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Calculating Ground Water Transit Time of Horizontal Flow through Leaky Aquifers

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Abstract

The calculation of ground water transit times is one important factor in ground water protection. In this paper, we present an analytical solution for the transit time for a Dupuit-type flow system applicable to saturated flow through a horizontal leaky aquifer discharging to a downgradient fixed-head boundary under steady-state conditions. We investigate the influence of leakage when comparing the resulting travel times of our model based on head-dependent leakage with the commonly used model with no leakage and a simplified model with constant leakage. The results show significant differences in the position of the water divide and transit time, suggesting that leakage cannot be ignored.
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Document Type: Research Article

Affiliations: Hamburg University of Technology, Institute of Water Resources and Water Supply, Schwarzenbergstrasse 95, 21073 Hamburg, Germany;, Email: [email protected]

Publication date: 2008-01-01

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