Institute of retraining and advanced training of agribusiness
Author list of organization
List of articles written by the authors of the organization
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CALCULATION OF MELTING RATE OF DEBRIS-COVERED AREAS OF A MOUNTAIN GLACIER
DescriptionConsiderable parts of the ablation zones of mountain glaciers in various mountain systems of the World are covered with rocks (dibris). Heat and physical properties of debris layer are very different from those of ice. Debris layer determines ablation rate and ice run-off regime. Dependently on thickness, it can accelerate ablation or totally isolate ice cover from melting. To describe ablation rate in a mathematical model correctly, one needs to include in it a block responsible for heat exchange of debris-covered areas with the atmosphere. In the paper, we consider an algorithm for calculation of ablation rate under the layer of debris, which is to be incorporated to the surface mass balance model. We also describe results of calculations of temperature distribution in a debris layer and estimates of ablation rate under the latter. All calculations were carried out for heat and physical properties of Djankuat Glacier in the Central Caucasus
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Description
In the article, we consider climatic conditions during the cold period of the year in the mountain claster of Sochi. We have analyzed variability of time series of air temperature and precipitation sums at meteostation Krasnaya Polyana. We have established, that average daily temperature in the cold period was growing during the last thirty years. This process was accompanied by decreasing of daily temperature amplitides. Winter of the year 2016/17 is characterized by early beginning of snow accumulation because of comparatively low temperatures in December 2016. This was the reason in general for comparatively more dense snow cover and to more frequent avalanches
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Description
Considered in the study, there are specific features and stratigraphy of the snow cover in the region of the mountain claster of Sochi (Krasnaya Polyana) during winter of 2016-2017. We have analyzed patterns of snow thickness distribution, its dependence on the absolute elevation, slope exposition and landscape type. Conclusions were made about the necessity of the regular study of the structure and quality of the snow cover for the purpose of mountain skiing development
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APPLICATION OF THE APPLIED SOFTWARE IN SELECTION OF ANIMALS
06.00.00 Agricultural sciences
DescriptionThe algorithms of estimating breeding value, allowing increasing its accuracy several times are developed on the basis of establishment of the selection characteristics of existing selection criteria and the definition of the coefficient