Near-surface geophysical imaging of a thermokarst pond in the discontinuous permafrost zone in Nunavik (Québec), Canada
In this study, high resolution ground-penetrating radar (GPR), electrical resistivity tomography (ERT), and spectral-induced polarization tomography (SIPT) were used to (i) delineate characteristic solifluction features, (ii) map the ice distribution, and (iii) assess subsurface water content and pe...
Published in: | Permafrost and Periglacial Processes |
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Language: | English |
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Chichester, Angleterre : J. Wiley
2022
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Online Access: | https://hdl.handle.net/20.500.11794/105103 https://doi.org/10.1002/ppp.2166 |
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ftunivlavalcorp:oai:corpus.ulaval.ca:20.500.11794/105103 2024-06-23T07:53:39+00:00 Near-surface geophysical imaging of a thermokarst pond in the discontinuous permafrost zone in Nunavik (Québec), Canada Bussière, Léa Schmutz, Myriam Fortier, Richard Lemieux, Jean-Michel Dupuy, Alain Québec (Province) -- Nunavik 2022-12-02T13:50:30Z application/pdf https://hdl.handle.net/20.500.11794/105103 https://doi.org/10.1002/ppp.2166 eng eng Chichester, Angleterre : J. Wiley 1045-6740 http://hdl.handle.net/20.500.11794/105103 doi:10.1002/ppp.2166 http://purl.org/coar/access_right/c_16ec Degrading permafros Electrical resistivity tomography (ERT) Ground-penetrating radar (GPR) Internal structure Spectral-induced polarization tomography (SIPT) Permeability Thermokarst pond Water content Thermokarst Pergélisols Tomographie Radar pénétrant dans le sol article de recherche 2022 ftunivlavalcorp https://doi.org/20.500.11794/10510310.1002/ppp.2166 2024-06-03T23:43:59Z In this study, high resolution ground-penetrating radar (GPR), electrical resistivity tomography (ERT), and spectral-induced polarization tomography (SIPT) were used to (i) delineate characteristic solifluction features, (ii) map the ice distribution, and (iii) assess subsurface water content and permeability in the surrounding rampart of a thermokarst pond in the discontinuous permafrost zone. The study site is located in the Tasiapik Valley near Umiujaq in Nunavik (Québec), Canada, which benefits from decades of geological mapping, geophysical investigation, and monitoring of ground temperature and thaw subsidence, providing an extensive understanding of the cryohydrogeological context of the area. The results of geophysical investigation undertaken in this study were cross validated using core sampling, laboratory core analysis, and in situ ground temperature and water content monitoring. Based on this investigation, a conceptual model was derived and compared to the stratigraphy of crosssection described in literature in finer-grained context. Very good consistency was found from one in situ geophysical survey to another, as well as between the derived stratigraphic models and the ground truth. The combination of all the available data allowed the development of a detailed cryohydrogeological model across the studied thermokarst pond, which highlights the effect of lithology, topography, and land cover on the distribution and mobility of water in the ground. Other/Unknown Material Ice permafrost Thermokarst Umiujaq Nunavik Université Laval: CorpusUL Canada Nunavik Umiujaq ENVELOPE(-76.549,-76.549,56.553,56.553) Permafrost and Periglacial Processes 33 4 353 369 |
institution |
Open Polar |
collection |
Université Laval: CorpusUL |
op_collection_id |
ftunivlavalcorp |
language |
English |
topic |
Degrading permafros Electrical resistivity tomography (ERT) Ground-penetrating radar (GPR) Internal structure Spectral-induced polarization tomography (SIPT) Permeability Thermokarst pond Water content Thermokarst Pergélisols Tomographie Radar pénétrant dans le sol |
spellingShingle |
