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A comparison of the inductive-limit footprints of airborne electromagnetic configurations


Reid, JE and Vrbacich, J, A comparison of the inductive-limit footprints of airborne electromagnetic configurations, Geophysics, 69, (5) pp. 1229-1239. ISSN 0016-8033 (2004) [Refereed Article]

DOI: doi:10.1190/1.1801939


An inductive-limit model has been used to determine footprint sizes for a variety of common airborne electromagnetic-survey geometries.The model accounts both for variations in the height and orientation of the electromagnetic transmitter, and for electromagnetic coupling between the induced current system and the receiver. Horizontal magnetic-dipole transmitters are shown to have a smaller footprint than vertical magnetic-dipole sources. We show that footprint sizes for the vertical coaxial and vertical coplanar geometries are essentially identical, provided the transmitter-receiver separation is much less than the transmitter height. The inductive-limit horizontal-component footprint for a fixed-wing horizontal-loop transmitter with a towed-bird receiver is shown to be two-thirds of that for the vertical component. © 2004 Society of Exploration Geophysicists. All rights reserved.

Item Details

Item Type:Refereed Article
Research Division:Earth Sciences
Research Group:Geophysics
Research Field:Electrical and electromagnetic methods in geophysics
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the earth sciences
UTAS Author:Reid, JE (Dr James Reid)
ID Code:32665
Year Published:2004
Web of Science® Times Cited:39
Deposited By:Earth Sciences
Deposited On:2004-08-01
Last Modified:2005-06-01

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