Laboratory Measurements of Soil Electric Properties between 0.1 and 5 GHz
Dielectric measurements have been performed on silt and sand samples from permafrost areas using Time Domain Reflectometry. The sample temperatures were varied from +25 C to -25 C, and volumetric water content was varied between oven-dry and 0.55 gH2O/cc. The data were processed for frequencies betw...
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ftdtic:ADA115126 2023-05-15T16:37:16+02:00 Laboratory Measurements of Soil Electric Properties between 0.1 and 5 GHz Delaney,Allan J Arcone,Steven A COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH 1982-04 text/html http://www.dtic.mil/docs/citations/ADA115126 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA115126 en eng http://www.dtic.mil/docs/citations/ADA115126 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Soil Mechanics Electricity and Magnetism *Soils Alaska Permafrost Silt Sand Dielectric properties Measurement Electromagnetic wave reflections Very high frequency Ultrahigh frequency Superhigh frequency Time domain Temperature Moisture content Dielectric permittivity Time domain reflectometry PE61102A AST24 Text 1982 ftdtic 2016-02-19T08:02:25Z Dielectric measurements have been performed on silt and sand samples from permafrost areas using Time Domain Reflectometry. The sample temperatures were varied from +25 C to -25 C, and volumetric water content was varied between oven-dry and 0.55 gH2O/cc. The data were processed for frequencies between 0.1 and 5.0 GHz. The results show a constant K' and a low K' for frequencies up to 1 GHz. A frequency dependence seen on the data above 2 GHz is probably the result of unfrozen, adsorbed water. At moisture levels near saturation at all temperatures, these soils have excellent propagation characteristics for ground-probing radar operating below 0.3 GHz. Massive ice should be easily detectable in permafrost within a few degrees of 0 C. (Author) Text 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 |
language |
English |
topic |
Soil Mechanics Electricity and Magnetism *Soils Alaska Permafrost Silt Sand Dielectric properties Measurement Electromagnetic wave reflections Very high frequency Ultrahigh frequency Superhigh frequency Time domain Temperature Moisture content Dielectric permittivity Time domain reflectometry PE61102A AST24 |
spellingShingle |
Soil Mechanics Electricity and Magnetism *Soils Alaska Permafrost Silt Sand Dielectric properties Measurement Electromagnetic wave reflections Very high frequency Ultrahigh frequency Superhigh frequency Time domain Temperature Moisture content Dielectric permittivity Time domain reflectometry PE61102A AST24 Delaney,Allan J Arcone,Steven A Laboratory Measurements of Soil Electric Properties between 0.1 and 5 GHz |
topic_facet |
Soil Mechanics Electricity and Magnetism *Soils Alaska Permafrost Silt Sand Dielectric properties Measurement Electromagnetic wave reflections Very high frequency Ultrahigh frequency Superhigh frequency Time domain Temperature Moisture content Dielectric permittivity Time domain reflectometry PE61102A AST24 |
description |
Dielectric measurements have been performed on silt and sand samples from permafrost areas using Time Domain Reflectometry. The sample temperatures were varied from +25 C to -25 C, and volumetric water content was varied between oven-dry and 0.55 gH2O/cc. The data were processed for frequencies between 0.1 and 5.0 GHz. The results show a constant K' and a low K' for frequencies up to 1 GHz. A frequency dependence seen on the data above 2 GHz is probably the result of unfrozen, adsorbed water. At moisture levels near saturation at all temperatures, these soils have excellent propagation characteristics for ground-probing radar operating below 0.3 GHz. Massive ice should be easily detectable in permafrost within a few degrees of 0 C. (Author) |
author2 |
COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH |
format |
Text |
author |
Delaney,Allan J Arcone,Steven A |
author_facet |
Delaney,Allan J Arcone,Steven A |
author_sort |
Delaney,Allan J |
title |
Laboratory Measurements of Soil Electric Properties between 0.1 and 5 GHz |
title_short |
Laboratory Measurements of Soil Electric Properties between 0.1 and 5 GHz |
title_full |
Laboratory Measurements of Soil Electric Properties between 0.1 and 5 GHz |
title_fullStr |
Laboratory Measurements of Soil Electric Properties between 0.1 and 5 GHz |
title_full_unstemmed |
Laboratory Measurements of Soil Electric Properties between 0.1 and 5 GHz |
title_sort |
laboratory measurements of soil electric properties between 0.1 and 5 ghz |
publishDate |
1982 |
url |
http://www.dtic.mil/docs/citations/ADA115126 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA115126 |
genre |
Ice permafrost Alaska |
genre_facet |
Ice permafrost Alaska |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA115126 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766027570385518592 |