Degrading permafros Electrical resistivity tomography (ERT) Ground-penetrating radar (GPR) Internal structure Spectral-induced polarization tomography (SIPT) Permeability Thermokarst pond Water content Thermokarst Pergélisols Tomographie Radar pénétrant dans le sol Bussière, Léa Schmutz, Myriam Fortier, Richard Lemieux, Jean-Michel Dupuy, Alain Near-surface geophysical imaging of a thermokarst pond in the discontinuous permafrost zone in Nunavik (Québec), Canada |
topic_facet |
Degrading permafros Electrical resistivity tomography (ERT) Ground-penetrating radar (GPR) Internal structure Spectral-induced polarization tomography (SIPT) Permeability Thermokarst pond Water content Thermokarst Pergélisols Tomographie Radar pénétrant dans le sol |
description |
In this study, high resolution ground-penetrating radar (GPR), electrical resistivity tomography (ERT), and spectral-induced polarization tomography (SIPT) were used to (i) delineate characteristic solifluction features, (ii) map the ice distribution, and (iii) assess subsurface water content and permeability in the surrounding rampart of a thermokarst pond in the discontinuous permafrost zone. The study site is located in the Tasiapik Valley near Umiujaq in Nunavik (Québec), Canada, which benefits from decades of geological mapping, geophysical investigation, and monitoring of ground temperature and thaw subsidence, providing an extensive understanding of the cryohydrogeological context of the area. The results of geophysical investigation undertaken in this study were cross validated using core sampling, laboratory core analysis, and in situ ground temperature and water content monitoring. Based on this investigation, a conceptual model was derived and compared to the stratigraphy of crosssection described in literature in finer-grained context. Very good consistency was found from one in situ geophysical survey to another, as well as between the derived stratigraphic models and the ground truth. The combination of all the available data allowed the development of a detailed cryohydrogeological model across the studied thermokarst pond, which highlights the effect of lithology, topography, and land cover on the distribution and mobility of water in the ground. |
format |
Other/Unknown Material |
author |
Bussière, Léa Schmutz, Myriam Fortier, Richard Lemieux, Jean-Michel Dupuy, Alain |
author_facet |
Bussière, Léa Schmutz, Myriam Fortier, Richard Lemieux, Jean-Michel Dupuy, Alain |
author_sort |
Bussière, Léa |
title |
Near-surface geophysical imaging of a thermokarst pond in the discontinuous permafrost zone in Nunavik (Québec), Canada |
title_short |
Near-surface geophysical imaging of a thermokarst pond in the discontinuous permafrost zone in Nunavik (Québec), Canada |
title_full |
Near-surface geophysical imaging of a thermokarst pond in the discontinuous permafrost zone in Nunavik (Québec), Canada |
title_fullStr |
Near-surface geophysical imaging of a thermokarst pond in the discontinuous permafrost zone in Nunavik (Québec), Canada |
title_full_unstemmed |
Near-surface geophysical imaging of a thermokarst pond in the discontinuous permafrost zone in Nunavik (Québec), Canada |
title_sort |
near-surface geophysical imaging of a thermokarst pond in the discontinuous permafrost zone in nunavik (québec), canada |
publisher |
Chichester, Angleterre : J. Wiley |
publishDate |
2022 |
url |
https://hdl.handle.net/20.500.11794/105103 https://doi.org/10.1002/ppp.2166 |
op_coverage |
Québec (Province) -- Nunavik |
long_lat |
ENVELOPE(-76.549,-76.549,56.553,56.553) |
geographic |
Canada Nunavik Umiujaq |
geographic_facet |
Canada Nunavik Umiujaq |
genre |
Ice permafrost Thermokarst Umiujaq Nunavik |
genre_facet |
Ice permafrost Thermokarst Umiujaq Nunavik |
op_relation |
1045-6740 http://hdl.handle.net/20.500.11794/105103 doi:10.1002/ppp.2166 |
op_rights |
http://purl.org/coar/access_right/c_16ec |
op_doi |
https://doi.org/20.500.11794/10510310.1002/ppp.2166 |
container_title |
Permafrost and Periglacial Processes |
container_volume |
33 |
container_issue |
4 |
container_start_page |
353 |
op_container_end_page |
369 |
_version_ |
1802645417184198656 |