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Why do rivers in the Carpathian Mountains often flood in spring and summer?
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Carpathian Mountains
Regional division of the Carpathian Mountains (top) and a geologic cross section of the Western Carpathians (bottom). The location of the cross section is shown by the line N–S on the map.
Rivers in the Carpathian Mountains follow a rain–snow regime, which leads to high-water periods during the spring (March–April) and summer (June–July). The summer floods are typically more powerful than those in the spring.1
These floods often reach catastrophic levels primarily because the ground in the region has poor retention capacity for rainfall. To mitigate these risks, numerous storage basins have been constructed throughout the mountain range to manage water runoff.1