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| Titel |
Association between anomalies of moisture flux and extreme runoff events in the south-eastern Alps |
| VerfasserIn |
M. Müller, M. Kaspar |
| 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 ; 11, no. 3 ; Nr. 11, no. 3 (2011-03-23), S.915-920 |
| Datensatznummer |
250009271
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| Publikation (Nr.) |
 copernicus.org/nhess-11-915-2011.pdf |
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| Zusammenfassung |
The aims of the paper are (i) to describe the annual distribution of extreme
runoff events on the Mura, Drava and Sava Rivers, (ii) to demonstrate their
association with moisture fluxes, and (iii) to explain their annual
distribution by moisture flux climatology. Extreme runoff events were
defined as rapid increases in daily mean discharge. Moisture flux anomalies
were studied within six pixels of the ERA-40 database around the studied
region.
In general, extreme runoff events were concentrated in the summer and autumn
and were usually associated with anomalies in moisture flux, mainly from the
south. Nevertheless, while southern and western moisture fluxes were typical
of Sava River events that occurred mainly in autumn, summer events prevailed
on the Mura River and were frequently associated with moisture fluxes from
the east or the north.
It is remarkable that moisture fluxes from the west and south have their
maxima in the autumn, whereas those from the east and north have their
maxima in the summer. Therefore, the climatology of moisture flux seems to
be one of the major reasons for the annual distribution of extreme runoff
events in the study region. This result should be confirmed in other regions
in the future. |
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