статья в журнале

Ru

Sovremennye Problemy Distantsionnogo Zondirovaniya Zemli iz Kosmosa

ISSN:2070-7401
eSSN:2411-0280

2020

10.21046/2070-7401-2020-17-3-231-239

The paper discusses the cyclonic activity in the Mediterranean-Black Sea region from January to March 1996-2009 on the basis of Meteosat satellite data on a 10×10 km grid. To identify the areas of cyclogenesis, the cluster analysis method was used. To assess the quality of the selected coordinates of the cloud vortices centers, they were compared with the coordinates of baric centers placed on surface synoptic maps and on maps of baric topography at the 500 hPa level. It was found that the frequency of cloud vortices over the Mediterranean during this period corresponds to that of cyclones. The performed analysis of the Mediterranean cyclones forming areas makes it possible to identify four main areas of cyclone origin over the Mediterranean: North-Western, South-Western, Central and Eastern, with the Balkan Peninsula and the Black Sea set apart. The number of days with cyclones found in satellite data was compared with NCEP/NCAR re-analysis data. Pronounced cyclogenesis in the Northwest (North-Western) region of the Mediterranean (54.5 %) was found, and areas of winter cyclogenesis in the Black Sea were identified. In the areas of cyclonic activity, the troposphere contains jet currents with a vertical thickness of up to 8.5 km. In the lower layer of the troposphere, right wind rotation was observed, and in the middle and upper troposphere with significant vertical gradients, left wind rotation was observed. Excess of the moisture content and moisture transfer above their average values on three or more times promotes the intensification of precipitation processes. © 2020 Space Research Institute of the Russian Academy of Sciences. All rights reserved.

СРЕДИЗЕМНОМОРСКО-ЧЕРНОМОРСКИЙ РЕГИОН, СПУТНИКОВЫЕ СНИМКИ, ПАРАМЕТРЫ ЦИКЛОНОВ, ВЛАЖНОСТНО-ДИНАМИЧЕСКИЕ ХАРАКТЕРИСТИКИ ТРОПОСФЕРЫ, MEDITERRANEAN-BLACK SEA REGION, SATELLITE IMAGES, CYCLONE PARAMETERS, MOISTURE-DYNAMIC CHARACTERISTICS OF THE TROPOSPHERE

2020-11-20 12:04:53