Aquifer Parameters from Drawdowns in Large-Diameter Wells: Unsteady Pumping
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VIEW THE REPLYPublication: Journal of Hydrologic Engineering
Volume 13, Issue 7
Abstract
An optimization method is proposed for estimating transmissivity, storage coefficient, and effective well radius from drawdowns in large-diameter wells. Unsteady pumping is considered; any variation in pumping discharge can be accounted for. Pumping and residual drawdowns can be analyzed simultaneously using the new method. The application of the method is illustrated through the examples of prior studies. The new method reliably estimates the parameters. For the examples considered, the estimates of transmissivity and effective radius of well are more accurate than the estimate of storage coefficient. The proposed method is superior to the prior method because it is objective, more quantitative, and more general.
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References
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Information
Published In
Journal of Hydrologic Engineering
Volume 13 • Issue 7 • July 2008
Pages: 636 - 640
Copyright
© 2008 ASCE.
History
Received: Nov 30, 2004
Accepted: Nov 16, 2007
Published online: Jul 1, 2008
Published in print: Jul 2008
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