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Journal Article

Historical Development and Performance of Airborne Magnetic and Electromagnetic Systems for Mapping and Detection of Unexploded Ordnance Available to Purchase

William E Doll, T. Jeffrey Gamey, David T Bell, Les P Beard, Jacob R Sheehan, Jeannemarie Norton, J. Scott Holladay, James L. C Lee
Published: 01 March 2012
Journal of Environmental and Engineering Geophysics (2012) 17 (1): 1–17.
DOI: https://doi.org/10.2113/JEEG17.1.1
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Journal Article

Results of a high-resolution airborne TEM system demonstration for unexploded ordnance detection Available to Purchase

William E. Doll, T. Jeffrey Gamey, J. Scott Holladay, Jacob R. Sheehan, Jeannemarie Norton, Les P. Beard, James L. C. Lee, Andri E. Hanson, Raye M. Lahti
Journal: Geophysics
Published: 10 December 2010
Geophysics (2010) 75 (6): B211–B220.
DOI: https://doi.org/10.1190/1.3505817
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View PDF for article title, Results of a high-resolution airborne TEM system demonstration for unexploded ordnance detection
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Journal Article

Mapping Structures that Control Contaminant Migration using Helicopter Transient Electromagnetic Data Available to Purchase

Louise Pellerin, Les P. Beard, Wayne Mandell
Published: 01 June 2010
Journal of Environmental and Engineering Geophysics (2010) 15 (2): 65–75.
DOI: https://doi.org/10.2113/JEEG15.2.65
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Journal Article

Lightning-Induced Remanent Magnetic Anomalies in Low-Altitude Aeromagnetic Data Available to Purchase

Les P. Beard, Jeannemarie Norton, Jacob R. Sheehan
Published: 01 December 2009
Journal of Environmental and Engineering Geophysics (2009) 14 (4): 155–161.
DOI: https://doi.org/10.2113/JEEG14.4.155
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View PDF for article title, Lightning-Induced Remanent Magnetic Anomalies in Low-Altitude Aeromagnetic Data
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Journal Article

Advances in airborne geophysical systems for ordnance mapping and detection Available to Purchase

William E. Doll, T. Jeffrey Gamey, Les P. Beard, Jacob R. Sheehan, Jeannemarie Norton
Journal: The Leading Edge
Published: 01 November 2008
The Leading Edge (2008) 27 (11): 1463–1469.
DOI: https://doi.org/10.1190/1.3011018
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Journal Article

Results of an Airborne Vertical Magnetic Gradient Demonstration, New Mexico Available to Purchase

William E. Doll, Jacob R. Sheehan, T. Jeffrey Gamey, Les P. Beard, Jeannemarie Norton
Published: 01 September 2008
Journal of Environmental and Engineering Geophysics (2008) 13 (3): 277–290.
DOI: https://doi.org/10.2113/JEEG13.3.277
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Journal Article

Comparison of Performance of Airborne Magnetic and Transient Electromagnetic Systems for Ordnance Detection and Mapping Available to Purchase

Les P. Beard, William E. Doll, T. Jeffrey Gamey, J. Scott Holladay, James L.C. Lee, Nathan W. Eklund, Jacob R. Sheehan, Jeannemarie Norton
Published: 01 September 2008
Journal of Environmental and Engineering Geophysics (2008) 13 (3): 291–305.
DOI: https://doi.org/10.2113/JEEG13.3.291
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View PDF for article title, Comparison of Performance of Airborne Magnetic and Transient Electromagnetic Systems for Ordnance Detection and Mapping
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Journal Article

UXO Time-Constant Estimation from Helicopter-Borne TEM Data Available to Purchase

J. Scott Holladay, William E. Doll, Les P. Beard, James L.C. Lee, David T. Bell
Published: 01 March 2006
Journal of Environmental and Engineering Geophysics (2006) 11 (1): 43–52.
DOI: https://doi.org/10.2113/JEEG11.1.43
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Journal Article

Field tests of an experimental helicopter time-domain electromagnetic system for unexploded ordnance detection Available to Purchase

Les P. Beard, William E. Doll, J. Scott Holladay, T. Jeffrey Gamey, James L.C Lee, David T. Bell
Journal: Geophysics
Published: 06 February 2004
Geophysics (2004) 69 (3): 664–673.
DOI: https://doi.org/10.1190/1.1759452
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Journal Article

Simultaneous inversion of airborne electromagnetic data for resistivity and magnetic permeability Available to Purchase

Les P. Beard, Jonathan E. Nyquist
Journal: Geophysics
Published: 01 October 1998
Geophysics (1998) 63 (5): 1556–1564.
DOI: https://doi.org/10.1190/1.1444452
View PDF for article title, Simultaneous inversion of airborne electromagnetic data for resistivity and magnetic permeability
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Journal Article

Investigating the resolution of IP arrays using inverse theory; discussion and reply Available to Purchase

Jose E. Arce, Les P. Beard
Journal: Geophysics
Published: 01 August 1996
Geophysics (1996) 61 (4): 1228–1229.
DOI: https://doi.org/10.1190/1.1444041
View PDF for article title, Investigating the resolution of IP arrays using inverse theory; discussion and reply
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Journal Article

Fast resistivity/IP inversion using a low-constant approximation Available to Purchase

Les P. Beard, Gerald W. Hohmann, Alan C. Tripp
Journal: Geophysics
Published: 01 February 1996
Geophysics (1996) 61 (1): 169–179.
DOI: https://doi.org/10.1190/1.1443937
View PDF for article title, Fast resistivity/IP inversion using a low-constant approximation
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Journal Article

Investigating the resolution of IP arrays using inverse theory Available to Purchase

Les P. Beard, Alan C. Tripp
Journal: Geophysics
Published: 01 October 1995
Geophysics (1995) 60 (5): 1326–1341.
DOI: https://doi.org/10.1190/1.1443869
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