Generalized Analytical Solutions for Groundwater Head in a Horizontal Aquifer in the Presence of Subsurface Drains
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VIEW THE REPLYPublication: Journal of Irrigation and Drainage Engineering
Volume 135, Issue 3
Abstract
Generalized analytical solutions for groundwater head in horizontal aquifers in the presence of parallel subsurface drains are obtained considering a transient rate of recharge as a power series (polynomial) function and depth-dependent rate of evapotranspiration. A function, new to analytical drainage studies, is proposed for correctly representing the depth-dependent rate of evapotranspiration. The solutions are obtained considering the practical situation of drains placed at a shallow depth in a considerable depth of aquifer. Two conditions of large and small saturated thicknesses in comparison to the changes in groundwater head are considered. A mathematical criterion is proposed to distinguish between large and small saturated thicknesses.
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Acknowledgments
The writer is grateful to the reviewers for their very critical and fundamental review of the manuscript.
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© 2009 ASCE.
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Received: Feb 6, 2008
Accepted: Oct 23, 2008
Published online: May 15, 2009
Published in print: Jun 2009
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