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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, 2019, Vol. 16, No. 4, pp. 175-191

Investigation of the dynamics of stream currents along the coast of the Sambian Peninsula (South-Eastern Baltic) based on numerical modeling and analysis of ocean color satellite images

M.N. Golenko 1 , O.Yu. Lavrova 2 
1 P. P. Shirshov Institute of Oceanology RAS, Moscow, Russia
2 Space Research Institute RAS, Moscow, Russia
Accepted: 14.08.2019
DOI: 10.21046/2070-7401-2019-16-4-175-191
On the basis of numerical modeling of passive admixture propagation and available satellite data, the process of propagation of the Vistula Lagoon waters with an increased concentration of suspended matter along the coast of the Sambian Peninsula of the South-Eastern Baltic is considered. Various regimes of water propagation are described: under the influence of alongshore stream currents as well as with the significant influence of inertial oscillations, which manifests in the distribution of zones of increased concentration of suspended matter to the wide sea area and their “twisting”. The features of atmospheric forcing causing these regimes of water propagation are described. It was obtained that in the Cape Taran region, when the wind direction changed from western to eastern with a speed of about 10 m/s, a stream current arose that was most intense in the steepest area of the slope. In this area, the zone of increased tracer concentration split into separate zones, adjacent to the coast and at a distance from the coast. The propagation of the tracer at a distance from the coast in the considered period of time was significantly affected by inertial oscillations that occurred when the wind direction changed. At moderate wind speeds of up to 8 m/s and a slight change of its direction, the area of distribution of the tracer was compact and continuous.
Keywords: numerical modeling, satellite images of ocean color data, passive tracer, alongshore stream currents, inertial oscillations
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