Аннотация:Mosaic structure of the underlying surface in major mountain systems such as the Caucasus, determines the characteristics of the radiation fluxes and, as a consequence, forms a sophisticated mode of the whole complex of meteorological elements. In this regard, the quality of weather forecasts of global and even mesoscale models in mountainous areas is often unsatisfactory. Modern complex studies of the radiation regime in the Caucasus and the factors that determine it are quite rare, especially for winter season. So the main goal of the expedition was to obtain rather unique data about the distribution of radiation fluxes and the properties of aerosols in various contrasting geographical conditions of the North Caucasus.
In order to achieve the stated goal, three measuring complexes have been deployed: 870 m (Kislovodsk), 2070 m (IAP RAS Kislovodsk high-mountain scientific station) and 3500 m (Mount Elbrus). At each point, regular measurements of shortwave and longwave radiation, aerosol optical thickness, moisture content, UV radiation, air temperature, atmospheric pressure, integral and surface ozone concentration were carried out.
As a result of the conducted research, the altitude dependence of the aerosol optical thickness and radiation characteristics, as well as regional characteristics of the radiation regime were revealed. The measured values of aerosol optical thickness and the integral ozone concentration were compared with the data obtained by satellite remote sensing and aerosol climatology [2,4]. A relatively new effective CLIRAD(FC05)-SW [3] radiation code, the radiation block [1] of the COSMO-Ru1 model and CFSv2, NCEP/NCAR, FNL, ERA-Interim reanalysis were tested against the measured values.
The reported study was partly funded by RFBR (research project № 16-05-00985а).