The influence of groundwater changes on gravity observations at jiufeng station in wuhan
文献类型：期刊论文
| 作者 | He Qian-Qian1,2; Luo Shao-Cong1; Sun He-Ping1; Xu Jian-Qiao1; Chen Xiao-Dong1 |
| 刊名 | Chinese journal of geophysics-chinese edition
 |
| 出版日期 | 2016-08-01 |
| 卷号 | 59期号:8页码:2765-2772 |
| 关键词 | Groundwater changes Hydrodynamic simulating method Superconducting gravimetric observations |
| ISSN号 | 0001-5733 |
| DOI | 10.6038/cjg20160804 |
| 通讯作者 | He qian-qian(hqq@asch.whigg.ac.cn) |
| 英文摘要 | In this paper, following the physical mechanism of groundwater infiltration, water level of a monitoring well and precipitation data were combined to simulate the water content variations of the soil surrounding the jiufeng superconductivity gravity (sg) station in wuhan by using an one-dimensional hydrodynamic simulating method. then, based on the variations of soil water content, the hydrological effects on gravity induced by groundwater changes were estimated. its peak-to-peak variation reaches up to 15.94 mu gal, which implies the necessity of correction for local groundwater changes when precise gravity observations are used to study long-periodic effects. the analysis in the frequency domain shows that the largest influence of groundwater changes on gravity appears in the annual band. good agreements are yielded between the estimated groundwater hydrological effects on gravity and the sg residuals (with a peak-to-peak variation of 12.73 mu gal) after correction for earth tides, atmospheric pressure, polar motion, etc., both in the time and frequency domains. this demonstrates that signal of the sg residuals is mainly from the local groundwater changes, and also validates the applicability of the hydrodynamic simulating method used in this paper. |
| WOS关键词 | SUPERCONDUCTING GRAVIMETER ; ABSOLUTE GRAVITY ; TIDE ; TIME ; DEFORMATION ; AQUIFER ; SERIES ; EARTH |
| WOS研究方向 | Geochemistry & Geophysics |
| WOS类目 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000381166400004 |
| 出版者 | SCIENCE PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2374430 |
| 专题 | 中国科学院大学 |
| 通讯作者 | He Qian-Qian |
| 作者单位 | 1.Chinese Acad Sci, Inst Geodesy & Geophys, State Key Lab Geodesy & Earths Dynam, Wuhan 430077, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | He Qian-Qian,Luo Shao-Cong,Sun He-Ping,et al. The influence of groundwater changes on gravity observations at jiufeng station in wuhan[J]. Chinese journal of geophysics-chinese edition,2016,59(8):2765-2772. |
| APA | He Qian-Qian,Luo Shao-Cong,Sun He-Ping,Xu Jian-Qiao,&Chen Xiao-Dong.(2016).The influence of groundwater changes on gravity observations at jiufeng station in wuhan.Chinese journal of geophysics-chinese edition,59(8),2765-2772. |
| MLA | He Qian-Qian,et al."The influence of groundwater changes on gravity observations at jiufeng station in wuhan".Chinese journal of geophysics-chinese edition 59.8(2016):2765-2772. |
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来源：中国科学院大学
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