Comparison of near-surface sensitivity functions of airborne and ground-based em systems

L. M. Madsen, K. V. Lassen, E. Auken, A. V. Christiansen

Publikation: Bidrag til bog/rapport/konferenceproceedingsKonferenceartikel i proceedingspeer review

3 Citationer (Scopus)

Abstrakt

Knowledge of the sensitivity function of an electromagnetic (EM) system helps to assess the advantages and shortcomings of the system set-up. We have computed 3D sensitivity functions of three different EM systems - one airborne (SkyTEM) and two ground-based systems (tTEM and GCM) - in order to compare the sensitivity distribution of the different transmitter-receiver set-ups. The results show that the GCM has the highest sensitivity to near-surface structures, but also has a very limited footprint depth. The SkyTEM and tTEM systems have comparable sensitivities vertically in the ground with a 90% footprint depth around 5 m for early time measurements. However, the sensitivity of the SkyTEM system is distributed must wider horizontally than the tTEM.

OriginalsprogEngelsk
Titel2nd European Airborne Electromagnetics Conference 2017, Held at Near Surface Geoscience Conference and Exhibition 2017
ForlagEuropean Association of Geoscientists and Engineers, EAGE
Sider11-15
Antal sider5
ISBN (Elektronisk)9781510850804
DOI
StatusUdgivet - 2017
Begivenhed2nd European Airborne Electromagnetics Conference 2017 - Malmo, Sverige
Varighed: 3 sep. 20177 sep. 2017

Publikationsserier

Navn2nd European Airborne Electromagnetics Conference 2017, Held at Near Surface Geoscience Conference and Exhibition 2017

Konference

Konference2nd European Airborne Electromagnetics Conference 2017
Land/OmrådeSverige
ByMalmo
Periode3/09/177/09/17

Programområde

  • Programområde 2: Vandressourcer

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