ANALYSIS AND ASSESSMENT OF VARIABILITY OF THE HYDROLOGICAL REGIME OF THE RIVERS OF THE SARYSU BASIN IN SPATIAL AND TEMPORAL ASPECTS

Trends in average annual river discharge were analyzed to identify regional and local features of the hydrological regime. Trends in average annual river discharge were derived by processing time series of these values in Microsoft Excel, which makes it possible to obtain regression hydrological models in the form of a linear function of time. This made it possible to determine the trend and intensity of change over time, within allowing for the analyze and forecasting of water resources dynamics in the present and future, considering the process of climate change.