Analytical solution for capture and catchment zones of a well located on a groundwater divide.

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Samenvatting

An analytical solution is presented for capture and catchment zones of a well located on a groundwater divide in a recharged aquifer. The analytical solution is derived for a homogeneous, isotropic, and uniformly thick leaky aquifer. It is shown that streamlines and well-catchment area have elongated shapes tending to infinity along the groundwater divide, and do not depend on any aquifer property, but only on the ratio of the well-pumping rate and aquifer recharge flux. Isochrones delineating capture zones also depend on the mean residence time of the groundwater, which is independent of the well-pumping rate. The capture and catchment zones differ significantly in both size and shape from the classical theory that ignores recharge. In particular, the catchment zone is wider and has a finite extent.
Originele taal-2English
Pagina's (van-tot)1-5
Aantal pagina's5
TijdschriftWater Resources Research
Volume50
Nummer van het tijdschrift1
DOI's
StatusPublished - 2014

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