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Assimilation of Sla Along Track Observations in the Mediterranean with an Oceanographic Model Forced by Atmospheric Pressure : Volume 8, Issue 5 (18/09/2012)

By Dobricic, S.

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Book Id: WPLBN0004020610
Format Type: PDF Article :
File Size: Pages 9
Reproduction Date: 2015

Title: Assimilation of Sla Along Track Observations in the Mediterranean with an Oceanographic Model Forced by Atmospheric Pressure : Volume 8, Issue 5 (18/09/2012)  
Author: Dobricic, S.
Volume: Vol. 8, Issue 5
Language: English
Subject: Science, Ocean, Science
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2012
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

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Oddo, P., Pinardi, N., Dufau, C., Pujol, I., Dobricic, S., & Rio, M. (2012). Assimilation of Sla Along Track Observations in the Mediterranean with an Oceanographic Model Forced by Atmospheric Pressure : Volume 8, Issue 5 (18/09/2012). Retrieved from http://www.netlibrary.net/


Description
Description: Centro Euro-Mediterraneo per i Cambiamenti Climatici (CMCC), Bologna, Italy. A large number of SLA observations at a high along track horizontal resolution are an important ingredient of the data assimilation in the Mediterranean Forecasting System (MFS). Recently, new higher-frequency SLA products have become available, and the atmospheric pressure forcing has been implemented in the numerical model used in the MFS data assimilation system. In a set of numerical experiments, we show that, in order to obtain the most accurate analyses, the ocean model should include the atmospheric pressure forcing and the observations should contain the atmospheric pressure signal. When the model is not forced by the atmospheric pressure, the high-frequency filtering of SLA observations, however, improves the quality of the SLA analyses. It is further shown by comparing the power density spectra of the model fields and observations that the model is able to extract the correct information from noisy observations even without their filtering during the pre-processing.

Summary
Assimilation of SLA along track observations in the Mediterranean with an oceanographic model forced by atmospheric pressure

Excerpt
Barnier, B., Madec, G., Penduff, T., Molines, J.-M., Treguier, A.-M., le Sommer, J., Beckmann, A., Biastoch, A., B\textasciidieresis oning, 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. doi:10.1007/s10236-006-0082-1, 2006.; Candela, J. and Lozano, C. J.: Barotropic response of the western Mediterranean to observed atmospheric pressure forcing, in: The Seasonal and Interannual Variability of the Western Mediterranean Sea, edited by: La Violette, P. E., Coast. Estuar. Stud., 46, 325–359, American Geophysical Union, 1994.; Carrère, L. and Lyard, F.: Modelling the barotropic response of the global ocean to atmospheric wind and pressure forcing – comparisons with observations, Geophys. Res. Lett., 30, 1275, doi:10.1029/2002GL016473, 2003.; Ponte, R. M.: Variability in a homogeneous global ocean forced by barometric pressure, Dynam. Atmos. Oceans, 18, 209–234, 1993.; Dobricic, S.: New mean dynamic topography of the Mediterranean calculated from assimilation system diagnostics, Geophys. Res. Lett., 32, L11606, doi:10.1029/2005GL022518, 2005.; Dobricic, S. and Pinardi, N.: An oceanographic three-dimensional assimilation scheme, Ocean Modell., 22, 89–105, 2008.; Dobricic, S., Pinardi, N., Adani, M., Tonani, M., Fratianni, C., Bonazzi, A., and Fernandez, V.: Daily oceanographic analyses by Mediterranean Forecasting System at the basin scale, Ocean Sci., 3, 149–157, doi:10.5194/os-3-149-2007, 2007.; Fukumori, I., Menemenlis, D., and Lee, T.: A near-uniform basin-wide sea level fluctuation of the Mediterranean Sea, J. Phys. Oceanogr., 37, 338–358, 2006.; Le Traon, P.-I. and Gauzelin, P.: Response of the Mediterranean mean sea level to atmospheric pressure forcing, J. Geophys. Res., 102, 973–984, 1997.; Molcard, A., Pinardi, N., Iskandarami, M., and Haidvogel, D. B.: Wind driven general circulation of the Mediterranean Sea simulated with a Spectral Element Ocean Model, Dynam. Atmos. Oceans, 17, 687–700, doi:10.1016/S0377-0265(01)00080-X, 2002.; Nastrom, G. D. and Gage, K. S.: A climatology of atmospheric wavenumber spectra of wind and temperature observed by commercial aircraft, J. Atmos. Sci., 42, 950–960, 1985.; Oddo, P., Adani, M., Pinardi, N., Fratianni, C., Tonani, M., and Pettenuzzo, D.: A nested Atlantic-Mediterranean Sea general circulation model for operational forecasting, Ocean Sci., 5, 461–473, doi:10.5194/os-5-461-2009, 2009.; Oddo, P., Pinardi, N., and Bonaduce, A.: Introducing Atmospheric pressure forcing in the Mediterranean Forecasting System, Ocean Sci. Discuss., in preperation, 2012.; Pettenuzzo, D., Large, W. G., and Pinardi, N.: On the corrections of ERA-40 surface flux products consistent with the Mediterranean heat and water budgets and the connection between basin surface total heat flux and NAO, J. Geophys. Res., 115, C06022, doi:10.1029/2009JC005631, 2010.; Pinardi, N. and Coppini, G.: Preface Operational oceanography in the Mediterranean Sea: the second stage of development, Ocean Sci., 6, 263–267, doi:10.5194/os-6-263-2010, 2010.; Pinardi, N., Bonazzi, A., Dobricic, S., Milliff, R. F., Wikle, C. K., and Berliner, L. M.: Ocean ensemble forecasting, Part II: Mediterranean Forecast System response, Q. J. Roy. Meteorol. Soc., 137, 879–893,

 

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