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Title: ANALYSIS OF VORTEX STRUCTURE IN A SHALLOW STRATIFIED LAKE
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ANALYSIS OF VORTEX STRUCTURE IN A SHALLOW STRATIFIED LAKE
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1314-2704
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English
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3.1
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In the summer period of 2018 satellite-tracked quasi-lagrangian drifter was launched in saline stratified Lake Shira (Republic of Khakassia, Russia). The analysis of obtained data was revealed a mesoscale vortex structure in the lake.
At the same time, measurements of the current velocity were carried out at several points in the lake using an Acoustic Doppler Current Profiler (ADCP). The reliability of the data obtained using the quasi-lagrangian drifter is confirmed by a comparison with the data for the current velocity and for the direction and speed of the wind. The horizontal velocity was analyzed using complex empirical orthogonal functions. The hodograph of the first temporal coefficient shows the elliptical structure of the current. This effect may be due to the strong variability of wind on the lake during the summer period or to the vortex structure of wind stress. To clarify the origin and distribution of the mesoscale eddies (vortices) in Lake Shira, it is necessary to conduct a study with a large number of drifters. |
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conference
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19th International Multidisciplinary Scientific GeoConference SGEM 2019
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19th International Multidisciplinary Scientific GeoConference SGEM 2019, 30 June - 6 July, 2019
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Proceedings Paper
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STEF92 Technology
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International Multidisciplinary Scientific GeoConference-SGEM
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Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
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41-48
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30 June - 6 July, 2019
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website
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cdrom
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5603
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lagrangian drifters; ADCP; mesoscale eddies; lake circulation
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