Imaging of Ground Ice with Surface-Based Geophysics
Electrical properties of earth materials have profound differences due to the phase change of water to ice. This contrast is useful when using electro-magnetic methods to study permafrost terrains where frozen and thawed materials are intermixed. Engineering and science are in need of efficient, non...
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ftdtic:ADA621946 2023-05-15T15:55:49+02:00 Imaging of Ground Ice with Surface-Based Geophysics Bjella, Kevin Arcone, Steve Douglas, Thomas ENGINEER RESEARCH AND DEVELOPMENT CENTER HANOVER NH COLD REGIONS RESEARCH AND ENGINEERING LAB 2015-10 text/html http://www.dtic.mil/docs/citations/ADA621946 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA621946 en eng http://www.dtic.mil/docs/citations/ADA621946 Approved for public release; distribution is unlimited. DTIC Geology Geochemistry and Mineralogy Snow Ice and Permafrost Electricity and Magnetism *ELECTRICAL CONDUCTIVITY *GEOPHYSICS *ICE *TOMOGRAPHY DATA ACQUISITION EFFICIENCY ELECTRICAL PROPERTIES ELECTROMAGNETISM FIELD TESTS PERMAFROST SURFACES TERRAIN *GROUND ICE GROUND RESISTIVITY NON-INTRUSIVE GEOPHYSICAL METHODS TERRAIN CHARACTERISTICS ERT(ELECTRICAL RESISTIVITY TOMOGRAPHY) CCR(CAPACITIVE COUPLED RESISTIVITY) Text 2015 ftdtic 2016-02-24T18:48:29Z Electrical properties of earth materials have profound differences due to the phase change of water to ice. This contrast is useful when using electro-magnetic methods to study permafrost terrains where frozen and thawed materials are intermixed. Engineering and science are in need of efficient, non-invasive tools for imaging ice and sediment composition. Borehole information is often used to map ice in permafrost terrains; but it is time consuming, expensive, and can lead to over- or underquantification of ground ice. Advances in computing power have led to refined surface-based geophysical methods, and the goal of this study was to determine if the latest commercial technologies or system were promising for imaging ground ice and associated features and to compare the results across a variety of permafrost terrains. Electrical Resistivity Tomography (ERT), in particular, has been effective for imaging ground ice. ERT measures the ability of materials to conduct or resist an electric current. A variation of this method, capacitive coupled resistivity (CCR) offers the ability for continuous data collection while moving across the landscape at scales of meters to kilometers. This greatly enhances the cost efficiency, applicability, and overall usefulness of the techniques and provides the ability to view variations in permafrost ice content on these larger scales. The original document contains color images. Prepared in collaboration with the U.S. Army Engineer Research and Development Center (ERDC), Cold Regions Research and Engineering Laboratory (CRREL), Alaska Projects Office, Fort Wainwright, AK. Text Cold Regions Research and Engineering Laboratory Ice permafrost Alaska Defense Technical Information Center: DTIC Technical Reports database |
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Open Polar |
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Defense Technical Information Center: DTIC Technical Reports database |
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ftdtic |
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English |
topic |
Geology Geochemistry and Mineralogy Snow Ice and Permafrost Electricity and Magnetism *ELECTRICAL CONDUCTIVITY *GEOPHYSICS *ICE *TOMOGRAPHY DATA ACQUISITION EFFICIENCY ELECTRICAL PROPERTIES ELECTROMAGNETISM FIELD TESTS PERMAFROST SURFACES TERRAIN *GROUND ICE GROUND RESISTIVITY NON-INTRUSIVE GEOPHYSICAL METHODS TERRAIN CHARACTERISTICS ERT(ELECTRICAL RESISTIVITY TOMOGRAPHY) CCR(CAPACITIVE COUPLED RESISTIVITY) |
