THE CHARACTERIZATION OF GROUND ICE DEPOSITS USING GROUND-PENETRATING RADAR TECHNIQUES
This study explores the capabilities of ground-penetrating radar (GPR) in the task of characterizing ground ice and the role this instrument can play in understanding the geomorphology of the cryosphere. The first article investigates the dielectric permittivity of ground ice using on-ice common-mid...
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ftunivwestonta:oai:ir.lib.uwo.ca:digitizedtheses-7373 2023-10-01T03:58:26+02:00 THE CHARACTERIZATION OF GROUND ICE DEPOSITS USING GROUND-PENETRATING RADAR TECHNIQUES Thomson, Laura I. 2011-01-01T08:00:00Z application/pdf https://ir.lib.uwo.ca/digitizedtheses/3555 https://ir.lib.uwo.ca/context/digitizedtheses/article/7373/viewcontent/2022_01_10_Radar_Investigations_of_Ground_Ice_Dielectrics_OCR__2_.pdf unknown Scholarship@Western https://ir.lib.uwo.ca/digitizedtheses/3555 https://ir.lib.uwo.ca/context/digitizedtheses/article/7373/viewcontent/2022_01_10_Radar_Investigations_of_Ground_Ice_Dielectrics_OCR__2_.pdf Digitized Theses ground-penetrating radar ground ice periglacial geomorphology Mars geomorphology analogue studies text 2011 ftunivwestonta 2023-09-03T07:40:28Z This study explores the capabilities of ground-penetrating radar (GPR) in the task of characterizing ground ice and the role this instrument can play in understanding the geomorphology of the cryosphere. The first article investigates the dielectric permittivity of ground ice using on-ice common-midpoint (CMP) GPR surveys conducted over massive stratified segregation ice, non-stratified segregation ice, and polygon ice wedges located on Ellesmere and Devon Islands, Nunavut. In comparison with ice cores, it was found that the dielectric permittivity of ground ice is most influenced by the volumetric ice content. This relationship appears to follow a modified complex refractive index (CRIM) dielectric mixing model. The second study applies the Brewster angle of incidence method to determine the dielectric permittivity of ground ice using endfire CMP surveys conducted atop the active layer. This method was able to predict dielectric permittivities within one dielectric unit of those established in the first article. Text Nunavut The University of Western Ontario: Scholarship@Western Brewster ENVELOPE(169.383,169.383,-72.950,-72.950) Nunavut |
institution |
Open Polar |
collection |
The University of Western Ontario: Scholarship@Western |
op_collection_id |
ftunivwestonta |
language |
unknown |
topic |
ground-penetrating radar ground ice periglacial geomorphology Mars geomorphology analogue studies |
spellingShingle |
ground-penetrating radar ground ice periglacial geomorphology Mars geomorphology analogue studies Thomson, Laura I. THE CHARACTERIZATION OF GROUND ICE DEPOSITS USING GROUND-PENETRATING RADAR TECHNIQUES |
topic_facet |
ground-penetrating radar ground ice periglacial geomorphology Mars geomorphology analogue studies |
description |
This study explores the capabilities of ground-penetrating radar (GPR) in the task of characterizing ground ice and the role this instrument can play in understanding the geomorphology of the cryosphere. The first article investigates the dielectric permittivity of ground ice using on-ice common-midpoint (CMP) GPR surveys conducted over massive stratified segregation ice, non-stratified segregation ice, and polygon ice wedges located on Ellesmere and Devon Islands, Nunavut. In comparison with ice cores, it was found that the dielectric permittivity of ground ice is most influenced by the volumetric ice content. This relationship appears to follow a modified complex refractive index (CRIM) dielectric mixing model. The second study applies the Brewster angle of incidence method to determine the dielectric permittivity of ground ice using endfire CMP surveys conducted atop the active layer. This method was able to predict dielectric permittivities within one dielectric unit of those established in the first article. |
format |
Text |
author |
Thomson, Laura I. |
author_facet |
Thomson, Laura I. |
author_sort |
Thomson, Laura I. |
title |
THE CHARACTERIZATION OF GROUND ICE DEPOSITS USING GROUND-PENETRATING RADAR TECHNIQUES |
title_short |
THE CHARACTERIZATION OF GROUND ICE DEPOSITS USING GROUND-PENETRATING RADAR TECHNIQUES |
title_full |
THE CHARACTERIZATION OF GROUND ICE DEPOSITS USING GROUND-PENETRATING RADAR TECHNIQUES |
title_fullStr |
THE CHARACTERIZATION OF GROUND ICE DEPOSITS USING GROUND-PENETRATING RADAR TECHNIQUES |
title_full_unstemmed |
THE CHARACTERIZATION OF GROUND ICE DEPOSITS USING GROUND-PENETRATING RADAR TECHNIQUES |
title_sort |
characterization of ground ice deposits using ground-penetrating radar techniques |
publisher |
Scholarship@Western |
publishDate |
2011 |
url |
https://ir.lib.uwo.ca/digitizedtheses/3555 https://ir.lib.uwo.ca/context/digitizedtheses/article/7373/viewcontent/2022_01_10_Radar_Investigations_of_Ground_Ice_Dielectrics_OCR__2_.pdf |
long_lat |
ENVELOPE(169.383,169.383,-72.950,-72.950) |
geographic |
Brewster Nunavut |
geographic_facet |
Brewster Nunavut |
genre |
Nunavut |
genre_facet |
Nunavut |
op_source |
Digitized Theses |
op_relation |
https://ir.lib.uwo.ca/digitizedtheses/3555 https://ir.lib.uwo.ca/context/digitizedtheses/article/7373/viewcontent/2022_01_10_Radar_Investigations_of_Ground_Ice_Dielectrics_OCR__2_.pdf |
_version_ |
1778531181931790336 |