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| Titel |
Decadal changes in extreme daily precipitation in Greece |
| VerfasserIn |
P. T. Nastos, C. S. Zerefos |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7340
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| Digitales Dokument |
URL |
| Erschienen |
In: Observation, Prediction and Verification of Precipitation (EGU Session 2007) ; Nr. 16 (2008-04-09), S.55-62 |
| Datensatznummer |
250013071
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| Publikation (Nr.) |
 copernicus.org/adgeo-16-55-2008.pdf |
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| Zusammenfassung |
| The changes in daily precipitation totals in Greece, during the 45-year
period (1957–2001) are examined. The precipitation datasets concern daily
totals recorded at 21 surface meteorological stations of the Hellenic
National Meteorological Service, which are uniformly distributed over the
Greek region. First and foremost, the application of Factor Analysis
resulted in grouping the meteorological stations with similar variation in
time. The main sub groups represent the northern, southern, western, eastern
and central regions of Greece with common precipitation characteristics. For
representative stations of the extracted sub groups we estimated the trends
and the time variability for the number of days (%) exceeding 30 mm
(equal to the 95% percentile of daily precipitation for eastern and
western regions and equal to the 97.5% percentile for the rest of the
country) and 50 mm which is the threshold for very extreme and rare events.
Furthermore, the scale and shape parameters of the well fitted gamma
distribution to the daily precipitation data with respect to the whole
examined period and to the 10-year sub periods reveal the changes in the
intensity of the precipitation. |
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