Mesoscale Cyclonic Eddies in the Black Sea Region

2009/06/12 by V. V. Efimov, Efimov, V. V., M. V. Shokurov +5
Physics and Astronomy · #Atmospheric and Oceanic Physics (physics.ao-ph) #FOS: Physical sciences #Geophysics (physics.geo-ph) #physics.ao-ph #physics.geo-ph

paper · pdf · doi:10.48550/arxiv.0906.2304

13 pages, 9 figures

arxiv created 2009/06/12 · arxiv updated 2009/12/01

Abstract

Results of regional climate modeling PRECIS with high spatial resolution (25 km) were used to investigate mesoscale features of atmospheric circulation in the Black Sea Region for 30-yr period. Method based on Ocubo-Weiss criterion was used to detect and track subsynoptic eddies. Several types of cyclonic eddy were discovered and studied: winter Caucasian coastal, summer Caucasian off-shore, ambient cyclonic eddies, and rare quasitropical cyclones. For Caucasian eddies statistics of their life-time and intensity, as well as histograms of diurnal and seasonal cycles, are presented.

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