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Utilization of the Hantush Solution for the Simultaneous Determination of Aquifer Parameters
Author(s) -
Chen Xunhong,
Ayers Jerry F.
Publication year - 1997
Publication title -
groundwater
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.84
H-Index - 94
eISSN - 1745-6584
pISSN - 0017-467X
DOI - 10.1111/j.1745-6584.1997.tb00143.x
Subject(s) - aquifer , geology , hydraulic conductivity , nonlinear system , drawdown (hydrology) , specific storage , aquifer test , soil science , geotechnical engineering , taylor series , field (mathematics) , petroleum engineering , mechanics , groundwater , mathematics , mathematical analysis , physics , quantum mechanics , groundwater recharge , soil water , pure mathematics
A method is presented to determine aquifer parameters simultaneously and uniquely based on time‐drawdown data collected from a single observation well in the vicinity of a pumping well partially penetrating a confined leaky aquifer. The Hantush solution is analyzed inversely for the identification of hydraulic properties using the Taylor series and a nonlinear least squares method. Aquifer parameters investigated include vertical and horizontal hydraulic conductivities, storage coefficient, and the leakage factor of the overlying aquitard. The developed method is verified using a hypothetical example and is applied to a field case. Error limits between the determined and true parameter values can be less than 0.1% depending on the quality of the field data.