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Terrestrial water variations in the North China Plain revealed by the GRACE mission
Su XiaoLi1; Ping JinSong1; Ye QiXin3
2011
Source PublicationSCIENCE CHINA-EARTH SCIENCES
ISSN1674-7313
Volume54Issue:12Pages:1965
AbstractUsing eight years of time-variant gravity measurements from the GRACE gravity satellite mission, we estimate monthly terrestrial water storage variations in the North China Plain between August 2002 and August 2010. We find that during this period, the water storage is not constant but accelerate at a rate of -1.1 cm/yr over time. The study confirms that the relatively long-term trend of water storage in the North China Plain (by 13-point moving average) is consistent well with that by linear fitting. Two hydrological models, CPC and GLDAS, are adopted in calculating surface water variations, with results indicating that they agree with those of GRACE. Furthermore, rates of -0.6 cm/yr for surface water variations and -0.5 cm/yr for groundwater variations are found in the North China Plain during the study period. Decrease of rainfall and the groundwater over-exploitation are possibly the main causes for groundwater depletion in the North China Plain. The results will be helpful for better understanding climatic changes and provide reference for the management of water resources and the establishment of policies on preventing and alleviating natural hazards.
KeywordSTORAGE GRACE gravity measurements groundwater the North China Plain
Language英语
Funding Project[National High Technology Program of China] ; [National Natural Science Foundation of China]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/59502
Collection中国科学院国家天文台
Affiliation1.中国科学院国家天文台
2.中国科学院
3.Shanghai Ctr Satellite Remote Sensing & Applicat, Shanghai 201100, Peoples R China
First Author AffilicationNational Astronomical Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Su XiaoLi,Ping JinSong,Ye QiXin. Terrestrial water variations in the North China Plain revealed by the GRACE mission[J]. SCIENCE CHINA-EARTH SCIENCES,2011,54(12):1965.
APA Su XiaoLi,Ping JinSong,&Ye QiXin.(2011).Terrestrial water variations in the North China Plain revealed by the GRACE mission.SCIENCE CHINA-EARTH SCIENCES,54(12),1965.
MLA Su XiaoLi,et al."Terrestrial water variations in the North China Plain revealed by the GRACE mission".SCIENCE CHINA-EARTH SCIENCES 54.12(2011):1965.
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