Incorporating uncertainty into groundwater salinity mapping using AEM data

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Abstract

Airborne electromagnetic surveys provide spatially extensive resistivity information that can be useful for groundwater salinity mapping; however, the transformation from geophysical data to salinity interpretations carries uncertainty. We compare two quantitative approaches to salinity mapping recently applied to address water resource management objectives: the location of the depth to the freshwater-brine interface at Paradox Valley, Colorado, and 3D categorical mapping of fresh, brackish, and saline groundwater near oil and gas fields of the San Joaquin Valley, California. These different approaches were driven by a combination of the availability of water quality observations, the hydrogeologic setting, and study objectives.

Publication type Conference Paper
Publication Subtype Conference Paper
Title Incorporating uncertainty into groundwater salinity mapping using AEM data
DOI 10.1190/segam2021-3584073.1
Year Published 2021
Language English
Publisher Society of Exploration Geophysicists
Contributing office(s) Crustal Geophysics and Geochemistry Science Center, Geology, Geophysics, and Geochemistry Science Center
Description 5 p.
Larger Work Type Book
Larger Work Subtype Conference publication
Larger Work Title First international meeting for applied geoscience & energy expanded abstracts
First page 3105
Last page 3109
Conference Title First International Meeting for Applied Geoscience & Energy (IMAGE ’21)
Conference Date Sep 26-Oct1, 2021
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