globalchange  > 过去全球变化的重建
DOI: 10.1007/s00382-015-2875-8
Scopus记录号: 2-s2.0-84944908947
论文题名:
The Westerly Index as complementary indicator of the North Atlantic oscillation in explaining drought variability across Europe
作者: Vicente-Serrano S.M.; García-Herrera R.; Barriopedro D.; Azorin-Molina C.; López-Moreno J.I.; Martín-Hernández N.; Tomás-Burguera M.; Gimeno L.; Nieto R.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2016
卷: 47, 期:2017-03-04
起始页码: 845
结束页码: 863
语种: 英语
英文关键词: Atmospheric circulation ; Climate variability ; Drought proxies ; Evapotranspiration ; NAO ; Non-stationary ; SPEI ; Standardized Precipitation Evapotranspiration Index ; Westerly Index
英文摘要: This paper analyses the influence of different atmospheric circulation indices on the multi-scalar drought variability across Europe by using the Standardized Precipitation Evapotranspiration Index (SPEI). The monthly circulation indices used in this study include the North Atlantic oscillation (NAO), the East Atlantic (EA), the Scandinavian (SCAN) and the East Atlantic–Western Russia (EA–WR) patterns, as well as the recently published Westerly Index (WI), defined as the persistence of westerly winds over the eastern north Atlantic region. The results indicate that European drought variability is better explained by the station-based NAO index and the WI than by any other combination of circulation indices. In northern and central Europe the variability of drought severity for different seasons and time-scales is strongly associated with the WI. On the contrary, the influence of the NAO on southern Europe droughts is stronger than that exerted by the WI. The correlation patterns of the NAO and WI with the SPEI show a spatial complementarity in shaping drought variability across Europe. Lagged correlations of the NAO and WI with the SPEI also indicate enough skill of both indices to anticipate drought severity several months in advance. As long as instrumental series of the NAO and WI are available, their combined use would allow inferring European drought variability for the last two centuries and improve the calibration and interpretation of paleoclimatic proxies associated with drought. © 2015, Springer-Verlag Berlin Heidelberg.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53602
Appears in Collections:过去全球变化的重建

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作者单位: Instituto Pirenaico de Ecología, Consejo Superior de Investigaciones Científicas (IPE-CSIC), Campus de Aula Dei, P.O. Box 13034, Zaragoza, Spain; Stratospheric and Tropospheric Research and Modelling (STREAM) Group, Dpto. Física de la Tierra, Astronomía y Astrofísica II, Universidad Complutense de Madrid, Madrid, Spain; Instituto de Geociencias (IGEO, CSIC, UCM), Madrid, Spain; Estación Experimental de Aula Dei, Consejo Superior de Investigaciones Científicas (EEAD-CSIC), Zaragoza, Spain; Environmental Physics Laboratory, Universidade de Vigo, Ourense, Spain

Recommended Citation:
Vicente-Serrano S.M.,García-Herrera R.,Barriopedro D.,et al. The Westerly Index as complementary indicator of the North Atlantic oscillation in explaining drought variability across Europe[J]. Climate Dynamics,2016-01-01,47(2017-03-04)
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