REGULARITIES OF VARIABILITY IN AVERAGE MONTHLY FLOW RATES DURING THE LOW-WATER PERIOD IN THE RIVERS OF BELARUS
DOI:
https://doi.org/10.36773/1818-1112-2023-132-3-78-82Keywords:
flow rates, average monthly runoff, summer-autumn low water, winter low water, frequency of hydrological phenomena, modular coefficientAbstract
The research is devoted to the study of long-term dynamics of fluctuations in average monthly flow rates during the summer-autumn and winter low-water periods in the rivers of Belarus. The assessment of extreme water flows of rare frequency in the summer-autumn period for the two time intervals (1961‒1990, 1991‒2020) demonstrates an increase in their frequency at most gauging stations over the last 30-year period. The minimum average monthly flow rates in the summer-autumn period are most often observed in August or September. The research shows that all months covering the winter low-water period are characterized by a tendency to increase runoff, more pronounced after 1988.
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