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Proceedings Paper

Assimilation of satellite AVHRR SST in an OGCM of the Mediterranean Sea: data processing, new parametrizations, and physical results
Author(s): Vincenzo Artale; Fabrizio D'Ortenzio; Daniele Iudicone; Salvatore Marullo; Volfango Rupolo; Rosalia Santoleri
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Paper Abstract

OGCM's numerical experiments for climatic studies can be performed only after testing their capability to well represent the today ocean circulation. In order to improve the model results we assimilated satellite SST (from NOAA-AVHRR sensors) by means of a nudging method. Daily 1987 - 1992 NASA Pathfinder SST have been interpolated in time and space by means of an objective analysis algorithm to fill gaps in the time series. These data were analyzed to investigate the main variability of the Mediterranean SST field. The 1988 data was selected to be assimilated in the OGCM. To relate more closely the assimilation of the SST data to the physics of the air-sea interaction, here we propose a new parameterization of the surface relaxation time. Actually the use of realistic surface forcing strongly contribute to reproduce the correct hydrological values of the Mediterranean water masses, the right energetic basin budgets and the mesoscale features of the Mediterranean circulation.

Paper Details

Date Published: 11 December 1998
PDF: 12 pages
Proc. SPIE 3496, Earth Surface Remote Sensing II, (11 December 1998); doi: 10.1117/12.332715
Show Author Affiliations
Vincenzo Artale, Ctr. Ricerche Casaccia/ENEA (Italy)
Fabrizio D'Ortenzio, Istituto de Fisica dell'Atmosfera/CNR (Italy)
Daniele Iudicone, Istituto de Fisica dell'Atmosfera/CNR (Italy)
Salvatore Marullo, Ctr. Ricerche Casaccia/ENEA (Italy)
Volfango Rupolo, Ctr. Ricerche Casaccia/ENEA (Italy)
Rosalia Santoleri, Istituto de Fisica dell'Atmosfera/CNR (Italy)

Published in SPIE Proceedings Vol. 3496:
Earth Surface Remote Sensing II
Giovanna Cecchi; Eugenio Zilioli, Editor(s)

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