spellingShingle |
Geology Geochemistry and Mineralogy Snow Ice and Permafrost Electricity and Magnetism *ELECTRICAL CONDUCTIVITY *GEOPHYSICS *ICE *TOMOGRAPHY DATA ACQUISITION EFFICIENCY ELECTRICAL PROPERTIES ELECTROMAGNETISM FIELD TESTS PERMAFROST SURFACES TERRAIN *GROUND ICE GROUND RESISTIVITY NON-INTRUSIVE GEOPHYSICAL METHODS TERRAIN CHARACTERISTICS ERT(ELECTRICAL RESISTIVITY TOMOGRAPHY) CCR(CAPACITIVE COUPLED RESISTIVITY) Bjella, Kevin Arcone, Steve Douglas, Thomas Imaging of Ground Ice with Surface-Based Geophysics |
topic_facet |
Geology Geochemistry and Mineralogy Snow Ice and Permafrost Electricity and Magnetism *ELECTRICAL CONDUCTIVITY *GEOPHYSICS *ICE *TOMOGRAPHY DATA ACQUISITION EFFICIENCY ELECTRICAL PROPERTIES ELECTROMAGNETISM FIELD TESTS PERMAFROST SURFACES TERRAIN *GROUND ICE GROUND RESISTIVITY NON-INTRUSIVE GEOPHYSICAL METHODS TERRAIN CHARACTERISTICS ERT(ELECTRICAL RESISTIVITY TOMOGRAPHY) CCR(CAPACITIVE COUPLED RESISTIVITY) |
description |
Electrical properties of earth materials have profound differences due to the phase change of water to ice. This contrast is useful when using electro-magnetic methods to study permafrost terrains where frozen and thawed materials are intermixed. Engineering and science are in need of efficient, non-invasive tools for imaging ice and sediment composition. Borehole information is often used to map ice in permafrost terrains; but it is time consuming, expensive, and can lead to over- or underquantification of ground ice. Advances in computing power have led to refined surface-based geophysical methods, and the goal of this study was to determine if the latest commercial technologies or system were promising for imaging ground ice and associated features and to compare the results across a variety of permafrost terrains. Electrical Resistivity Tomography (ERT), in particular, has been effective for imaging ground ice. ERT measures the ability of materials to conduct or resist an electric current. A variation of this method, capacitive coupled resistivity (CCR) offers the ability for continuous data collection while moving across the landscape at scales of meters to kilometers. This greatly enhances the cost efficiency, applicability, and overall usefulness of the techniques and provides the ability to view variations in permafrost ice content on these larger scales. The original document contains color images. Prepared in collaboration with the U.S. Army Engineer Research and Development Center (ERDC), Cold Regions Research and Engineering Laboratory (CRREL), Alaska Projects Office, Fort Wainwright, AK. |
author2 |
ENGINEER RESEARCH AND DEVELOPMENT CENTER HANOVER NH COLD REGIONS RESEARCH AND ENGINEERING LAB |
format |
Text |
author |
Bjella, Kevin Arcone, Steve Douglas, Thomas |
author_facet |
Bjella, Kevin Arcone, Steve Douglas, Thomas |
author_sort |
Bjella, Kevin |
title |
Imaging of Ground Ice with Surface-Based Geophysics |
title_short |
Imaging of Ground Ice with Surface-Based Geophysics |
title_full |
Imaging of Ground Ice with Surface-Based Geophysics |
title_fullStr |
Imaging of Ground Ice with Surface-Based Geophysics |
title_full_unstemmed |
Imaging of Ground Ice with Surface-Based Geophysics |
title_sort |
imaging of ground ice with surface-based geophysics |
publishDate |
2015 |
url |
http://www.dtic.mil/docs/citations/ADA621946 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA621946 |
genre |
Cold Regions Research and Engineering Laboratory Ice permafrost Alaska |
genre_facet |
Cold Regions Research and Engineering Laboratory Ice permafrost Alaska |
op_source |
DTIC |
op_relation |
http://www.dtic.mil/docs/citations/ADA621946 |
op_rights |
Approved for public release; distribution is unlimited. |
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1766391317137457152 |