Creating 3D images of the subsurface from high resolution towed transient electromagnetic data

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Creating 3D images of the subsurface from high resolution towed transient electromagnetic data. / Auken, Esben; Christiansen, Anders Vest; Pedersen, Jesper B.; Foged, Nikolaj; Eiskjær, Tore.

2019. 4924-4927 Paper præsenteret ved 88th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2018, Anaheim, USA.

Publikation: KonferencebidragPaperForskningpeer review

Harvard

APA

Auken, E., Christiansen, A. V., Pedersen, J. B., Foged, N., & Eiskjær, T. (2019). Creating 3D images of the subsurface from high resolution towed transient electromagnetic data. 4924-4927. Paper præsenteret ved 88th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2018, Anaheim, USA. https://doi.org/10.1190/segam2018-2998489.1

CBE

Auken E, Christiansen AV, Pedersen JB, Foged N, Eiskjær T. 2019. Creating 3D images of the subsurface from high resolution towed transient electromagnetic data. Paper præsenteret ved 88th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2018, Anaheim, USA. https://doi.org/10.1190/segam2018-2998489.1

MLA

Vancouver

Auken E, Christiansen AV, Pedersen JB, Foged N, Eiskjær T. Creating 3D images of the subsurface from high resolution towed transient electromagnetic data. 2019. Paper præsenteret ved 88th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2018, Anaheim, USA. https://doi.org/10.1190/segam2018-2998489.1

Author

Auken, Esben ; Christiansen, Anders Vest ; Pedersen, Jesper B. ; Foged, Nikolaj ; Eiskjær, Tore. / Creating 3D images of the subsurface from high resolution towed transient electromagnetic data. Paper præsenteret ved 88th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2018, Anaheim, USA.4 s.

Bibtex

@conference{bfb1caa610a443be8fb30ac8993a8c6a,
title = "Creating 3D images of the subsurface from high resolution towed transient electromagnetic data",
abstract = "The top 30 - 50 m of the subsurface are critical for infrastructure, water supply, artificial infiltration, farming, waste deposit, construction, etc.. Yet, the tools for imaging this zone are limited to boreholes, electrical resistivity imagining (ERT) or other relatively expensive methods with a limited applicability for areas larger than a few hectares. We present a new highly efficient towed transient electromagnetic system, tTEM, which bridges the gap in coverage and resolution between point measurements and airborne electromagnetics. The system yields images in full 3D with a resolution down to 10 x 10 m. The system is towed by and All-Terrain Vehicle (ATV), uses a 2 x 4 m transmitter coil and has a z-component receiver 9 m offset from the transmitter. The first bias free gate is as early as 4 μs from ramp beginning . The turn-off time is 2.6 μs. Data are processed and inverted using methods adopted from airborne electromagnetics. We discuss the system design and present a case study where the system has been used to evaluate the potential contamination risk from a pesticide point source contamination to four water extraction wells.",
author = "Esben Auken and Christiansen, {Anders Vest} and Pedersen, {Jesper B.} and Nikolaj Foged and Tore Eiskj{\ae}r",
year = "2019",
month = "1",
day = "1",
doi = "10.1190/segam2018-2998489.1",
language = "English",
pages = "4924--4927",
note = "88th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2018 ; Conference date: 14-10-2018 Through 19-10-2018",

}

RIS

TY - CONF

T1 - Creating 3D images of the subsurface from high resolution towed transient electromagnetic data

AU - Auken, Esben

AU - Christiansen, Anders Vest

AU - Pedersen, Jesper B.

AU - Foged, Nikolaj

AU - Eiskjær, Tore

PY - 2019/1/1

Y1 - 2019/1/1

N2 - The top 30 - 50 m of the subsurface are critical for infrastructure, water supply, artificial infiltration, farming, waste deposit, construction, etc.. Yet, the tools for imaging this zone are limited to boreholes, electrical resistivity imagining (ERT) or other relatively expensive methods with a limited applicability for areas larger than a few hectares. We present a new highly efficient towed transient electromagnetic system, tTEM, which bridges the gap in coverage and resolution between point measurements and airborne electromagnetics. The system yields images in full 3D with a resolution down to 10 x 10 m. The system is towed by and All-Terrain Vehicle (ATV), uses a 2 x 4 m transmitter coil and has a z-component receiver 9 m offset from the transmitter. The first bias free gate is as early as 4 μs from ramp beginning . The turn-off time is 2.6 μs. Data are processed and inverted using methods adopted from airborne electromagnetics. We discuss the system design and present a case study where the system has been used to evaluate the potential contamination risk from a pesticide point source contamination to four water extraction wells.

AB - The top 30 - 50 m of the subsurface are critical for infrastructure, water supply, artificial infiltration, farming, waste deposit, construction, etc.. Yet, the tools for imaging this zone are limited to boreholes, electrical resistivity imagining (ERT) or other relatively expensive methods with a limited applicability for areas larger than a few hectares. We present a new highly efficient towed transient electromagnetic system, tTEM, which bridges the gap in coverage and resolution between point measurements and airborne electromagnetics. The system yields images in full 3D with a resolution down to 10 x 10 m. The system is towed by and All-Terrain Vehicle (ATV), uses a 2 x 4 m transmitter coil and has a z-component receiver 9 m offset from the transmitter. The first bias free gate is as early as 4 μs from ramp beginning . The turn-off time is 2.6 μs. Data are processed and inverted using methods adopted from airborne electromagnetics. We discuss the system design and present a case study where the system has been used to evaluate the potential contamination risk from a pesticide point source contamination to four water extraction wells.

UR - http://www.scopus.com/inward/record.url?scp=85059385130&partnerID=8YFLogxK

U2 - 10.1190/segam2018-2998489.1

DO - 10.1190/segam2018-2998489.1

M3 - Paper

SP - 4924

EP - 4927

ER -