Utilization of the Hantush solution for the simultaneous determination of aquifer parameters

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 o...

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Bibliographic Details
Published in:Ground water 1997-09, Vol.35 (5), p.751-756
Main Authors: Chen, X, Ayers, J.F
Format: Article
Language:English
Subjects:
Analysis
Aquifers
AQUITARD LEAKAGE FACTOR
CAPA FREATICA
CORRIENTES SUBTERRANEAS
COURANT SOUTERRAIN
Data collection
ENSAYO
EQUATIONS
Groundwater
GROUNDWATER FLOW
GROUNDWATER TABLE
HORIZONTAL HYDRAULIC CONDUCTIVITY
Management
MATEMATICAS
MATHEMATICS
MATHEMATIQUE
NAPPE SOUTERRAINE
Numerical analysis
OBSERVATION WELLS
POZOS
PUITS
PUMPING WELLS
Q1
SATURATED HYDRAULIC CONDUCTIVITY
Stone
STORAGE COEFFICIENT
TESTAGE
TESTING
VERTICAL HYDRAULIC CONDUCTIVITY
Water wells
Water, Underground
WELLS
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Summary: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
ISSN:0017-467X
1745-6584
DOI:10.1111/j.1745-6584.1997.tb00143.x