Mesoscale structure of the fields of vertical velocity and vorticity of winds over the Black Sea |
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Authors: | V. S. Barabanov V. V. Efimov M. V. Shokurov |
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Affiliation: | (1) Marine Hydrophysical Institute, Ukrainian Academy of Sciences, Sevastopol |
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Abstract: | On the basis of a simple stationary linear model and a contemporary nonlinear model, we study the mesoscale characteristics of the fields of vertical velocity and vorticity of winds over the Black Sea. It is shown that, in the idealized case (without taking into account the coastal features), the temperature contrast between the land and the sea in both models leads to the formation of circulation cells in the coastal zone. However, the mountainous features prove to be the main factor affecting the process of circulation for the actual synoptic situations. We present the map of monthly average vorticity of the surface winds constructed according to the nonlinear mesoscale model with a resolution of 30 km for January 1996–2001. __________ Translated from Morskoi Gidrofizicheskii Zhurnal, No. 1, pp. 52–61, January–February, 2005. |
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