Mapping of permafrost surface and active layer properties using GPR: a comparison of frequency dependencies
Ground penetrating radar (GPR) was used to detect internal features and conditions in the active layer of Zackenberg valley in North-East Greenland. For about 16 years there has been a monitoring programme that registers the physical and biological processes in the ecosystem.We aim to improve the mo...
Published in: | 2011 6th International Workshop on Advanced Ground Penetrating Radar (IWAGPR) |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/c4ae5604-4e67-4f33-8901-c6ab115f729e 2024-04-21T08:01:16+00:00 Mapping of permafrost surface and active layer properties using GPR: a comparison of frequency dependencies Gacitua, Guisella Uribe, José Andrés Tamstorf, Mikkel Peter Kristiansen, Søren Munch 2011 https://pure.au.dk/portal/en/publications/c4ae5604-4e67-4f33-8901-c6ab115f729e https://doi.org/10.1109/IWAGPR.2011.5963837 eng eng https://pure.au.dk/portal/en/publications/c4ae5604-4e67-4f33-8901-c6ab115f729e urn:ISBN:978-1-4577-0332-4 info:eu-repo/semantics/restrictedAccess Gacitua , G , Uribe , J A , Tamstorf , M P & Kristiansen , S M 2011 , Mapping of permafrost surface and active layer properties using GPR: a comparison of frequency dependencies . in 6th International Workshop on Advanced Ground Penetrating Radar, IWAGPR 2011 . pp. art. no. 5963837 , 6th International Workshop on Advanced Ground Penetrating Radar (IWAGPR 2011) , Aachen , Germany , 22/06/2011 . https://doi.org/10.1109/IWAGPR.2011.5963837 contributionToPeriodical 2011 ftuniaarhuspubl https://doi.org/10.1109/IWAGPR.2011.5963837 2024-03-28T00:37:21Z Ground penetrating radar (GPR) was used to detect internal features and conditions in the active layer of Zackenberg valley in North-East Greenland. For about 16 years there has been a monitoring programme that registers the physical and biological processes in the ecosystem.We aim to improve the monitoring accuracy of the active layer development and estimated soil water content. We used two different GPR frequencies to study their performance in High-Arctic cryoturbated soils. Here we present the analysis of the signal received by quantifying the power of the signal that is reflected from the top of the permafrost and from the internal features in the unfrozen soil. These results will be further used to determine the distribution of dielectric heterogeneities to support water content estimated from the same profiles. Comparing results from 400 and 800 MHz, we found that although both frequencies are suitable to measure thickness and to detect features in the active layer, the 400 MHz gives a better impression of the influence of the dielectric contrast effect from top of the permafrost zone which can be used to quantify the soil water content. Article in Journal/Newspaper East Greenland Greenland permafrost Zackenberg Aarhus University: Research 2011 6th International Workshop on Advanced Ground Penetrating Radar (IWAGPR) 1 5 |
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Open Polar |
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Aarhus University: Research |
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ftuniaarhuspubl |
language |
English |
description |
Ground penetrating radar (GPR) was used to detect internal features and conditions in the active layer of Zackenberg valley in North-East Greenland. For about 16 years there has been a monitoring programme that registers the physical and biological processes in the ecosystem.We aim to improve the monitoring accuracy of the active layer development and estimated soil water content. We used two different GPR frequencies to study their performance in High-Arctic cryoturbated soils. Here we present the analysis of the signal received by quantifying the power of the signal that is reflected from the top of the permafrost and from the internal features in the unfrozen soil. These results will be further used to determine the distribution of dielectric heterogeneities to support water content estimated from the same profiles. Comparing results from 400 and 800 MHz, we found that although both frequencies are suitable to measure thickness and to detect features in the active layer, the 400 MHz gives a better impression of the influence of the dielectric contrast effect from top of the permafrost zone which can be used to quantify the soil water content. |
format |
Article in Journal/Newspaper |
author |
Gacitua, Guisella Uribe, José Andrés Tamstorf, Mikkel Peter Kristiansen, Søren Munch |
spellingShingle |
Gacitua, Guisella Uribe, José Andrés Tamstorf, Mikkel Peter Kristiansen, Søren Munch Mapping of permafrost surface and active layer properties using GPR: a comparison of frequency dependencies |
author_facet |
Gacitua, Guisella Uribe, José Andrés Tamstorf, Mikkel Peter Kristiansen, Søren Munch |
author_sort |
Gacitua, Guisella |
title |
Mapping of permafrost surface and active layer properties using GPR: a comparison of frequency dependencies |
title_short |
Mapping of permafrost surface and active layer properties using GPR: a comparison of frequency dependencies |
title_full |
Mapping of permafrost surface and active layer properties using GPR: a comparison of frequency dependencies |
title_fullStr |
Mapping of permafrost surface and active layer properties using GPR: a comparison of frequency dependencies |
title_full_unstemmed |
Mapping of permafrost surface and active layer properties using GPR: a comparison of frequency dependencies |
title_sort |
mapping of permafrost surface and active layer properties using gpr: a comparison of frequency dependencies |
publishDate |
2011 |
url |
https://pure.au.dk/portal/en/publications/c4ae5604-4e67-4f33-8901-c6ab115f729e https://doi.org/10.1109/IWAGPR.2011.5963837 |
genre |
East Greenland Greenland permafrost Zackenberg |
genre_facet |
East Greenland Greenland permafrost Zackenberg |
op_source |
Gacitua , G , Uribe , J A , Tamstorf , M P & Kristiansen , S M 2011 , Mapping of permafrost surface and active layer properties using GPR: a comparison of frequency dependencies . in 6th International Workshop on Advanced Ground Penetrating Radar, IWAGPR 2011 . pp. art. no. 5963837 , 6th International Workshop on Advanced Ground Penetrating Radar (IWAGPR 2011) , Aachen , Germany , 22/06/2011 . https://doi.org/10.1109/IWAGPR.2011.5963837 |
op_relation |
https://pure.au.dk/portal/en/publications/c4ae5604-4e67-4f33-8901-c6ab115f729e urn:ISBN:978-1-4577-0332-4 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1109/IWAGPR.2011.5963837 |
container_title |
2011 6th International Workshop on Advanced Ground Penetrating Radar (IWAGPR) |
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