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Identifikácia rizikových oblastí a rizikových faktorov vzniku povodní v malých povodiach

In: Geografický časopis, vol. 53, no. 3
Anna Grešková
Detaily:
Rok, strany: 2001, 247 - 268
Kľúčové slová:
small catchments, flash floods, storm rainfalls, risk factors, risk areas
O článku:
The paper is dedicated to the question of flash floods in small catchments. Identification of conditions, risk areas and risk factors contributing to the origin flash floods leans on the existing digital network of small catchments of Slovakia and the database of their physical characteristics. Based on retrospective analysis of the flood events in the years 1977-1999, hydroclimatic situation existing during the events, as well as the relevant physical properties of the small catchments stricken by floods were evaluated. Physical properties were classified into four groups containing morphometric relief characteristics, climatic characteristics, characteristics of rocks and soil-weathering mantle and those of land cover. The area of small catchments was also taken into account. High precipitation totals fallen on small, sharply delimited area at high degree of saturation of the particular catchment by previous precipitation, high values of morphometric characteristics (sea level altitude and inclination above all), poor transmissivity of the rocks and the soil-weathering mantle, as well as an overall retention capacity are the decisive factors contributing to the origin of flash floods.
Ako citovať:
ISO 690:
Grešková, A. 2001. Identifikácia rizikových oblastí a rizikových faktorov vzniku povodní v malých povodiach. In Geografický časopis, vol. 53, no.3, pp. 247-268. 0016-7193.

APA:
Grešková, A. (2001). Identifikácia rizikových oblastí a rizikových faktorov vzniku povodní v malých povodiach. Geografický časopis, 53(3), 247-268. 0016-7193.