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Title:: Advance in the Groundwater Level Response to Barometric Pressure and Earth Tide

Author(s):: HE Guanru; SHI Zheming; (School of Water Resources and Environment,China University of Geosciences,Beijing 100083,China)

Keywords:: water level; barometric response; Earth tide; hydraulic properties

摘要:: 分析地下水对气压和固体潮的响应可以获得多项水文地质参数和含水系统特性指标。通过收集国内外相关研究,系统论述了基于地下水对大气压和固体潮响应来获取含水层系统参数的方法。介绍了传递函数计算、谐波分析及回归反卷积等计算气压效率的方法; 介绍了利用气压效率与固体潮响应模型计算含水层水力参数的方法。结果表明:相比于传统水文地质调查手段,地下水气压和固体潮响应方法更简便高效,能够深入了解水力特性的空间和时间变化规律,可用于水位校正、含水层性质评估、水力参数计算以及评估地震对含水层造成的影响等。

Abstract:: Numerous observations and studies have shown that groundwater can record clear signals from atmospheric pressure and Earth tide.Analysis of groundwater response to atmospheric pressure and Earth tide will help infer hydrogeological parameters and characterize the aquifer system.In this paper we reviewed the methods of obtaining aquifer system parameters based on groundwater response to atmospheric pressure and Earth tide,introduced methods of calculating barometric efficiency such as transfer function calculation,harmonic analysis and regression deconvolution.We further reviewed the method of inferring aquifer hydraulic parameters by groundwater level in response to barometric efficiency and tidal response.Compared with the traditional hydrogeological investigation methods,the new method is much simpler and more efficient,and it can provide insight on the spatial and temporal variation patterns of hydraulic properties,and can be used to correct water level measurement,infer aquifer property,and evaluate the impact of earthquakes on aquifers.