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Titre du Document
Synergetic satellite study of a rapidly deepening cyclone over the Norwegian Sea : 13-16 February 1989
Auteur(s)
CLAUD C. ; KATSAROS K. B. ; MOGNARD N. M. ; ...
Résumé
In oceanic regions, conventional meteorological observations are often insufficient for following the progression of atmospheric depressions, which generally leads to poor prediction in terms of strength and location. Since observations from polar-orbiting satellites probe nearly every region of the earth about twice a day, they can be used to track the propagation and evolution of weather systems and potentially improve the forecasts. The synoptic and mesoscale aspects ofa rapidly intensifying cyclone, which persisted over the northern Atlantic Ocean and the Norwegian Sea for four days in February 1989, are presented. A combination of three instruments was used: the TIROS-N Operational Vertical Sounder (TOVS; 19 infrared, 1 visible and 4 microwave channels), the Special Sensor Microwave/Imager(SSM/I, a passive microwave radiometer with 7 channels), and an active radar altimeter (Geosat). Atmospheric temperature and humidity profiles along with cloud information can be derived from the TOVS while SSM/I provides oceanic estimates of integrated water vapor content, integrated cloud liquid water content, rain occurrence, and surface wind speed; the Geosat radar altimeter measures marine surface wind speed and significant wave height. All sensors show the strong gradients in marine weather variables (surface wind speed, water vapor and cloud liquid water content) associated with the storm. The TOVS observations reveal that the disturbance occurred in a predominantly baroclinic en
Editeur
International Publishers Distributor
Identifiant
ISSN : 1023-6732
Source
The Global atmosphere and ocean system A. 1995, vol. 3, n° 1, pp. 1-34 [Illustrations : Illustration] [bibl. : 1 p.3/4]
Langue
Anglais
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