globalchange  > 气候变化与战略
DOI: 10.5194/hess-24-3663-2020
论文题名:
Widespread decline in terrestrial water storage and its link to teleconnections across Asia and eastern Europe
作者: Liu X.; Feng X.; Ciais P.; Fu B.
刊名: Hydrology and Earth System Sciences
ISSN: 1027-5606
出版年: 2020
卷: 24, 期:7
起始页码: 3663
结束页码: 3676
语种: 英语
Scopus关键词: Atmospheric pressure ; Geodetic satellites ; Groundwater ; Surface waters ; Water supply ; Arctic Oscillation ; Global water resources ; Gravity recovery and climate experiment satellites ; Land surface modeling ; North Atlantic oscillations ; Southern oscillation ; Spatio-temporal variation ; Terrestrial water storage ; Climate models ; Arctic Oscillation ; El Nino-Southern Oscillation ; GRACE ; North Atlantic Oscillation ; spatiotemporal analysis ; surface water ; teleconnection ; water storage ; Asia ; Eastern Europe
英文摘要: Recent global changes in terrestrial water storage (TWS) and associated freshwater availability raise major concerns about the sustainability of global water resources. However, our knowledge regarding the long-term trends in TWS and its components is still not well documented. In this study, we characterize the spatiotemporal variations in TWS and its components over the Asian and eastern European regions from April 2002 to June 2017 based on Gravity Recovery and Climate Experiment (GRACE) satellite observations, land surface model simulations, and precipitation observations. The connections of TWS and global major teleconnections (TCs) are also discussed. The results indicate a widespread decline in TWS during 2002-2017, and five hotspots of TWS negative trends were identified with trends between 8:94 and 21:79mmyr1. TWS partitioning suggests that these negative trends are primarily attributed to the intensive over-extraction of groundwater and warmthinduced surface water loss, but the contributions of each hydrological component vary among hotspots. The results also indicate that the El Niño-Southern Oscillation, Arctic Oscillation and North Atlantic Oscillation are the three largest dominant factors controlling the variations in TWS through the covariability effect on climate variables. However, seasonal results suggest a divergent response of hydrological components to TCs among seasons and hotspots. Our findings provide insights into changes in TWS and its components over the Asian and eastern European regions, where there is a growing demand for food grains and water supplies. © 2020 Copernicus GmbH. All rights reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/162638
Appears in Collections:气候变化与战略

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作者单位: Liu, X., State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China, School of Geography and Tourist, Shaanxi Normal University, Xi'an, 710119, China; Feng, X., State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; Ciais, P., Laboratoire des Sciences du Climat et de l'Environnement, CEA-CNRS-UVSQ, Gif-sur-Yvette, France; Fu, B., State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China

Recommended Citation:
Liu X.,Feng X.,Ciais P.,et al. Widespread decline in terrestrial water storage and its link to teleconnections across Asia and eastern Europe[J]. Hydrology and Earth System Sciences,2020-01-01,24(7)
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