globalchange  > 气候变化与战略
DOI: 10.1038/s41561-020-0594-1
论文题名:
Observed changes in dry-season water availability attributed to human-induced climate change
作者: Padrón R.S.; Gudmundsson L.; Decharme B.; Ducharne A.; Lawrence D.M.; Mao J.; Peano D.; Krinner G.; Kim H.; Seneviratne S.I.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2020
卷: 13, 期:7
起始页码: 477
结束页码: 481
语种: 英语
英文关键词: anthropogenic effect ; climate change ; climate modeling ; dry season ; evapotranspiration ; global warming ; observational method ; precipitation (climatology) ; twentieth century ; water availability ; Asia ; Australia ; East Africa ; Europe ; North America ; South America
英文摘要: Human-induced climate change impacts the hydrological cycle and thus the availability of water resources. However, previous assessments of observed warming-induced changes in dryness have not excluded natural climate variability and show conflicting results due to uncertainties in our understanding of the response of evapotranspiration. Here we employ data-driven and land-surface models to produce observation-based global reconstructions of water availability from 1902 to 2014, a period during which our planet experienced a global warming of approximately 1 °C. Our analysis reveals a spatial pattern of changes in average water availability during the driest month of the year over the past three decades compared with the first half of the twentieth century, with some regions experiencing increased and some decreased water availability. The global pattern is consistent with climate model estimates that account for anthropogenic effects, and it is not expected from natural climate variability, supporting human-induced climate change as the cause. There is regional evidence of drier dry seasons predominantly in extratropical latitudes and including Europe, western North America, northern Asia, southern South America, Australia and eastern Africa. We also find that the intensification of the dry season is generally a consequence of increasing evapotranspiration rather than decreasing precipitation. © 2020, The Author(s), under exclusive licence to Springer Nature Limited.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169659
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作者单位: Institute for Atmospheric and Climate Science, Department of Environmental Systems Science, ETH Zurich, Zurich, Switzerland; CNRM, Centre National de Recherches Météorologiques, Université de Toulouse, Météo-France, CNRS, Toulouse, France; Laboratory METIS (Milieux environnementaux, transferts et interaction dans les hydrosystèmes et les sols, Metis), Sorbonne Université, CNRS, EPHE, IPSL, Paris, France; Climate and Global Dynamics Laboratory, National Center for Atmospheric Research, Boulder, CO, United States; Environmental Sciences Division and Climate Change Science Institute, Oak Ridge National Laboratory, Oak Ridge, TN, United States; Fondazione Centro euro-Mediterraneo sui Cambiamenti Climatici, CMCC, Bologna, Italy; Institut des Géosciences de l’Environnement (IGE), CNRS, Université Grenoble Alpes, Grenoble, France; Institute of Industrial Science, The University of Tokyo, Tokyo, Japan

Recommended Citation:
Padrón R.S.,Gudmundsson L.,Decharme B.,et al. Observed changes in dry-season water availability attributed to human-induced climate change[J]. Nature Geoscience,2020-01-01,13(7)
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