Accession Number : AD1014541


Title :   Evaluation of Electromagnetic Induction (EMI) Resistivity Technologies for Assessing Permafrost Geomorphologies


Descriptive Note : Technical Report


Corporate Author : Cold Regions Research and Engineering Laboratory (CRREL) Hanover United States


Personal Author(s) : Barrowes,Benjamin E ; Douglas,Thomas A ; Barrowes,Benjamin E ; Douglas,Thomas A


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1014541.pdf


Report Date : 01 Aug 2016


Pagination or Media Count : 45


Abstract : Effective and efficient mapping of permafrost subsurface composition at scales relevant to the design and maintenance of horizontal and vertical infrastructure has been a long-standing challenge. Of utmost utility would be the development of standoff measurement techniques that could discern at the meter to submeter spatial scale and up to 10 m into the subsurface the presence or absence of ice features. Ground-based geophysical measurement techniques, including ground penetrating radar, borehole logging, and electrical resistivity, have been used to interrogate the subsurface in permafrost terrains at the meters to kilometers scales. Airborne measurement techniques have broad applicability at the larger, kilometers to tens of kilometers scale and could support linear infrastructure development and terrain mapping. However, there is a broad need for cost-effective airborne geophysical techniques to obtain high-resolution measurements of specific areas of interest. This report explores the potential application of airborne EMI methods for the investigation and mapping of permafrost and reviews current Engineer Research and Development Center (ERDC) EMI survey capabilities and new opportunities, including the development of a new medium-scale autonomous EMI instrument.


Descriptors :   Electromagnetic induction sensors , Permafrost , Remote sensing , Geomorphology , aerial surveys , geological surveys , Arctic regions , climate processes , thawing , case studies


Subject Categories : Snow, Ice and Permafrost
      Cartography and Aerial Photography
      Magnetic & Electric Fld Detection & Detectors


Distribution Statement : APPROVED FOR PUBLIC RELEASE