globalchange  > 气候变化与战略
DOI: 10.1016/j.scitotenv.2019.136360
Gravimetry-based water storage shifting over the China-India border area controlled by regional climate variability
Author: Chun K.P.; He Q.; Fok H.S.; Ghosh S.; Yetemen O.; Chen Q.; Mijic A.
Source Publication: Science of the Total Environment
ISSN: 489697
Publishing Year: 2020
Volume: 714
Language: 英语
Keyword: China-India border area ; Climate variability ; Gravity Recovery and Climate Experiment ; Water storage shifting
Scopus Keyword: Atmospheric thermodynamics ; Drought ; Global warming ; Losses ; Temperature ; Water management ; Wetting ; Border areas ; Climate variability ; Ganges-brahmaputra basins ; Gravity recovery and climate experiments ; Palmer drought severity indices ; Terrestrial water storage ; Water resources management ; Water storage ; Digital storage ; snow ; border region ; climate variation ; drought ; evaporation ; flooding ; global warming ; gravimetry ; monsoon ; regional climate ; spatial distribution ; water management ; Article ; China ; climate change ; environmental temperature ; gravimetry ; greenhouse effect ; India ; Indian Ocean ; meteorological phenomena ; monsoon climate ; precipitation ; priority journal ; water management ; water supply ; China ; India ; Indian Ocean ; Qinghai-Xizang Plateau
English Abstract: The regional water storage shifting causes nonstationary spatial distribution of droughts and flooding, leading to water management challenges, environmental degradation and economic losses. The regional water storage shifting is becoming evident due to the increasing climate variability. However, the previous studies for climate drivers behind the water storage shifting are not rigorously quantified. In this study, the terrestrial water storage (TWS) spatial shifting pattern during 2002–2017 over the China-India border area (CIBA) is developed using the Gravity Recovery and Climate Experiment (GRACE), suggesting that the Indus-Ganges-Brahmaputra basin (IGBB) was wetting while the central Qinghai-Tibet Plateau (QTP) was drying. Similar drying and wetting patterns were also found in the precipitation, snow depth, Palmer Drought Severity Index (PDSI) and potential evaporation data. Based on our newly proposed Indian monsoon (IM) and western North Pacific monsoon (WNPM) variation indices, the water shifting pattern over the CIBA was found to be affected by the weakening of the variation of IM and WNPM through modulating the regional atmospheric circulation. The weakening of IM and WNPM variations has shown to be attributed to the decreasing temperature gradient between the CIBA and the Indian Ocean, and possibly related to increasing regional temperatures associated with the increasing global temperature. As the global warming intensifies, it is expected that the regional TWS shifting pattern over the CIBA will be further exaggerated, stressing the need of advancing water resources management for local communities in the region. © 2019 Elsevier B.V.
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Affiliation: Department of Geography, Hong Kong Baptist University, Hong Kong; School of Geodesy and Geomatics, Wuhan University, Wuhan, 430079, China; Department of Civil Engineering, Indian Institute of Technology Bombay, Mumbai, India; Civil, Surveying, and Environmental Engineering, The University of Newcastle, Australia; Geophysics Laboratory, Faculty of Science, Technology and Communication, University of Luxembourg, 2, avenue de l'Université, Esch-sur-Alzette, L-4365, Luxembourg; Imperial College London, Department of Civil and Environmental Engineering, London, SW7 2AZ, United Kingdom; Eurasia Institute of Earth Sciences, Istanbul Technical University, Maslak, Istanbul 34469, Turkey

Recommended Citation:
Chun K.P.,He Q.,Fok H.S.,et al. Gravimetry-based water storage shifting over the China-India border area controlled by regional climate variability[J]. Science of the Total Environment,2020-01-01,714
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