WA 98115-6349, USA
9NASA/GSFC/GMAO (National Aeronautics and Space Administration/Goddard Space Flight Center/Global Modeling and Assimilation Office), Mail Code 610.1, Greenbelt, MD 20771 USA

Correspondence should be addressed to E-mail: yan.xue@noaa.gov

This paper shall be cited as:

Xue, Y. & Co-Authors (2010). "Ocean State Estimation for Global Ocean Monitoring: ENSO and Beyond ENSO" 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.95

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