Geografie 2012, 117, 1-20

The influence of meteorological factors on rockfall in the Moravskoslezské Beskydy Mts.

Rudolf Brázdil1, Karel Šilhán2, Tomáš Pánek2, Petr Dobrovolný1, Lucie Kašičková1, Radim Tolasz3

1Masaryk University, Faculty of Science, Institute of Geography, Kotlářská 2, 611 37 Brno, Czechia
2University of Ostrava, Faculty of Science, Department of Physical Geography and Geoecology, Chitussiho 10, 710 00 Ostrava, Czechia
3Czech Hydrometeorological Institute, Na Šabatce 17, 143 06 Praha 4, Komořany, Czechia

Received June 2011
Accepted January 2012

Rockfall rate (RR) series for four sites in the Moravskoslezské Beskydy Mountains (Smrk1, Smrk2, Ropice and Satina) were created for the period 1931–2008, using a dendrogeomorphic approach. Meteorological stations from the immediate area were also selected to study the influence of meteorological factors on rockfall. Monthly, seasonal, and annual mean air temperatures (TM), number of days with transitions of temperatures through 0 °C (Tr0) and precipitation totals (Pr) were used for this analysis. Despite the complexity of the rockfall process, uncertainty in the development of RR series and uncertainty in local meteorological patterns, there exist statistically significant correlation coefficients between RR series and meteorological variables. Multiple stepwise linear regression allows explanation of up to 43% (Satina in 1975–2008) of the RR variability by meteorological factors. Tr0, followed by TM, are the most important factors, while the influence of Pr was demonstrated only randomly.


This paper was prepared with financial support from the Grant Agency of the Czech Republic, grant ref. No. P209/10/0309 “The effect of historical climatic and hydrometeorological extremes on slope and fluvial processes in the Western Beskydy Mts. and their forefield”.


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