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Conditions of fish reproduction in the Volga–Caspian Basin depending on the hydrological regime in the Volga lower reaches, transformed by water withdrawals and regulatory impact of reservoirs are considered. 相似文献
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Sokolova O. V. Vyruchalkina T. Yu. Solomonova I. V. Dobrovol’skii S. G. 《Water Resources》2021,48(1):7-17
Water Resources - A joint data repository on flowage lakes of the world and long-term flow variations in the rivers they regulate has been formed. The specific features of the flowage lake... 相似文献
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Water Resources - Based on the analysis of 162 longest (more than 100 years each) series of annual, maximal, and minimal runoff in rivers of different genetic types, the regularities of changes in... 相似文献
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An algorithm is proposed for simulating a hydrological random process for the case of a vector, whose components are runoff values for the Khoper R. in three high-water months and the Volga R. in February, April, and the average over April, May, and June. The simulation is shown to have a high accuracy: the expectations and the coefficients of variation exactly coincide with specified values; the skewness has an accuracy of 0.1; the deviation of the coefficients of autocorrelation and cross-correlation of vector components from the specified values never exceeds 0.05. 相似文献
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Problems arising in modeling long-term variations in rivers rising from lakes are discussed in the context of the theory of correlation of non-Gaussian stochastic processes and with the use of Fokker–Plank–Kolmogorov equation. Numerically simulated runoff values of the Angara River rising from Lake Baikal are given. 相似文献
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Oceanology - The paper examines the temperature dependence of the specific growth rate and ratio of variable to maximum fluorescence (FV/FM) in a number of marine planktonic algae from collections... 相似文献
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Ratkovich D. Ya. Vyruchalkina T. Yu. Nikonova R. E. Solomonova I. V. 《Water Resources》2002,29(5):485-496
The results of probabilistic analysis of data on setup level variations collected during long-term observations at all gages along the Caspian Sea coast are discussed. A procedure for evaluating low-probability sea level extremes is proposed. Estimates are given for the probabilities of outstanding setups in the Caspian Sea and the Sea of Azov. 相似文献
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Variations in the regime of fluctuations of river flow regulated by reservoirs are discussed with reference to typical Russian rivers. 相似文献
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The results of studying the hydrological regime of the Caspian Sea and its basin climate in observation period 1945–2010 are generalized. The results of analysis of the regime of precipitation, air temperature in the Caspian Sea basin and its level, as well as Volga runoff in periods of Caspian Sea level rise and drop are given. The conformity in variations of the trends in Caspian Sea level its basin climate is demonstrated, and the direction of further studies is substantiated. 相似文献
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