Geophysical characterisation of the groundwater-surface water interface

McLachlan, P.J. and Chambers, J.E. and Uhlemann, S.S. and Binley, A. (2017) Geophysical characterisation of the groundwater-surface water interface. Advances in Water Resources, 109. pp. 302-319. ISSN 0309-1708

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Abstract

Interactions between groundwater (GW) and surface water (SW) have important implications for water quantity, water quality, and ecological health. The subsurface region proximal to SW bodies, the GW-SW interface, is crucial as it actively regulates the transfer of nutrients, contaminants, and water between GW systems and SW environments. However, geological, hydrological, and biogeochemical heterogeneity in the GW-SW interface makes it difficult to characterise with direct observations. Over the past two decades geophysics has been increasingly used to characterise spatial and temporal variability throughout the GW-SW interface. Geophysics is a powerful tool in evaluating structural heterogeneity, revealing zones of GW discharge, and monitoring hydrological processes. Geophysics should be used alongside traditional hydrological and biogeochemical methods to provide additional information about the subsurface. Further integration of commonly used geophysical techniques, and adoption of emerging techniques, has the potential to improve understanding of the properties and processes of the GW-SW interface, and ultimately the implications for water quality and environmental health.

Item Type:
Journal Article
Journal or Publication Title:
Advances in Water Resources
Additional Information:
This is the author’s version of a work that was accepted for publication in Advances in Water Resources. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Advances in Water Resources, 109, 2017 DOI: 10.1016/j.advwatres.2017.09.016
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2300/2312
Subjects:
ID Code:
87937
Deposited By:
Deposited On:
13 Oct 2017 15:00
Refereed?:
Yes
Published?:
Published
Last Modified:
27 Nov 2020 04:54