Numerical Study of the Vertical Hydrological Structure of the Black Sea Under January Atmospheric Climatological Forcing

Demuri I. Demetrashvili, Diana U. Kvaratskhelia, Vepkhia. G. Kukhalashvili

Abstract


This paper is devoted to the analysis of the vertical structure of circulation and thermohaline fields in the Black Sea for January climatic conditions on the basis of a 3-D baroclinic model of the Black Sea dynamics with 5 km resolution. The model makes it possible to take into account wind driven forcing with alternation of different climatic wind fields and  the atmospheric thermohaline action by both the Dirichlet conditions through setting the temperature and salinity at the sea surface and the Neumann conditions through setting the heat fluxes, evaporation, and atmospheric precipitation. The analysis of the performed numerical experiment  has shown that within  the layer  with depth 0 - 300 m the sub-layers are forming with variable depth in time due to the simultaneously influence of the nonstationarity of atmospheric circulation and thermohaline processes. Within each sub-layer circulation characteristics practically do not change on a vertical but they undergoes some changes in time.


Keywords


calculus and applied mathematics

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References


1. Dorofeev V. L., Korotaev G. K., Assimilation of the satellite altimetry date in the eddy resolving model of the Black Sea circulation. Marine Hydrophys. Journ., 2004b, N1, 52-68. (In Russian).

2. Kara A. B., Wallcraft A. J., and Hurlburt H. E., Sea Surface Temperature Sensitivity to Water Turbidity from Simulations of the Turbid Black Sea Using HYCOM. Journal of Physical Oceanography, 2005b, v. 35, 33-54.

3. A. A. Kordzadze, D. I. Demetrashvili, A. I. Gvelesiani, and D. U.Kvaratskhelia, On the vertical motions in different turbulent layers of the Black Sea, Journal of the Georgian Geophysical Society,Issue B. Physics of Atmosphere,Ocean and Space Plasma, 2011, v.12, pp. 17-35.

4. Kordzadze A. A., Demetrashvili D. I., and Surmava A. A., Numerical Modeling of Geophysical Fields of the Black Sea under the Conditions of Alternation of Atmospheric Circulation Processes , ISSN 0001-4338, Izvestiya, Atmospheric and Oceanic Physics, 2008, v. 44, No. 2, pp. 213–224. © Pleiades Publishing, Ltd., 2008.

5. Kordzadze A. A. and Demetrashvili D. I., Operative forecast of hydrophysical fields in the Georgian Black Sea coastal zone within the ECOOP, Ocean Sci. Discuss., 8, 397–433, 2011, www.ocean-sci-discuss.net/8/397/2011/

6. Korotaev G. K., Saenko O.A., Koblinsky C. J. Satellite altimetry observations of the Black Sea level. Journ. Geoph. Res, 2001, V.106 N C1, 917-933.

7. Korotaev G., Oguz T., Nikiforov A. and Koblinsky C. Seasonal, interannual, and mesoscale variability of the Black Sea upper layer circulation derived from altimeter data. J. Geophys. Res., 2003, 108(C4), 3122, doi:10.1029/2002JC001508

8. Korotaev1 G. K., Oguz T., Dorofeyev1 V. L., Demyshev1 S. G., Kubryakov1 A. I., and Y. B. Ratner, Development of Black Sea nowcasting and forecasting system Ocean Science. Discuss., 8, 917–954, 2011, 8, 917–954, 2011, www.ocean-sci-discuss.net/8/917/2011/

9. Marchuk G. I. Numerical solution of the problems of the atmosphere and the ocean dynamics.Gidrometeoizdat , 1974, 303 p. (in Russian).

10. G. I. Marchuk, Methods of Numerical Mathematics, 2nd ed. (Nauka, Moscow, 1980; Springer, New York, 1975).

Zilitinkevich S. S., Monin A. S. The turbulence in dynamical models of the atmosphere. Nauka, Leningrad, 1971, 44p. (in Russian).

11. Staneva J. V and E. V. Stanev, “Oceanic Response to Atmospheric Forcing Derived from Different Climatic Data Sets. Inter -comparison Study for the Black Sea,” Oceanologia Acta 21, 383–417 (1998). (NaukovaDumka, Kiev, 1980) [In Russian].

12. Sukhonosov V. I. On the correction in whole of the ocean dynamic three-dimensional problem. In: Mechanics of homogeneous continuous mediums, (Novosibirsk, SO AN SSSR, IGD), 1981, 52, 37-53. (in Russian).

13. Kordzadze A. A. Mathematical problems of solution of the ocean dynamics. (Novosibirsk, VTS SO AN SSSR) , 1982, 148 p. (in Russian).

14. Atlas of excitement and a wind of the Black Sea. Gidrometeoizdat, Leningrad, 1969, 112 p. (in Russian).

15. Kordzadze A., Tavartkiladze K. and Kvaratskhelia D. A structure of the wind continuous field on the Black Sea surface. J. Georgian Geophys. Soc., 2000, v. 5b, 28 – 37.

16. Berliand G. G. Methods of climatic calculations of total radiation. Meteorology and Hydrology 1960, N 6, 9-12. (In Russian),

17. Budyko M. I. Heat balance of earth’s surface. Gidrometeoizdat, Leningrad, 1956, 254 p. (in Russian).

18. The handbook on climate of the Black Sea. Branch of Gidrometeoizdat, Moscow, 1974, 404 p. (in Russian).

19. Kondratiev K. J., Zhvalov V. F., Korzov V. I., Ter-Markarjants N. E., Albedo and problems its parameterization for climatic calculation. Proceedings GGO, 1987, vol. 507, 24-50.


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