Long-term gravity changes in Chinese mainland from GRACE and ground-based gravity measurements

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作者：
Xing Lelin Li Hui Xuan Songbai Kang Kaixuan and Liu Xiaoling Institute of Seismology China Earthquake Administration Wuhan China School of Geodesy and Geomatics Wuhan University Wuhan China Provincial Geomatics Center of Hubei Hubei Bureau of Surveying and Mapping Wuhan China [1 ,2 ,1 ,1 ,1 ,3 ,1 ,430071 ,2 ,430079 ,3 ,430071 ]
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来源：
Geodesy and Geodynamics | 2011年 / 2卷 / 03期
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中图分类号：
P312 [重力学与地球形状学];
学科分类号：
摘要：
A long-term (9 years) gravity change in Chinese mainland is obtained on the basis of observations of the ground-based national gravity network. The result shows several features that may be related to some large-scale groundwater pumping in North China, glacier-water flow and storage in Tianshan region, and pre-seismic gravity changes of the 2008 Ms8.0 Wenchuan earthquake, which are spatially similar to co-seismic changes but reversed in sign. These features are also shown in the result of the satellite-based GRACE observation, after a height effect is corrected with GPS data.
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页码：61 / 70
页数：10
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