Numerical investigation of the influence of the Caucasus relief on the distribution of hydrometeorological fields

Autor: Avtandil Kordzadze, A. A. Surmava, V. G. Kukhalashvili, Demuri Demetrashvili
Rok vydání: 2007
Předmět:
Zdroj: Izvestiya, Atmospheric and Oceanic Physics. 43:722-730
ISSN: 1555-628X
0001-4338
DOI: 10.1134/s0001433807060060
Popis: The influence of the Caucasus relief on temporal and spatial variations in meteorological fields is investigated through the numerical integration of nonadiabatic, nonstationary, and nonlinear equations of atmospheric hydrothermodynamics. A dimensionless vertical coordinate is used. In numerical experiments, this coordinate makes it possible to approximate a real relief at a high accuracy and to take into account specific features of a complex orography of the region. The cases of flowing around the relief by large-scale westerly, easterly, northerly, and southerly background winds are modeled. The relief in the lower troposphere is shown to considerably change the spatial structures of large-scale fields of meteorological elements and to form the mesoscale structures of wind, temperature, pressure, and cloudiness that are characteristic of the Caucasus.
Databáze: OpenAIRE
Externí odkaz: