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Daily Oceanographic Analyses by the Mediterranean Basin Scale Assimilation System : Volume 3, Issue 6 (22/11/2006)

By Dobricic, S.

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Book Id: WPLBN0004020954
Format Type: PDF Article :
File Size: Pages 22
Reproduction Date: 2015

Title: Daily Oceanographic Analyses by the Mediterranean Basin Scale Assimilation System : Volume 3, Issue 6 (22/11/2006)  
Author: Dobricic, S.
Volume: Vol. 3, Issue 6
Language: English
Subject: Science, Ocean, Science
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2006
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

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Pinardi, N., Adani, M., Tonani, M., Bonazzi, A., Fernandez, V., Fratianni, C., & Dobricic, S. (2006). Daily Oceanographic Analyses by the Mediterranean Basin Scale Assimilation System : Volume 3, Issue 6 (22/11/2006). Retrieved from http://worldpubliclibrary.org/


Description
Description: Istituto Nazionale di Geofisica e Vulcanologia, Bologna, Italy. This study presents the upgrade of the Optimal Interpolation scheme used in the basin scale assimilation scheme of the Mediterranean Forecasting System. The modifications include a daily analysis cycle, the assimilation of ARGO float profiles, the implementation of the geostrophic balance in the background error covariance matrix and the initialisation of the analyses. A series of numerical experiments showed that each modification had a positive impact on the accuracy of the analyses: The daily cycle improved the representation of the processes with a relatively high temporal variability, the assimilation of ARGO floats profiles significantly improved the salinity analyses quality, the geostrophically balanced background error covariances improved the accuracy of the surface elevation analyses, and the initialisation removed the barotropic adjustment in the forecast first time steps starting from the analysis.

Summary
Daily oceanographic analyses by the Mediterranean basin scale assimilation system

Excerpt
Le Traon, P. Y., Nadal, F., and Ducet, N.: An improved mapping method of multisatellite altimeter data, J. Atmos. Ocean. Technol., 15, 522–533, 2003.; Buongiorno Nardelli, B., Larnicol, G., D'Acunzo, E., Santoleri, R., Marullo, S., and Le Traon, P. Y.: Near Real Time SLA and SST products during 2-years of MFS pilot project: processing, analysis of the variability and of the coupled patterns, Ann. Geophys., 21, 103–121, 2003.; Castellari, S., Pinardi, N., and Leaman, K. D.: A model study of air-sea interactions in the Mediterranean Sea, J. Mar. Sys., 18, 89–114, 1998.; Daley, R.: Atmospheric data analysis. Cambridge atmospheric and space science series, Cambridge University Press, ISBN 0-521-38215-7, 1991.; De Mey, P. and Benkiran, M.: A multivariate reduced-order optimal interpolation method and its application to the Mediterranean basin-scale circulation, in: Ocean Forecasting, edited by: Pinardi, N. and Woods, J., Springer Verlag, 281–306, 2002.; Demirov, E., Pinardi, N., Fratianni, C., Tonani, M., Giacomelli, L., and De Mey, P.: Assimilation scheme in the Mediterranean forecasting system:operational implementation, Ann. Geophys., 21, 189–204, 2003.; Dobricic, S., Pinardi, N., Adani, M., Bonazzi, A., Fratianni, C., and Tonani, M.: Mediterranean Forecasting System: An improved assimilation scheme for sea-level anomaly and its validation, Q. J. R.. Meteor. Soc., 131, 3627–3642, 2005.; Manzella, G., Cardin, V., Cruzado, A., Fusco, G., Gacic, M., Galli, C., Gasparini, G., Gervais, T., Kovacevic, V., Millot, C., Petit DeLa Villeon, L., Spaggiari, G., Tonani, T., Tziavos, C., Velasquez, Z., Walne, A., Zervakis, V., and Zodiatis, G.: EU-sponsored effort improves monitoring of circulation variability in the Mediterranean, EOS Transactions, Am. Geophys. Union, 82, 497–504, 2001.; The MEDAR Group: MEDAR/MEDATLAS 1998–2001: Mediterranean and Black Sea database of temperature, salinity and bio-chemical parameters and climatological atlas (4 CDRoms), Internetserver www.ifremer.fr/sismer/program/medarIFREM, ER/TMSI/IDM/SISMER Ed., Centre de Brest, 2002.; Pinardi, N., Rosati, A., and Pacanowski, R. C.: The sea surface pressure formulation of rigid lid models, Implications for altimetric data assimilation studies, J. Mar. Sys., 6, 109–119, 1995. %; %Poulain, P.-M., Barbanti, R., Font, J., Cruzado, A., Millot, C., Gertman, I., Griffa, A., Molcard, A., Rupolo, V., %Le Bras, S., and Petit de la Villeon, L.: MEDARGO:Mediterranean Sea, %\textitsubmitted to Ocean Sciences (this issue), 2006. %; %%Rio, M. E., Poulain, P.-M., Pasqual, A., Mauri, E., Larnicol, G., and %Santoleri, L.: A mean dynamic topography of the Mediterranean Sea computer %from the altimetric data and in situ measurements, submitted to J. Mar. Sys., 2006.; Roullet, G. and Madec, G.: Salt conservation, free surface, and varying levels: a new formulation for ocean general circulation models, J. Geophys. Res., 105, 23 927–23 942, 2000.; Talagrand, O.: On the damping of high-frequency motions in four-dimensional assimilation of meteorological data, J. Atmos. Sci., 29, 1571–1574, 1972.

 

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