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Evaluation of Real Time and Future Global Monitoring and Forecasting Systems at Mercator Océan : Volume 9, Issue 2 (20/03/2012)

By Lellouche, J.-m.

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Book Id: WPLBN0003978876
Format Type: PDF Article :
File Size: Pages 63
Reproduction Date: 2015

Title: Evaluation of Real Time and Future Global Monitoring and Forecasting Systems at Mercator Océan : Volume 9, Issue 2 (20/03/2012)  
Author: Lellouche, J.-m.
Volume: Vol. 9, Issue 2
Language: English
Subject: Science, Ocean, Science
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2012
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Drévillon, M., Drillet, Y., Garric, G., Daudin, A., Tranchant, B., Nicola, C. D.,...Bricaud, C. (2012). Evaluation of Real Time and Future Global Monitoring and Forecasting Systems at Mercator Océan : Volume 9, Issue 2 (20/03/2012). Retrieved from http://worldlibrary.net/


Description
Description: Mercator Océan, 8/10 Rue Hermès, Ramonville Saint Agne, France. Since December 2010, the global analysis and forecast of the MyOcean system consists in the Mercator Océan NEMO global 1/4° configuration with a 1/12° zoom over the Atlantic and Mediterranean Sea. The zoom open boundaries come from the global 1/4° at 20° S and 80° N.

The data assimilation uses a reduced order Kalman filter with a 3-D multivariate modal decomposition of the forecast error. It includes an adaptative error and a localization algorithm. A 3D-Var scheme corrects for the slowly evolving large-scale biases in temperature and salinity.

Altimeter data, satellite temperature and in situ temperature and salinity vertical profiles are jointly assimilated to estimate the initial conditions for the numerical ocean forecasting.

This paper gives a description of the recent systems. The validation procedure is introduced and applied to the current and future systems. This paper shows how the validation impacts on the quality of the systems. It is shown how quality check (in situ, drifters) and data source (satellite temperature) impacts as much as the systems design (model physics and assimilation parameters). The validation demonstrates the accuracy of the MyOcean global products. Their quality is stable in time. The future systems under development still suffer from a drift. This could only be detected with a 5 yr hindcast of the systems. This emphasizes the need for continuous research efforts in the process of building future versions of MyOcean2 forecasting capacities.


Summary
Evaluation of real time and future global monitoring and forecasting systems at Mercator Océan

Excerpt
Antonov, J. I., Locarnini, R. A., Boyer, T. P., Mishonov, A. V., and Garcia, H. E.: World Ocean Atlas 2005, Vol. 2: Salinity, in: NOAA Atlas NESDIS 62, edited by: Levitus, S., US Government Printing Office, Washington, DC, 182 pp., 2006.; Arakawa, A. and Lamb, V. R.: A potential enstrophy and energy conserving scheme for the shallow water equations, Mon. Weather. Rev., 109, 18–36, 1981.; Barnier, B., Madec, G., Penduff, T., Molines, J. M., Treguier, A. M., Le Sommer, J., Beckmann, A., Biastoch, A., Böning, C., Dengg, J., Derval, C., Durand, E., Gulev, S., Remy, E., Talandier, C., Theetten, S., Maltrud, M., McClean, J., and De Cuevas, B.: Impact of partial steps and momentum advection schemes in a global circulation model at eddy permitting resolution, Ocean Dynam., 56, 543–567, 2006.; Benkiran, M. and Greiner, E.: Impact of the incremental analysis updates on a real-time system of the North Atlantic Ocean, J. Atmos. Ocean. Tech., 25, 2055–2073, 2008.; Blanke, B. and Delecluse, P.: Variability of the Tropical Atlantic-Ocean simulated by a general-circulation model with 2 different mixed-layer physics, J. Phys. Oceanogr., 23, 363–1388, 1993.; Bloom, S. C., Takas, L. L., Da Silva, A. M., and Ledvina, D.: Data assimilation using incremental analysis updates, Mon. Weather Rev., 124, 1256–1271, 1996.; Bernie, D. J., Woolnough, S. J., Slingo, J. M., and Guilyardi, E.: Modeling diurnal and intraseasonal variability of the ocean mixed layer, J. Climate, 18, 1190–1202, 2005.; Cabanes, C., Grouazel, A., Von Schuckmann, K., Hamon, M., Turpin, V., Coatanoan, C., Guinehut, S., Boone, C., Ferry, N., Reverdin, G., Pouliquen, S., and Le Traon, P. Y.: The CORA dataset: Validation and Diagnostics of ocean temperature and salinity in situ measurement, Ocean Sci., submitted, 2012.; Chelton, D. B., Wentz, F. J., Gentemann, C. L., De Szoeke, R. A., and Schlax, M. G.: Satellite microwave SST observations of transequatorial tropical instability waves, Geophys. Res. Lett., 27, 1239–1242, 2000.; Chen, J. L., Wilson, C. R., Tapley, B. D., Famiglietti, J. S., and Rodell, M.: Seasonal global mean sea level change from satellite altimeter, GRACE, and geophysical models, J. Geodesy, 79, 532–539, doi:10.1007/s00190-005-0005-9, 2005.; Cravatte, S., Madec, G., Izumo, T., Menkes, C., and Bozec, A.: Progress in the 3-D circulation of the Eastern Equatorial Pacific in a climate, Ocean Model., 17, 28–48, 2007.; Crosnier, L. and Le Provost, C.: Inter-comparing five forecast operational systems in the North Atlantic and Mediterranean basins: the MERSEA-strand1 methodology, J. Marine Syst., 65, 354–375, 2007.; Cummings, J., Bertino, L., Brasseur, P., Fukumori, I., Kamachi, M., Martin, M. J., Mogensen, K., Oke, P., Testut, C. E., Verron, J., and Weaver, A.: Ocean data assimilation systems for GODAE, Oceanography, 22, 6–109, 2009.; Dai, A. and Trenberth, K. E.: Estimates of freshwater discharge from continents: latitudinal and seasonal variations, J

 

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