Influence of Winter North Atlantic Oscillation (NAO) on climate and snow accumulation in the Mediterranean mountains
This chapter shows the influence of the North Atlantic Oscillation (NAO) on droughts in the entire Mediterranean region between 1901 and 2006. The analysis has been based on identification of positive and negative NAO winters and also detection of the anomalies of drought severity by means of the St...
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ftunivgeneve:oai:unige.ch:aou:unige:18510 2023-10-01T03:57:53+02:00 Influence of Winter North Atlantic Oscillation (NAO) on climate and snow accumulation in the Mediterranean mountains Lopez-Moreno, J. I. Vicente-Serano, S. M. Moran-Tejeda, E. Lorenzo-Lacruz, J. Zabalza, J. El Kenawy, A. Beniston, Martin 2011 https://archive-ouverte.unige.ch/unige:18510 eng eng Springer info:eu-repo/semantics/altIdentifier/doi/10.1007/978-94-007-1372-7_6 https://archive-ouverte.unige.ch/unige:18510 unige:18510 info:eu-repo/semantics/ Hydrological, Socioeconomic and Ecological Impacts of the North Atlantic Oscillation in the Mediterranean Region / Vicente-Serano, M. and Trigo, R. (ed.), (2011) p. 73-89 info:eu-repo/classification/ddc/333.7-333.9 info:eu-repo/semantics/bookPart Text Chapitre de livre 2011 ftunivgeneve https://doi.org/10.1007/978-94-007-1372-7_6 2023-09-07T07:00:55Z This chapter shows the influence of the North Atlantic Oscillation (NAO) on droughts in the entire Mediterranean region between 1901 and 2006. The analysis has been based on identification of positive and negative NAO winters and also detection of the anomalies of drought severity by means of the Standardized Precipitation Evapotranspiration Index (SPEI). The analysis is focussed on the winter NAO. Nevertheless, given that the SPEI drought indicator can be obtained at different time-scales, the study shows how the effects of the winter NAO on droughts are propagated for the following months when long time scales are considered. In general, during the positive phases, the negative SPEI averages are recorded in Southern Europe (the Iberian Peninsula, Italy and the Balkans), areas of Turkey and northwest Africa. On the contrary, the SPEI averages are found positive in northeast Africa. The opposite configuration, but with some differences in the spatial patterns and the magnitude of the SPEI averages, is found during the negative NAO years. The findings of this study should be of great applicability in terms of developing early warning systems. The established relationships between NAO phases and drought indices seem appropriate for drought prediction over large areas of the Mediterranean basin. Book Part North Atlantic North Atlantic oscillation Université de Genève: Archive ouverte UNIGE 73 89 |
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Université de Genève: Archive ouverte UNIGE |
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ftunivgeneve |
language |
English |
topic |
info:eu-repo/classification/ddc/333.7-333.9 |
spellingShingle |
info:eu-repo/classification/ddc/333.7-333.9 Lopez-Moreno, J. I. Vicente-Serano, S. M. Moran-Tejeda, E. Lorenzo-Lacruz, J. Zabalza, J. El Kenawy, A. Beniston, Martin Influence of Winter North Atlantic Oscillation (NAO) on climate and snow accumulation in the Mediterranean mountains |
topic_facet |
info:eu-repo/classification/ddc/333.7-333.9 |
description |
This chapter shows the influence of the North Atlantic Oscillation (NAO) on droughts in the entire Mediterranean region between 1901 and 2006. The analysis has been based on identification of positive and negative NAO winters and also detection of the anomalies of drought severity by means of the Standardized Precipitation Evapotranspiration Index (SPEI). The analysis is focussed on the winter NAO. Nevertheless, given that the SPEI drought indicator can be obtained at different time-scales, the study shows how the effects of the winter NAO on droughts are propagated for the following months when long time scales are considered. In general, during the positive phases, the negative SPEI averages are recorded in Southern Europe (the Iberian Peninsula, Italy and the Balkans), areas of Turkey and northwest Africa. On the contrary, the SPEI averages are found positive in northeast Africa. The opposite configuration, but with some differences in the spatial patterns and the magnitude of the SPEI averages, is found during the negative NAO years. The findings of this study should be of great applicability in terms of developing early warning systems. The established relationships between NAO phases and drought indices seem appropriate for drought prediction over large areas of the Mediterranean basin. |
format |
Book Part |
author |
Lopez-Moreno, J. I. Vicente-Serano, S. M. Moran-Tejeda, E. Lorenzo-Lacruz, J. Zabalza, J. El Kenawy, A. Beniston, Martin |
author_facet |
Lopez-Moreno, J. I. Vicente-Serano, S. M. Moran-Tejeda, E. Lorenzo-Lacruz, J. Zabalza, J. El Kenawy, A. Beniston, Martin |
author_sort |
Lopez-Moreno, J. I. |
title |
Influence of Winter North Atlantic Oscillation (NAO) on climate and snow accumulation in the Mediterranean mountains |
title_short |
Influence of Winter North Atlantic Oscillation (NAO) on climate and snow accumulation in the Mediterranean mountains |
title_full |
Influence of Winter North Atlantic Oscillation (NAO) on climate and snow accumulation in the Mediterranean mountains |
title_fullStr |
Influence of Winter North Atlantic Oscillation (NAO) on climate and snow accumulation in the Mediterranean mountains |
title_full_unstemmed |
Influence of Winter North Atlantic Oscillation (NAO) on climate and snow accumulation in the Mediterranean mountains |
title_sort |
influence of winter north atlantic oscillation (nao) on climate and snow accumulation in the mediterranean mountains |
publisher |
Springer |
publishDate |
2011 |
url |
https://archive-ouverte.unige.ch/unige:18510 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
Hydrological, Socioeconomic and Ecological Impacts of the North Atlantic Oscillation in the Mediterranean Region / Vicente-Serano, M. and Trigo, R. (ed.), (2011) p. 73-89 |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/978-94-007-1372-7_6 https://archive-ouverte.unige.ch/unige:18510 unige:18510 |
op_rights |
info:eu-repo/semantics/ |
op_doi |
https://doi.org/10.1007/978-94-007-1372-7_6 |
container_start_page |
73 |
op_container_end_page |
89 |
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1778530084990222336 |