Water exchange through the Kerch Strait plays a fundamental role in formation of the hydrological, hydrochemical and hydrobiological regimes in the adjacent sea areas. This article examines features of water exchange through the Kerch Strait for various types of the atmospheric impact. The numerical hydrodynamic model ADCIRC was used. The results of numerical modeling of currents and sea level in the Azov -Black Sea basin on the non-uniform computational grid concentrated in the strait were used as the input data. The authors identified the ranges of wind directions at which water exchange through the strait is the most intense; and revealed the relationship between the maximum values of forward and reverse water flux with wind speed. The characteristics of free oscillations in the strait that occur after the wind stops were studied. Simulations show that the wind field generated by an atmospheric cyclone intensifies the total water exchange through the strait when of the cyclone passage speed decreases. The results of calculating water flow in the strait for real synoptic situations are consistent with the estimates obtained by other authors from the field data. The data from the WRF mesoscale meteorological model were used as atmospheric forcing. It was shown that the maximum water flux during storm period is 11000-16000 m 3 /s at the mean currents velocity ~ 0.6-0.9 m/s.Keywords: the Sea of Azov, the Black Sea, the Kerch Strait, wind currents, sea level, water exchange, numerical simulation, ADCIRC. The results of the study of water exchange features through the Kerch Strait on the basis of field observations are given in [13]. In these works measurements of currents in the northern narrowness of the Kerch Strait (Port Krym -Port Kavkaz section) were used for water flux estimation. Analysis of calculation results showed that water exchange through the Kerch Strait intensifies during storms caused by the cyclones or by the action of stable winds, which have predominant meridional velocity component. Currents velocity measurements are scarce and are absent throughout the strait cross section, which makes the water flux computations based on field data quite complicated. Moreover, the measurements in the strait are mostly carried out under calm weather conditions. Hydrodynamic modeling of water exchange through the Kerch Strait can help close this gap in the necessary data.A number of publications [4][5][6][7][8][9] were devoted to modeling the dynamics of the Kerch Strait waters where a computational domain with two liquid boundaries, the northern and southern ones, is used. Depending on the wind direction and the sea level differences on the liquid boundaries, certain boundary conditions that intro-
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