Comparison between natural and forced gradient tests to determine the vertical distribution of horizontal transport properties of aquifers

Daniel Ronen; Mordeckai Magaritz; Fred J. Molz

doi:10.1029/91WR00332

Comparison between natural and forced gradient tests to determine the vertical distribution of horizontal transport properties of aquifers

Daniel Ronen, Mordeckai Magaritz, Fred J. Molz

Zuckerberg Institute for Water Research

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

A modified natural gradient point dilution test using a multilayer sampler was conducted in a 20‐m‐thick confined aquifer in a research field near Mobile, Alabama. The horizontal component of the specific discharge along the profile varies by an order of magnitude, from 2.0 to 21.1 m/yr. The modified point dilution test was capable of detecting very large q changes over small vertical intervals. The results obtained by the point dilution test agree with the results obtained in the same aquifer by a forced gradient tracer test over a distance of 6 m (Molz et al., 1988).

Original language	English
Pages (from-to)	1309-1314
Number of pages	6
Journal	Water Resources Research
Volume	27
Issue number	6
DOIs	https://doi.org/10.1029/91WR00332
State	Published - 1 Jan 1991

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Water Science and Technology

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title = "Comparison between natural and forced gradient tests to determine the vertical distribution of horizontal transport properties of aquifers",

abstract = "A modified natural gradient point dilution test using a multilayer sampler was conducted in a 20‐m‐thick confined aquifer in a research field near Mobile, Alabama. The horizontal component of the specific discharge along the profile varies by an order of magnitude, from 2.0 to 21.1 m/yr. The modified point dilution test was capable of detecting very large q changes over small vertical intervals. The results obtained by the point dilution test agree with the results obtained in the same aquifer by a forced gradient tracer test over a distance of 6 m (Molz et al., 1988).",

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AB - A modified natural gradient point dilution test using a multilayer sampler was conducted in a 20‐m‐thick confined aquifer in a research field near Mobile, Alabama. The horizontal component of the specific discharge along the profile varies by an order of magnitude, from 2.0 to 21.1 m/yr. The modified point dilution test was capable of detecting very large q changes over small vertical intervals. The results obtained by the point dilution test agree with the results obtained in the same aquifer by a forced gradient tracer test over a distance of 6 m (Molz et al., 1988).

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Comparison between natural and forced gradient tests to determine the vertical distribution of horizontal transport properties of aquifers

Abstract

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