Influence of Groundwater Funnel on Relative Gravimetric Data in Changyi-Xinhe Area
Abstract Based on the relative gravimetric data measured by LCR-G and CG-5 relative gravimeter and hydrological data in Changyi-Xinhe area from 1991 to 2019, we find that: 1) The increasing relative gravimetric data from 2009 to 2018 is mainly caused by the decline of groundwater level in Changyi city, and the maximum effect can reach to 132 μGal. 2) The relative gravity decreased by 72 μGal cumulatively from May 2014 to March 2016, and it recovered rapidly from March 2016 to May 2018. It is not clear whether this phenomenon is related to the dynamics.
Key words :
relative gravimetry
gravity changes
groundwater funnel
water level variation
groundwater correction
Cite this article:
LI Shupeng,ZHANG Chunpeng,LI Guoyi et al. Influence of Groundwater Funnel on Relative Gravimetric Data in Changyi-Xinhe Area[J]. jgg, 2020, 40(11): 1129-1132.
LI Shupeng,ZHANG Chunpeng,LI Guoyi et al. Influence of Groundwater Funnel on Relative Gravimetric Data in Changyi-Xinhe Area[J]. jgg, 2020, 40(11): 1129-1132.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2020/V40/I11/1129
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