[1]LIU Wei,SHI Zheming,LYU Shaojie,et al.Comparison of the Methods of Barometric Efficiency Estimation by Water Level:An Application to Gaoda Well in Yunnan[J].Journal of Seismological Research,2024,47(02):191-199.[doi:10.20015/j.cnki.ISSN1000-0666.2024.0010 ]
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Comparison of the Methods of Barometric Efficiency Estimation by Water Level:An Application to Gaoda Well in Yunnan

Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume: 47 Number of periods: 2024 02 Page number: 191-199 Column: Public date: 2023-12-01
Title:
Comparison of the Methods of Barometric Efficiency Estimation by Water Level:An Application to Gaoda Well in Yunnan
Author(s):
LIU Wei1; SHI Zheming1; LYU Shaojie1; QI Zhiyu1; YANG Peijie2
(1.School of Water Resources and Environment,China University of Geosciences,Beijing 100083,China)(2.Shandong Land and Space Ecological Restoration Center,Jinan 250014,Shandong,China)
Keywords:
stress field;  the grid-trial method;  the grid-search method;  confidence interval;  Hunan region
CLC:
P315.723
DOI:
10.20015/j.cnki.ISSN1000-0666.2024.0010
Abstract:
On the basis of the data of barometric pressure and water level in Gaoda Well in Yunnan from February 1,2019 to July 28,2020,we calculated the well's barometric-efficiency values with the Clark method,the Rahi method,the regression deconvolution method,and the Acworth method,and compared the calculated values from these four methods,so as to study the principles and difference of these four methods.The barometric-efficiency values were 0.4395,0.4968,0.6174 and 0.6654 respectively,and the average is 0.5548.The calculation of the Clark method and the Rahi method is simple and convenient,but the effect of time lag is neglected by these two methods.The variation of the barometric-efficiency values with lag time can be obtained by the regression deconvolution method,but this method is highly susceptible to the influence of signals like precipitation and evapotranspiration.The Acworth method takes into account the earth tide signal and avoids the interference of precipitation and evapotranspiration signals,but it is only applicable to confined and semi-confined aquifers.Finally,according to the characteristics and applicability of the four methods,we proposed suggestions for the selection of different methods of calculating the barometric efficiency under different conditions.
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