Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL085653 |
Quantifying Asynchronicity of Precipitation and Potential Evapotranspiration in Mediterranean Climates | |
Feng, Xue1,2; Thompson, Sally E.3; Woods, Ross4; Porporato, Amilcare5,6 | |
2019-12-18 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | USA; Australia; England |
英文摘要 | Recent climate change has contributed to shifts in the seasonal interplay between precipitation and potential evapotranspiration, which have in turn increased droughts and reduced freshwater availability in Mediterranean climate regions. To overcome limitations in existing indices for comparing these seasonal hydroclimatic drivers at the global scale, we introduce an information theory-based, nonparametric asynchronicity index that captures both the temporal alignment and relative magnitudes of precipitation and potential evapotranspiration. We use this asynchronicity index to first identify Mediterranean climates around the world. We then apply the asynchronicity index over two Mediterranean climate regions and show that their boundaries have shifted between 1960 and 2018, resulting in a regional expansion in the U.S. Pacific Northwest and a contraction in southwestern Australia. These results highlight the need for globally consistent measures of seasonal climatic water supply and demand for diagnosing potential changes in water resources and ecosystem responses within Mediterranean climate regions. |
英文关键词 | Mediterranean climates synchronicity water resources phenology information theory classification |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000503117900001 |
WOS关键词 | RAINFALL SEASONALITY ; WATER-BALANCE ; WORLD MAP ; SNOWMELT ; FOREST ; BIODIVERSITY ; IMPACT ; SOIL ; SOUTHWEST ; FRAMEWORK |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/225213 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Univ Minnesota, Dept Civil Environm & Geoengn, Minneapolis, MN 55455 USA; 2.Univ Minnesota, St Anthony Falls Lab, Minneapolis, MN 55455 USA; 3.Univ Western Australia, Dept Civil Environm & Min Engn, Perth, WA, Australia; 4.Univ Bristol, Dept Civil Engn, Bristol, Avon, England; 5.Princeton Univ, Dept Civil & Environm Engn, Princeton, NJ 08544 USA; 6.Princeton Univ, Princeton Environm Inst, Princeton, NJ 08544 USA |
推荐引用方式 GB/T 7714 | Feng, Xue,Thompson, Sally E.,Woods, Ross,et al. Quantifying Asynchronicity of Precipitation and Potential Evapotranspiration in Mediterranean Climates[J]. GEOPHYSICAL RESEARCH LETTERS,2019. |
APA | Feng, Xue,Thompson, Sally E.,Woods, Ross,&Porporato, Amilcare.(2019).Quantifying Asynchronicity of Precipitation and Potential Evapotranspiration in Mediterranean Climates.GEOPHYSICAL RESEARCH LETTERS. |
MLA | Feng, Xue,et al."Quantifying Asynchronicity of Precipitation and Potential Evapotranspiration in Mediterranean Climates".GEOPHYSICAL RESEARCH LETTERS (2019). |
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