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National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 
Heavy snowfall in Czechia and snowfall extremity evaluation
 Kolář, Šimon ; Müller, Miloslav (advisor) ; Nedělčev, Ondřej (referee)
The thesis deals with selected heavy snowfall events and evaluation of their extremity in Czechia in the period 2009-2013. Based on a literature search, four methods to assess the extremity of heavy snowfall events are described. In Czechia, the only tool used so far is the highest recorded depth of fresh snow, which represents an indication of point extremities. Another option is to evaluate the size of the area with the depth of fresh snow according to the criteria of the Integrated Warning Service System. The third way is the regional snowfall index (RSI), considering not only the size of the affected area but also the number of population in it. It would also be possible to assess the heavy snowfall events with the help of the weather extremity index (WEI), which would quantify the area distribution of return periods of depth of fresh snow at meteorological stations. In the second part of the thesis, the extremity of four selected events is evaluated using the first three criteria and the differences resulting from the tools used are pointed out. The results of the extremity assessment of individual heavy snowfall events according to different indices show a difference in the results in the extremity assessment for the same event depending on the evaluation index used. We record the maximum...
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