Meteorological singularities in the Czech Republic in the period 1961–2002 |
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Authors: | L ?ezní?ková R Brázdil R Tolasz |
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Institution: | (1) Institute of Geography, Masaryk University, Brno, Czech Republic;(2) Czech Hydrometeorological Institute, Prague, Czech Republic |
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Abstract: | Summary Based on the mean daily values of air temperature, air pressure, and precipitation totals at 13 climatological stations within
the territory of the Czech Republic in the period 1961–2002, a statistical analysis of “meteorological singularities” (i.e.,
calendar-dependent deviations from the mean annual variation for selected meteorological elements) was performed. At the 13
stations analysed, a total of 45 meteorological singularities (37 singularities in air temperature, 35 in air pressure, and
30 in precipitation) were found. The singularities detected correlate well with cases traditionally recognised in the Czech
Republic as well as with the results of analyses performed for Germany. Despite the considerable variability of singularities
in time and space, most of them are found across the entire territory of the Czech Republic and can be observed for the most
part in all three elements processed. The majority of the singularities detected may be explained on the basis of circulation
mechanisms, by relating them to a significantly higher occurrence of certain groups of synoptic situations characterised by
anomalous temperature or precipitation effects. Cases of “competition” between singularities, when different singularities
may occur on the same calendar day, were found. |
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Keywords: | |
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