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Scientific Review. Geographical Sciences

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MODELING OF SNOWMELT PROCESSE USING ENERGY BALANCE METHOD (ON EXAMPLE OF VOTKINSKOE RESERVOIR CATCHMENT AREA)

Шихов А.Н., Абдуллин Р.К., Максимова Е.С.
The article analyze the methods and results of spatial modeling of processes of snowmelt in Votkinskoe reservoir catchment area. For evaluate the snowmelt intensity, the authors use the empirical method of calculation of snow cover energy budget, proposed by P.P. Kuzmin. The method allows to perform evaluation of the radiation and advective components of snow melting, and evaporation from snow cover. The technique of input data preparation for modeling are described. The authors propose the methods of estimation of fields of air temperature and humidity, wind speed, snow water equivalent, total solar radiation and cloud cover, using GIS technologies, taking into account the relief and land cover/land use types of territory. The calculation of snowmelt, using P.P. Kuzmin method is realize on example of 2011 and 2012 spring season. The validation of results is made according of snow survey data and remote sensing data. The authors show that the using of the P.P. Kuzmin method for snowmelt modeling does not always provide the more reliable results than the using of degree-day factor model.