Airborne and ground-based TEM mapping in polar regions — Antarctica cases

N. Foged; Line Meldgaard Madsen; Slawek M. S.M. Tulaczyk; Denys Grombacher

doi:10.3997/2214-4609.202120141

Airborne and ground-based TEM mapping in polar regions — Antarctica cases

N. Foged, Line Meldgaard Madsen, Slawek M. S.M. Tulaczyk, Denys Grombacher

Institut for Geoscience

Publikation: Konferencebidrag › Konferenceabstrakt til konference › Forskning › peer review

Abstract

We present transient electromagnetics (TEM) mapping results from different geological targets in polar environments, primary from two airborne TEM surveys and one ground -based TEM mapping campaign conducted in the McMurdo Dry Valleys and on the Ross Ice Shelf in Antarctica. With the different cases, we demonstrate that the TEM methods are well suited to image different subsurface structures in polar regions as they can provide valuable information on ice thicknesses and discriminate between e.g. glacier ice/sea ice, frozen/unfrozen sea water, frozen/unfrozen water systems (permafrost), and bedrock/glacier ice. We further demonstrate that a high data and instrumentation quality, as the ground-based and airborne TEM data produces consistent results.

Originalsprog	Engelsk
Publikationsdato	2021
Antal sider	5
DOI	https://doi.org/10.3997/2214-4609.202120141
Status	Udgivet - 2021
Begivenhed	EAGE Near Surface Geoscience 2021 - Bordeaux, Frankrig Varighed: 30 aug. 2021 → 1 sep. 2021 https://eage.eventsair.com/nsg2021/

Konference

Konference	EAGE Near Surface Geoscience 2021
Land/Område	Frankrig
By	Bordeaux
Periode	30/08/2021 → 01/09/2021
Internetadresse	https://eage.eventsair.com/nsg2021/

Adgang til dokumentet

10.3997/2214-4609.202120141

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Link to publication in Scopus

Citationsformater

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abstract = "We present transient electromagnetics (TEM) mapping results from different geological targets in polar environments, primary from two airborne TEM surveys and one ground -based TEM mapping campaign conducted in the McMurdo Dry Valleys and on the Ross Ice Shelf in Antarctica. With the different cases, we demonstrate that the TEM methods are well suited to image different subsurface structures in polar regions as they can provide valuable information on ice thicknesses and discriminate between e.g. glacier ice/sea ice, frozen/unfrozen sea water, frozen/unfrozen water systems (permafrost), and bedrock/glacier ice. We further demonstrate that a high data and instrumentation quality, as the ground-based and airborne TEM data produces consistent results.",

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T1 - Airborne and ground-based TEM mapping in polar regions — Antarctica cases

AU - Foged, N.

AU - Meldgaard Madsen, Line

AU - Tulaczyk, Slawek M. S.M.

AU - Grombacher, Denys

PY - 2021

Y1 - 2021

N2 - We present transient electromagnetics (TEM) mapping results from different geological targets in polar environments, primary from two airborne TEM surveys and one ground -based TEM mapping campaign conducted in the McMurdo Dry Valleys and on the Ross Ice Shelf in Antarctica. With the different cases, we demonstrate that the TEM methods are well suited to image different subsurface structures in polar regions as they can provide valuable information on ice thicknesses and discriminate between e.g. glacier ice/sea ice, frozen/unfrozen sea water, frozen/unfrozen water systems (permafrost), and bedrock/glacier ice. We further demonstrate that a high data and instrumentation quality, as the ground-based and airborne TEM data produces consistent results.

AB - We present transient electromagnetics (TEM) mapping results from different geological targets in polar environments, primary from two airborne TEM surveys and one ground -based TEM mapping campaign conducted in the McMurdo Dry Valleys and on the Ross Ice Shelf in Antarctica. With the different cases, we demonstrate that the TEM methods are well suited to image different subsurface structures in polar regions as they can provide valuable information on ice thicknesses and discriminate between e.g. glacier ice/sea ice, frozen/unfrozen sea water, frozen/unfrozen water systems (permafrost), and bedrock/glacier ice. We further demonstrate that a high data and instrumentation quality, as the ground-based and airborne TEM data produces consistent results.

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DO - 10.3997/2214-4609.202120141

M3 - Conference abstract for conference

T2 - EAGE Near Surface Geoscience 2021

Y2 - 30 August 2021 through 1 September 2021

ER -