| Gravitational effect of water circulation in the northwest Yunnan |
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| 作者姓名： | 贾民育 孙少安 项爱民 刘冬至 |
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| 作者单位： | Institute of Seismology，State Seismological Bureau，Wuhan 430071，China |
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| 摘 要： | ＧｒａｖｉｔａｔｉｏｎａｌｅｆｆｅｃｔｏｆｗａｔｅｒｃｉｒｃｕｌａｔｉｏｎｉｎｔｈｅｎｏｒｔｈｗｅｓｔＹｕｎｎａｎＭｉｎ－ＹｕＪＩＡ；（贾民育）Ｓｈａｏ－ＡｎＳＵＮ；（孙少安）Ａｉ－ＭｉｎＸＩＡＮＧ；（项爱民）ａｎｄＤｏｎｇ－ＺｈｉＬＩＵ（刘冬至）（...
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| 收稿时间： | 18 May 1994 |
| 修稿时间： | 22 November 1994 |
Gravitational effect of water circulation in the northwest Yunnan |
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| Min-Yu JIA,Shao-An SUN,Ai-Min XIANG, and Dong-ZhiLIU.Gravitational effect of water circulation in the northwest Yunnan[J].Acta Seismologica Sinica(English Edition),1995,8(3):419-426. |
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| Authors: | Min-Yu JIA Shao-An SUN Ai-Min XIANG and Dong-ZhiLIU |
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| Institution: | (1) Institute of Seismology, State Seismological Bureau, 430071 Wuhan, China |
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| Abstract: | Water circulation is the main disturbance source against precise gravimetry measurement which is one of the principal means
of geodynamic study. Some scientists studied the disturbance of water level changes in lakes and rivers and groundwater activities
on gravity field. Taking water circulation as a whole and combining it with the hydrogeological conditions in northwest Yunnan
mountainous area and the measured gravity data, this paper studies the features, connections of water circulation in atmosphere,
on surface and under ground and its effect on gravimetric data. The main conclusions are as follows: 1) The water circulation
in atmosphere has little direct disturbance on gravity field; 2) The change of lake water level may cause gravitational effect
of (10–20)×10−8 m · s−2; 3) In the NW Yunnan, types of the groundwater are various, and its changes are complicated, it is necessary to study point
by point. In general, its disturbance on gravity field in this region is about 10×10−8 m · s−2, less than that in plain area. |
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| Keywords: | earthquake prediction test site gravitational effect Yunnan water circulation |
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