Sensitivity Analysis of Flow in Multilayered Leaky Aquifer Systems
Publication: Journal of Hydraulic Engineering
Volume 122, Issue 1
Abstract
The sensitivity of drawdown prediction to the uncertainty in estimating the hydraulic properties of multiple leaky aquifer systems is studied by first-order sensitivity analysis. A new set of dimensionless parameters is suggested to reduce the amount of sensitivity coefficient calculations. The procedure is illustrated for three aquifer configurations pumped by one well: one aquifer with impermeable boundaries (Theis case), one aquifer with two aquitards, and two aquifers with one aquitard. The results allow one to assess the relative contribution of uncertainty of each hydraulic property on the accuracy of predicting drawdown and to reduce the number of parameters that influence uncertainty. The methodology and results may be employed when margins of confidence of the predicted drawdown are needed.
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Information
Published In
Journal of Hydraulic Engineering
Volume 122 • Issue 1 • January 1996
Pages: 41 - 45
Copyright
Copyright © 1996 American Society of Civil Engineers.
History
Published online: Jan 1, 1996
Published in print: Jan 1996
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