This edition of the annual Hydrological Bulletin contains key information on river runoff resources for the eight water management basins (hereinafter WMB) of the Republic of Kazakhstan as a whole, as well as for the main river basins and their sections for the period from the early 1930s to 2023. Data are provided on the main characteristics of the spring flood, including its start and end dates, duration, maximum water discharge, runoff layers and volumes, information on hazardous hydrological events that occurred at water bodies during the year, as well as parameters of intra-annual runoff distribution of the main rivers during the period of anthropogenic impact.
Source data. The bulletin is prepared using data from the Republican Hydrometeorological Fund of the RSE «Kazhydromet»:
1) Series of mean annual water discharges for the entire observation period up to 2023;
2) Series of spring flood characteristics for the entire observation period up to 2023;
3) Series of mean monthly water discharges, used for the calculation and analysis of intraannual runoff during the period of anthropogenic impact, with each basin having its own starting period up to 2023;
4) Data on hazardous ice phenomena (ice jams and frazil ice accumulations) at hydrological stations;
5) Information on extraordinary and hazardous hydrological events recorded during the year.
The annual Hydrological Bulletin is intended for specialists whose work is related to the management and use of surface water: hydrologists, hydraulic engineers, land reclamation specialists, ecologists, geographers, as well as for scientific and educational institutions, government authorities, and all interested parties.
