Thermal Regime of Two Talus Slopes in Northwestern Ontario
This thesis investigates the thermal regimes of two talus slopes near lakes Superior and Nipigon, Ontario. Mean annual air temperatures in the region are periglacial, but little work has been done on whether permafrost or anomalously cold ground exist in blocky materials in the area. Air and interna...
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ftcarletonuniv:oai:curve.carleton.ca:32890 2023-05-15T16:37:24+02:00 Thermal Regime of Two Talus Slopes in Northwestern Ontario Bishop-Legowski, Saille Rae Simone 2019 https://curve.carleton.ca/11b41e9d-37af-4956-85d3-ba48247c7be1 https://doi.org/10.22215/etd/2019-13445 http://catalogue.library.carleton.ca/record=b4552671 unknown https://curve.carleton.ca/11b41e9d-37af-4956-85d3-ba48247c7be1 https://doi.org/10.22215/etd/2019-13445 http://catalogue.library.carleton.ca/record=b4552671 Thesis/Dissertation 2019 ftcarletonuniv https://doi.org/10.22215/etd/2019-13445 2022-01-23T08:09:26Z This thesis investigates the thermal regimes of two talus slopes near lakes Superior and Nipigon, Ontario. Mean annual air temperatures in the region are periglacial, but little work has been done on whether permafrost or anomalously cold ground exist in blocky materials in the area. Air and internal talus temperatures were recorded, and the dimensions of the rocks and the temperature at the base of the snow were measured. Internal talus temperatures increased with elevation. The talus slopes at both Doghead Mountain and Ouimet Canyon experienced an unstable thermal regime with significant convection during the winter, and a stable, stratified thermal regime with significant conduction during the summer. The summertime thermal regimes of the lower sections of the slopes were dominated by zero curtains. Thaw completion depended on the length of the zero curtain, and thus on the amount of ice in the talus. Permafrost was found in Ouimet Canyon. Thesis Ice permafrost CURVE - Carleton University Research Virtual Environment |
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Open Polar |
collection |
CURVE - Carleton University Research Virtual Environment |
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ftcarletonuniv |
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unknown |
description |
This thesis investigates the thermal regimes of two talus slopes near lakes Superior and Nipigon, Ontario. Mean annual air temperatures in the region are periglacial, but little work has been done on whether permafrost or anomalously cold ground exist in blocky materials in the area. Air and internal talus temperatures were recorded, and the dimensions of the rocks and the temperature at the base of the snow were measured. Internal talus temperatures increased with elevation. The talus slopes at both Doghead Mountain and Ouimet Canyon experienced an unstable thermal regime with significant convection during the winter, and a stable, stratified thermal regime with significant conduction during the summer. The summertime thermal regimes of the lower sections of the slopes were dominated by zero curtains. Thaw completion depended on the length of the zero curtain, and thus on the amount of ice in the talus. Permafrost was found in Ouimet Canyon. |
format |
Thesis |
author |
Bishop-Legowski, Saille Rae Simone |
spellingShingle |
Bishop-Legowski, Saille Rae Simone Thermal Regime of Two Talus Slopes in Northwestern Ontario |
author_facet |
Bishop-Legowski, Saille Rae Simone |
author_sort |
Bishop-Legowski, Saille Rae Simone |
title |
Thermal Regime of Two Talus Slopes in Northwestern Ontario |
title_short |
Thermal Regime of Two Talus Slopes in Northwestern Ontario |
title_full |
Thermal Regime of Two Talus Slopes in Northwestern Ontario |
title_fullStr |
Thermal Regime of Two Talus Slopes in Northwestern Ontario |
title_full_unstemmed |
Thermal Regime of Two Talus Slopes in Northwestern Ontario |
title_sort |
thermal regime of two talus slopes in northwestern ontario |
publishDate |
2019 |
url |
https://curve.carleton.ca/11b41e9d-37af-4956-85d3-ba48247c7be1 https://doi.org/10.22215/etd/2019-13445 http://catalogue.library.carleton.ca/record=b4552671 |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_relation |
https://curve.carleton.ca/11b41e9d-37af-4956-85d3-ba48247c7be1 https://doi.org/10.22215/etd/2019-13445 http://catalogue.library.carleton.ca/record=b4552671 |
op_doi |
https://doi.org/10.22215/etd/2019-13445 |
_version_ |
1766027688179400704 |