Dynamics of streamflow characteristics of the rivers within the Angara basin under regional climatic changes

Long-term flow rate fluctuations have been analyzed to identify groups of rivers with similar alternations of low and high flow rate periods. Consideration is being given to the variation tendencies of the streamflow and its intra-annual redistribution as well as to changes in extreme characteristics: maximum streamflow at the period of high water and floods, and minimum summer and winter streamflow. Results are provided from verifying the homogeneity in the data series for the periods prior to and after the onset of pronounced climatic changes.