Vestnik Otdelenia nauk o Zemle RAN, VOL. 8, NZ9001, doi:10.2205/2016NZ000127, 2016

Extreme levels of Khanka Lake: natural variation or anthropogenic interference?

M. V. Bolgov

Institute of Water Problems, RAS, Moscow, Russia

Abstract

The factors and regularities of the formation of the water balance for transboundary Khanka Lake are considered in the article. The water level in the Khanka Lake reached in the recent years extreme values over the whole period of observations. There was carried out analysis and predicting the lake water level fluctuations using the probabilistic models of the water balance components and dynamic stochastic simulation of the hydrological regime of the lake.

It is shown that the hydrological regime of the Khanka Lake is affected by anthropogenic changes in the available water resources because of the development of the irrigating especially on the Chinese part of the lake basin. The estimation of the constructed technical systems contribution to extreme raising of the lake water level, and also the estimation of effectiveness of the possible activities to reduce risk of flooding in coastal regions are executed by the method of multivariant simulation experiments on the base of the model of the hydrological system and drainage basin of the lake.

Received 5 September 2016; published 20 September 2016.

Copyright 2016 by the Geophysical Center RAS