globalchange  > 过去全球变化的重建
DOI: 10.1007/s00382-016-3082-y
Scopus记录号: 2-s2.0-84961642242
论文题名:
The complex influence of ENSO on droughts in Ecuador
作者: Vicente-Serrano S.M.; Aguilar E.; Martínez R.; Martín-Hernández N.; Azorin-Molina C.; Sanchez-Lorenzo A.; El Kenawy A.; Tomás-Burguera M.; Moran-Tejeda E.; López-Moreno J.I.; Revuelto J.; Beguería S.; Nieto J.J.; Drumond A.; Gimeno L.; Nieto R.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2017
卷: 48, 期:2017-01-02
起始页码: 405
结束页码: 427
语种: 英语
英文关键词: Drought ; Ecuador ; El Niño 1 + 2 ; El Niño 3.4 ; Standardized Precipitation Evapotranspiration Index (SPEI)
英文摘要: In this study, we analyzed the influence of El Niño–Southern Oscillation (ENSO) on the spatio-temporal variability of droughts in Ecuador for a 48-year period (1965–2012). Droughts were quantified from 22 high-quality and homogenized time series of precipitation and air temperature by means of the Standardized Precipitation Evapotranspiration Index. In addition, the propagation of two different ENSO indices (El Niño 3.4 and El Niño 1 + 2 indices) and other atmospheric circulation processes (e.g., vertical velocity) on different time-scales of drought severity were investigated. The results showed a very complex influence of ENSO on drought behavior across Ecuador, with two regional patterns in the evolution of droughts: (1) the Andean chain with no changes in drought severity, and (2) the Western plains with less severe and frequent droughts. We also detected that drought variability in the Andes mountains is explained by the El Niño 3.4 index [sea surface temperature (SST) anomalies in the central Pacific], whereas the Western plains are much more driven by El Niño 1 + 2 index (SST anomalies in the eastern Pacific). Moreover, it was also observed that El Niño and La Niña phases enhance droughts in the Andes and Western plains regions, respectively. The results of this work could be crucial for predicting and monitoring drought variability and intensity in Ecuador. © 2016, Springer-Verlag Berlin Heidelberg.
资助项目: MINECO, Ministerio de Economía y Competitividad ; MINECO, Ministerio de Economía y Competitividad ; MINECO, Ministerio de Economía y Competitividad ; CSIC, Consejo Superior de Investigaciones Científicas ; EC, European Commission
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53393
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), Saragossa, Spain; Center for Climate Change, C3, Universitat Rovira i Virgili (URV), Tarragona, Spain; Centro Internacional para la Investigación del Fenómeno de El Niño (CIIFEN), Guayaquil, Ecuador; Water Desalination and Reuse Centre (WDRC), King Abdullah University of Science and Technology, Thuwal, Saudi Arabia; Department of Geography, Mansoura University, Mansoura, Egypt; Estación Experimental Aula Dei, Consejo Superior de Investigaciones Científicas (EEAD-CSIC), Saragossa, Spain; Environmental Physics Laboratory, Universidade de Vigo, Ourense, Spain

Recommended Citation:
Vicente-Serrano S.M.,Aguilar E.,Martínez R.,et al. The complex influence of ENSO on droughts in Ecuador[J]. Climate Dynamics,2017-01-01,48(2017-01-02)
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