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| Titel |
The response of Iberian rivers to the North Atlantic Oscillation |
| VerfasserIn |
J. Lorenzo-Lacruz, S. M. Vicente-Serrano, J. I. López-Moreno, J. C. González-Hidalgo, E. Morán-Tejeda |
| 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 ; 15, no. 8 ; Nr. 15, no. 8 (2011-08-24), S.2581-2597 |
| Datensatznummer |
250012928
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| Publikation (Nr.) |
 copernicus.org/hess-15-2581-2011.pdf |
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| Zusammenfassung |
| In this study we analyzed the influence of the North Atlantic Oscillation
(NAO) on the streamflow in 187 sub-basins of the Iberian Peninsula. Monthly
and one-month lagged correlations were conducted to assess the
spatio-temporal extent of the NAO influence on Iberian river discharges.
Analysis of the persistence of the winter NAO throughout the year was also
undertaken, together with analysis of streamflow anomalies during positive
and negative NAO phases. Moving-window correlation analyses were conducted
to assess potential changes in the temporal evolution of the NAO influence
on Iberian streamflows. The results show that the NAO has a large impact on
surface water resources throughout the Iberian Peninsula during winter, and
in the Atlantic watershed during autumn. We showed that water resources
management and snowmelt are causing the persistent dependence of streamflows
on the previous winter NAO. We found that strongly positive streamflow
anomalies occurred during winter, especially in the Atlantic watershed, and
provide evidence of non-stationarity and spatial variability in the NAO
influence on Iberian water resources. |
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