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Proceedings Paper

Satellite observations of cold filaments and surface jets in the Mediterranean Sea
Author(s): R. D'Archino; Francesco Bignami; Emanuele Bohm; Emma D'Acunzo; Ettore Salusti
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Paper Abstract

Thermal satellite images relative to the years 1997-2000 are analyzed in this study, in order to infer cold filament and surface jet dynamics in the Mediterranean Sea. The main zones in which these phenomena are seen to occur, are characterised by upwelling and/or the funnelling of strong cold winds by a somewhat irregular coastal orography. Indeed, intense air-sea interaction in the coastal zone is known to generate a particularly strong input of potential vorticity into the sea, and this in turn gives origin to upwellings, cold filaments and jets. In the Mediterranean Sea the geographical zones with a higher frequency in these jets are the two lobes of the southern Sicilian coast, the sea off Olbia in Eastern Sardinia, that south of the island of Crete where a particularly intense large scale turbulence field is evident, and the Balkanic coast of the Adriatic Sea. In addition the theoretical analysis of these jets' evolution using a modern version of the potential vorticity conservation, valid even if friction and entrainment are considered, gives further insight into these systems’ dynamics.

Paper Details

Date Published: 26 February 2004
PDF: 10 pages
Proc. SPIE 5233, Remote Sensing of the Ocean and Sea Ice 2003, (26 February 2004); doi: 10.1117/12.512516
Show Author Affiliations
R. D'Archino, Univ. degli Studi di Roma La Sapienza (Italy)
Francesco Bignami, Istituto di Scienze dell'Atmosfera e del Clima, CNR (Italy)
Emanuele Bohm, Istituto di Scienze dell'Atmosfera e del Clima, CNR (Italy)
Emma D'Acunzo, Istituto di Scienze dell'Atmosfera e del Clima, CNR (Italy)
Ettore Salusti, INFN, Univ. degli Studi di Roma La Sapienza (Italy)


Published in SPIE Proceedings Vol. 5233:
Remote Sensing of the Ocean and Sea Ice 2003
Charles R. Bostater; Rosalia Santoleri, Editor(s)

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