3D Joint hydrogeophysical inversion using similarity measures

Klara Steklova and Eldad Haber

Applied Mathematics and Computation, 2019, vol. 357, issue C, 338-356

Abstract: Parameter and state estimation for groundwater models within a coupled hydrogeophysical framework has become common in the last few years. It has been shown that such estimates are usually better than those from a single data inversion and different approaches have been suggested in literature to combine the essentially two different modalities in order to obtain a single estimate for the property of interest. However, most of the coupled hydrogeophysical frameworks rely on implementing some petrophysical relationships to couple the groundwater and geophysical variable. Such relationships are usually uncertain and hard to parametrize for a large region and can produce mass errors in the final estimates. Replacing the fixed petrophysical relationship by a more loose similarity constraint is therefore an appealing alternative for coupling the two different models.

Keywords: Hydrogeophysics; Joint inversion; Structure similarity; Flow and solute transport; BCDM (search for similar items in EconPapers)
Date: 2019
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:apmaco:v:357:y:2019:i:c:p:338-356

DOI: 10.1016/j.amc.2017.09.025

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