Permafrost Patch Size Near the Margins of Discontinuous Permafrost, Southern Yukon and Northern B.C.
This research focused on measuring permafrost patch size and related variables between Fort St. John, BC and Whitehorse, YT. Methods used included electrical resistivity tomography, climate monitoring, active layer measurement, analysis of historical aerial photos, and on-site near-vertical aerial i...
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Université d'Ottawa / University of Ottawa
2016
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ftunivottawa:oai:ruor.uottawa.ca:10393/34969 2023-05-15T17:55:16+02:00 Permafrost Patch Size Near the Margins of Discontinuous Permafrost, Southern Yukon and Northern B.C. Bellehumeur-Genier, Olivier Lewkowicz, Antoni 2016 application/pdf http://hdl.handle.net/10393/34969 https://doi.org/10.20381/ruor-4964 en eng Université d'Ottawa / University of Ottawa http://hdl.handle.net/10393/34969 http://dx.doi.org/10.20381/ruor-4964 Permafrost Canada Thesis 2016 ftunivottawa https://doi.org/10.20381/ruor-4964 2021-01-04T18:26:27Z This research focused on measuring permafrost patch size and related variables between Fort St. John, BC and Whitehorse, YT. Methods used included electrical resistivity tomography, climate monitoring, active layer measurement, analysis of historical aerial photos, and on-site near-vertical aerial imaging. Where permafrost is present along the transect, mean annual air temperature (2010-2014) varied from -3.3 ºC to -0.9 ºC, mean annual ground surface temperature from 0.7 ºC to 2.4 ºC and mean annual ground temperature from -0.3 ºC to 0.2 ºC (at TTOP). Permafrost patches are in the order of 10 – 50 000 m2 in area and there is a strong positive log-log relationship between patch area and maximum permafrost thickness. A conceptual model of permafrost patch size evolution under a warming climate is proposed. It is concluded that permafrost patch size depends on site-specific characteristics, the time since permafrost began to degrade and the local climate conditions. Thesis permafrost Whitehorse Yukon uO Research (University of Ottawa - uOttawa) Canada Fort St. John ENVELOPE(-120.837,-120.837,56.244,56.244) Yukon |
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Open Polar |
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uO Research (University of Ottawa - uOttawa) |
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ftunivottawa |
language |
English |
topic |
Permafrost Canada |
spellingShingle |
Permafrost Canada Bellehumeur-Genier, Olivier Permafrost Patch Size Near the Margins of Discontinuous Permafrost, Southern Yukon and Northern B.C. |
topic_facet |
Permafrost Canada |
description |
This research focused on measuring permafrost patch size and related variables between Fort St. John, BC and Whitehorse, YT. Methods used included electrical resistivity tomography, climate monitoring, active layer measurement, analysis of historical aerial photos, and on-site near-vertical aerial imaging. Where permafrost is present along the transect, mean annual air temperature (2010-2014) varied from -3.3 ºC to -0.9 ºC, mean annual ground surface temperature from 0.7 ºC to 2.4 ºC and mean annual ground temperature from -0.3 ºC to 0.2 ºC (at TTOP). Permafrost patches are in the order of 10 – 50 000 m2 in area and there is a strong positive log-log relationship between patch area and maximum permafrost thickness. A conceptual model of permafrost patch size evolution under a warming climate is proposed. It is concluded that permafrost patch size depends on site-specific characteristics, the time since permafrost began to degrade and the local climate conditions. |
author2 |
Lewkowicz, Antoni |
format |
Thesis |
author |
Bellehumeur-Genier, Olivier |
author_facet |
Bellehumeur-Genier, Olivier |
author_sort |
Bellehumeur-Genier, Olivier |
title |
Permafrost Patch Size Near the Margins of Discontinuous Permafrost, Southern Yukon and Northern B.C. |
title_short |
Permafrost Patch Size Near the Margins of Discontinuous Permafrost, Southern Yukon and Northern B.C. |
title_full |
Permafrost Patch Size Near the Margins of Discontinuous Permafrost, Southern Yukon and Northern B.C. |
title_fullStr |
Permafrost Patch Size Near the Margins of Discontinuous Permafrost, Southern Yukon and Northern B.C. |
title_full_unstemmed |
Permafrost Patch Size Near the Margins of Discontinuous Permafrost, Southern Yukon and Northern B.C. |
title_sort |
permafrost patch size near the margins of discontinuous permafrost, southern yukon and northern b.c. |
publisher |
Université d'Ottawa / University of Ottawa |
publishDate |
2016 |
url |
http://hdl.handle.net/10393/34969 https://doi.org/10.20381/ruor-4964 |
long_lat |
ENVELOPE(-120.837,-120.837,56.244,56.244) |
geographic |
Canada Fort St. John Yukon |
geographic_facet |
Canada Fort St. John Yukon |
genre |
permafrost Whitehorse Yukon |
genre_facet |
permafrost Whitehorse Yukon |
op_relation |
http://hdl.handle.net/10393/34969 http://dx.doi.org/10.20381/ruor-4964 |
op_doi |
https://doi.org/10.20381/ruor-4964 |
_version_ |
1766163178325016576 |