globalchange  > 气候减缓与适应
DOI: 10.1175/JCLI-D-17-0775.1
Scopus记录号: 2-s2.0-85049741341
论文题名:
Global assessment of the standardized evapotranspiration deficit index (SEDI) for drought analysis and monitoring
作者: Vicente-Serrano S.M.; Miralles D.G.; Domínguez-Castro F.; Azorin-Molina C.; El Kenawy A.; Mcvicar T.R.; Tomás-Burguera M.; Beguería S.; Maneta M.; Peña-Gallardo M.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2018
卷: 31, 期:14
起始页码: 5371
结束页码: 5393
语种: 英语
英文关键词: Climate variability ; Drought ; Evapotranspiration ; Hydrometeorology ; Indices
Scopus关键词: Drought ; Actual evapotranspiration ; Climate variability ; Evaporative demands ; Hydrometeorology ; Indices ; Land surface conditions ; Log-logistic distribution ; Natural vegetation ; Evapotranspiration ; climate change ; correlation ; drought ; evapotranspiration ; hydrometeorology ; monitoring ; spatiotemporal analysis
英文摘要: This article developed and implemented a new methodology for calculating the standardized evapotranspiration deficit index (SEDI) globally based on the log-logistic distribution to fit the evaporation deficit (ED), the difference between actual evapotranspiration (ETa) and atmospheric evaporative demand (AED). Our findings demonstrate that, regardless of the AED dataset used, a log-logistic distribution most optimally fitted the ED time series. As such, in many regions across the terrestrial globe, the SEDI is insensitive to the AEDmethod used for calculation, with the exception of winter months and boreal regions. The SEDI showed significant correlations (p < 0.05) with the standardized precipitation evapotranspiration index (SPEI) across a wide range of regions, particularly for short ( < 3 month) SPEI time scales. This work provides a robust approach for calculating spatially and temporally comparable SEDI estimates, regardless of the climate region and land surface conditions, and it assesses the performance and the applicability of the SEDI to quantify drought severity across varying crop and natural vegetation areas. © 2018 American Meteorological Society.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111462
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作者单位: Instituto Pirenaico de Ecología, Spanish National Research Council, Zaragoza, Spain; Ghent University, Ghent, Belgium; Regional Climate Group, Department of Earth Sciences, University of Gothenburg, Gothenburg, Sweden; Department of Geography, Mansoura University, Mansoura, Egypt; CSIRO Land and Water, Canberra, ACT, Australia; Australian Research Council Centre of Excellence for Climate System Science, University of New South Wales, Sydney, NSW, Australia; Estación Experimental de Aula Dei, Spanish National Research Council, Zaragoza, Spain; Department of Geosciences, University of Montana, Missoula, MT, United States

Recommended Citation:
Vicente-Serrano S.M.,Miralles D.G.,Domínguez-Castro F.,et al. Global assessment of the standardized evapotranspiration deficit index (SEDI) for drought analysis and monitoring[J]. Journal of Climate,2018-01-01,31(14)
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