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| Titel |
Modelling monthly precipitation with circulation weather types for a dense network of stations over Iberia |
| VerfasserIn |
N. Cortesi, R. M. Trigo, J. C. González-Hidalgo, A. M. Ramos |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1027-5606
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| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 17, no. 2 ; Nr. 17, no. 2 (2013-02-13), S.665-678 |
| Datensatznummer |
250017716
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| Publikation (Nr.) |
 copernicus.org/hess-17-665-2013.pdf |
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| Zusammenfassung |
| Precipitation over the Iberian Peninsula (IP) is highly variable and shows
large spatial contrasts between wet mountainous regions to the north, and
dry regions in the inland plains and southern areas. In this work, we
modelled the relationship between atmospheric circulation weather types
(WTs) and monthly precipitation for the wet half of the year (October to
May) using a 10 km grid derived from a high-density dataset for the IP (3030
precipitation series, overall mean density one station each 200 km2).
We detected two spatial gradients in the relationship between WTs and
precipitation. The percentage of monthly precipitation explained by WTs
varies from northwest (higher variance explained) to southeast (lower
variance explained). Additionally, in the IP the number of WTs that
contribute significantly to monthly precipitation increase systematically
from east to west. Generally speaking, the model performance is better to the
west than to the east where the WTs approach produce the less accurate
results. We applied the WTs modelling approach to reconstruct the long-term
precipitation time series for three major stations of Iberia (Lisbon,
Madrid, Valencia). |
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