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Proceedings Paper

Soil moisture and electrical conductivity prediction and their implication for landmine detection technologies
Author(s): T. John Katsube; Pierre K. Keating; Heather McNairn; Yogadhish Das; Ron DiLabio; Vern Singhroy; Shauna Connell-Madore; Mel E. Best; James Hunter; Rod Klassen; Larry Dyke
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Paper Abstract

Physical properties, such as soil moisture, magnetic susceptibility and electrical conductivity (EC) are sources of signal interference for many landmine detectors. Soil EC mechanisms and their relationship to moisture are being studied to increase the soil EC prediction accuracy by radar remote sensing, airborne and ground electromagnetic (EM) methods. This is required for effective detection operations in problematic regions of the world. Results indicate that responses of free water and bound water to drying rates and EC are very different, to the extent that moist clay-poor soil may have lower EC compared to dryer clay-rich soil at certain moisture contents. These suggest that soil EC prediction should start with analyses of radar remote sensing data acquired on separate days, followed by high frequency airborne EM surveys, and validation by ground EM surveys and laboratory soil sample analyses. Due to the various expertise required, a team of relevant experts (e.g., geology, geophysics, remote sensing, petrophysics, agriculture, soil physics, electrical engineering and demining) should be organized to provide information on detector viability for demining in problematic areas in the world. It is also proposed to develop wide frequency band EM systems to provide much of the required information in one measurement.

Paper Details

Date Published: 21 September 2004
PDF: 14 pages
Proc. SPIE 5415, Detection and Remediation Technologies for Mines and Minelike Targets IX, (21 September 2004); doi: 10.1117/12.542521
Show Author Affiliations
T. John Katsube, Geological Survey of Canada (Canada)
Pierre K. Keating, Geological Survey of Canada (Canada)
Heather McNairn, Agriculture and Agri-Food Canada (Canada)
Yogadhish Das, Defence Research and Development Canada/Suffield (Canada)
Ron DiLabio, Geological Survey of Canada (Canada)
Vern Singhroy, Canada Ctr. for Remote Sensing (Canada)
Shauna Connell-Madore, Geological Survey of Canada (Canada)
Mel E. Best, Bemex Consulting International (Canada)
James Hunter, Geological Survey of Canada (Canada)
Rod Klassen, Geological Survey of Canada (Canada)
Larry Dyke, Geological Survey of Canada (Canada)

Published in SPIE Proceedings Vol. 5415:
Detection and Remediation Technologies for Mines and Minelike Targets IX
Russell S. Harmon; J. Thomas Broach; John H. Holloway, Editor(s)

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