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ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa
CURRENT PROBLEMS IN REMOTE SENSING OF THE EARTH FROM SPACE

  

Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2014, Vol. 11, No. 4, pp. 42-55

Structures of the geostrophic and cross-geostrophic currents in the Western, Central and South-Eastern Baltic under westerly and north-easterly winds

N.N. Golenko  , M.N. Golenko 
Atlantic Branch of the P.P. Shirshov Institute of Oceanology RAS, Kaliningrad 236000, Russia
The characteristics of surface current spatial structure in the Western, Central and South-Eastern Baltic Sea are investigated on the basis of numerical modeling. In order to analyze current spatial structure, it is suggested to separate the whole model velocity into components directed along and across the barotropic geostrophic current velocity. Since the along geostrophic velocity components are directed along isobaths, which are known a priori, the derived current velocity distributions can be useful in attempts to reconstruct the currents using other methods, for example, analysis of satellite data. For the investigated region, current velocity distributions arising under westerly and north-easterly winds are considered. Namely under these wind directions the most intense quasi geostrophic currents arise near the Southern coast of the Baltic Sea including the Polish, Kaliningrad region and Lithuanian coastal areas. In addition to the analysis of the mentioned above velocity components, estimations of the ageostrophic velocity components in the surface layer are obtained.
Keywords: Baltic Sea, geostrophic and ageostrophic currents
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