One-dimensional nonstationary model of vertical exchange in the Black Sea with regard for the mechanism of winter convection in the surface layer |
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| Authors: | V N Eremeev A S Samodurov O E Kul’sha |
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| Institution: | (1) Marine Hydrophysical Institute, Ukrainian Academy of Sciences, Sevastopol |
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| Abstract: | We construct a one-dimensional nonstationary isopycnic model of vertical exchange in the Black Sea with regard for the processes
of draining and transformation of waters of the Sea of Marmara (or “plume”), vertical diffusion, and the action of winter
convection in the upper layer. It is assumed that mixing in the basin is local in space and time and that the winter wind
action remains constant from year to year in the analyzed version of the model. The temperature of the upper mixed layer introduced
to simulate the winter conditions is regarded as the principal external variable factor. Within the framework of the accepted
restrictions, the model enables us to study the annual and interannual variability of the thermohaline characteristics and
hydrochemical parameters in the water column of the sea. As an example, we perform the numerical analysis of the periodic
action of external thermal conditions on the characteristics of the system with a period of six years.
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Translated from Morskoi Gidrofizicheskii Zhurnal, No. 5, pp. 3–21, September–October, 2006. |
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