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| Titel |
Heavy rains and extreme rainfall-runoff events in Central Europe from 1951 to 2002 |
| VerfasserIn |
M. Müller, M. Kaspar, J. Matschullat |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 9, no. 2 ; Nr. 9, no. 2 (2009-03-19), S.441-450 |
| Datensatznummer |
250006712
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| Publikation (Nr.) |
 copernicus.org/nhess-9-441-2009.pdf |
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| Zusammenfassung |
| Runoff data were used to better select historically significant precipitation
events. The suggested criterion Qx expresses the increase of a stream
runoff over up to four days in a row. Tests confirmed that Qx maxima
correspond to maxima of areal precipitation in the respective catchment. Ten
significant precipitation events in summer half-years from 1951 to 2002 were
selected in 25 catchments each, and further studied in respect to spatial
extent, simultaneous occurrence in various river basins, seasonal
distribution, and temporal variability. Four regions were recognised within
Central Europe that show related seasonality and simultaneous occurrence of
events. The main coincidence of significant precipitation events was
confirmed between the Austrian Alps and Bohemia and Saxony on one hand, and
Moravia, Silesia, and Western Slovakia on the other hand. Significant events
typically emerge here during peak summer, in the south-eastern area of the
Alps during autumn months, in the South-Eastern Carpathians from May to July,
and in Western Germany in spring or autumn. Episodes with less significant
precipitation events (around 1960 and 1990) alternate with inverse episodes
(1970's, second half of the 1990's). A reasonable selection of reference
events opens the door to a quantitative evaluation of dynamic and
thermodynamic conditions typical for heavy rains in various parts of Central
Europe. |
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