RUNOFF DYNAMICS OF THE IRTYSH RIVER UNDER THE CONDITIONS OF CLIMATE CHANGE

The climatic dynamics of temperature and humidity in the region of Kazakhstan Altai and its influence on the runoff of the Irtysh (Ertys) river are considered. It is shown that climatic changes in the region generally reflect such changes in the territory of Kazakhstan, however, there are a number of features, consisting in the degree of severity of extremes and some of their delay in relation to central Kazakhstan. Surface runoff follows the dynamics of precipitation and temperature in the area of its formation. The time course of the runoff in the upper and middle reaches of the Irtysh is significantly different, which is the result of the influence of economic activity, as a result of which part of it is irretrievably taken. It has proven difficult to quantify runoff loss. A forecast is made of expected changes in runoff under the influence of climate change.