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estimation of results of calculations by the model of kinematics wave and method of water balances is conducted.
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Introduction. The main characteristic of hydrometeorological mode of China Lake, is the water balance of inland waters, defined process flow and water flow. Based on the water balance is determined by water exchange, physical and chemical processes in reservoirs and estimated effects of measures aimed at possible economic use of water resources.
Purpose. The aim is analyze of physical – geographic, morphometric, hydrological, hydraulic characteristics of China Lake and the rivers that feed them; calculation of the components of the water balance of the lake China (in 2008-2014) and determine the water balance of residuals.
Methods. In the analysis of available materials observations known statistical methods used; in determining the unknown components of water balance – similar hydrological me
thods and operating regulations.
Results. Receipt of lake water balance China (2008-2014) in the largest extent determine precipitation on the water surface of the lake (from 17 to 77%), while expenditure is the highest percentage of evaporation from 38,7 to 86,1%. The greatest value of residuals observed in the summer months, received their size residuals are found within the acceptable.
Conclusion. The authenticity of the definition of the components of the water balance of the lake. China will also be checked accuracy of the values of salinity of water in the reservoir as a result of payments salt balance.
The study of the reservoirs is of great scientific interest and is of practical importance for the solution of problems of rational use and protection of water resources. The paper describes the latest reservoir in the cascade of Dnipro Kakhovka Reservoir and its component of water balance. The methods of determining the components of the water balance that were once offered the Kakhovka hydro-meteorological observatory are submitted. Great attention is drawn to the surface flow of water into the reservoir from unexplored rivers, which is determined by the method of analogy. The probable error of this method, in turn, is equal to for monthly values 30-50% and annual – 10-20%. So, there is provided somewhat different a method for determining the surface flow using the curve of security component amount of annual precipitation, maps of the norm runoff and tables SNiP 2.01.14.83. The proposed method simplifies and accelerates the process of calculating the amounts of surface water flow in unexplored rivers to Kakhovka reservoir.
Based on the water balance components.of a study of the external water exchange in the largest of the Dnieper reservoirs with the water year.
On the basis of real meteorological data generalization and analysis of indicators of evaporation from the water surface of Kremenchug reservoir during its operation were held.