Spanish Extreme Winds and Their Relationships with Atlantic Large-Scale Atmospheric Patterns
- Pascual, Alvaro 1
- Valero, Francisco 1
- Martín, Maria Luisa 3
- García-Legaz, Carlos 2
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1
Universidad Complutense de Madrid
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2
Agencia Estatal de Meteorología
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3
Universidad de Valladolid
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ISSN: 2167-9495, 2167-9509
Año de publicación: 2013
Volumen: 02
Número: 03
Páginas: 23-35
Tipo: Artículo
Otras publicaciones en: American Journal of Climate Change
Resumen
The purpose of this work is to review procedures to obtain relationships between wind and large-scale atmosphericfields, with special emphasis on extreme situation results. Such relationships are obtained by using different methodsand techniques such as wind cumulative probability functions and composite maps. The analyses showed differentmean atmospheric situations associated with the different wind patterns, in which strong atmospheric gradients can berelated to moderate to strong winds in Spain. Additionally, a statistical downscaling analog model, developed by theauthors, is used for diagnosing large-scale atmospheric circulation patterns and subsequently estimating extreme windprobabilities. From an atmospheric circulation pattern set obtained by multivariate methodology applied to a large-scaleatmospheric circulation field, estimations of wind fields, particularly extreme winds, are obtained by means of the analogs methodology. Deterministic and probabilistic results show that gust behaviour is quite better approximated thanmean wind speed, in general. The model presents some underestimations except for strong winds. Moreover, the modelshows better probabilistic wind results over the Spanish northern area, highlighting that the atmospheric situationscoming from the Atlantic Ocean are better recovered to predict mean wind and gusts in the Northern Peninsula.
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