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Journal of Fundamental and Applied Sciences

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Estimation of the long-term tendencies and homogeneity of the average annual water temperature and air temperature in the Siverskyi Donets River Basin (within Ukraine)

T. Zabolotnia

Abstract


According to the scientific researches of many scientists in the world, the climate fluctuations causes changes of the whole complex hydrometeorological factors. The main factor that determines the thermal regime of the rivers is air temperature. In this paper, the long-term tendencies of the average annual water temperature and air temperature in the Siverskyi Donets River Basin (within Ukraine) was researched. The period of observation on gauging stations is the start of observations till 2013 inclusive (the longest period is 1947-2013). The methodological approaches are based on the use of hydro-genetic methods. It was found that series of observations of the hydrometeorological data is homogeneous and synchronous. However, the fluctuations of the average annual water temperature are not always synchronous phase. The tendency to increase the average annual water temperature of rivers, caused by corresponding increase of air temperature, was found.

Keywords: average annual water temperature, average annual air temperature,  homogeneity, asynchronicity phase, hydro-genetic analysis.




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