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TTEM20AAR: A benchmark geophysical data set for unconsolidated fluvioglacial sediments

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Quaternary deposits are complex and heterogeneous. They contain some of the most abundant and extensively used aquifers. In order to improve the knowledge of the spatial heterogeneity of such deposits, we acquired a large (1500g ha) and dense (20g m spacing) time domain electromagnetic (TDEM) data set in the upper Aare Valley, Switzerland (available at 10.5281/zenodo.4269887;). TDEM is a fast and reliable method to measure the magnetic field directly related to the resistivity of the underground. In this paper, we present the inverted resistivity models derived from this acquisition. The depth of investigation ranges between 40 and 120g m, with an average data residual contained in the standard deviation of the data. These data can be used for many different purposes: from sedimentological interpretation of quaternary environments in alpine environments, geological and hydrogeological modeling, to benchmarking geophysical inversion techniques.

OriginalsprogEngelsk
TidsskriftEarth System Science Data
Vol/bind13
Nummer6
ISSN1866-3508
DOI
StatusUdgivet - 15 jun. 2021

Bibliografisk note

Funding Information:
Financial support. This research was supported by the Swiss National Science Foundation through the project Phenix (grant no. 182600).

Publisher Copyright:
© 2021 Alexis Neven et al.

Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.

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