Abstract: The barometric efficiency was calculated with three kinds of methods and the spectral analysis and harmonic analysis were made of hydrograph and microbarograph records from the Ta-Yuan well. The porosity n, matrix bulk modulus E_m, and specific storage S_s of the aquifer were estimated.

Key words: Underground water, Earth tide, Beijing, Barometric efficiency

摘要： 对塔院井地下水水位微动态资料和气压观测资料,采用三种方法计算了气压效率,作了谱分析和调和分析,并利用所得结果求出了该井所在含水层的水文地质参数。

关键词: 地下水, 固体潮, 北京, 气压效率