The Evolution of a Pulsating Supraglacial Stream
Supraglacial streams are a significant part of the glacial hydrological regime and important for understanding the dynamics between glacial hydrology, glacier dynamics, and climate change. During the 2014 ablation period on Bylot Island, Nunavut, a supraglacial stream, which flowed over a 13 m high...
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ftunivcalgary:oai:prism.ucalgary.ca:11023/2460 2023-08-27T04:07:52+02:00 The Evolution of a Pulsating Supraglacial Stream St. Germain, Sarah Moorman, Brian 2015 application/pdf http://hdl.handle.net/11023/2460 https://doi.org/10.11575/PRISM/28140 eng eng Graduate Studies University of Calgary Calgary St. Germain, S. (2015). The Evolution of a Pulsating Supraglacial Stream (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/28140 http://dx.doi.org/10.11575/PRISM/28140 http://hdl.handle.net/11023/2460 University of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission. Physical Geography Glaciology Hydrology Supraglacial Stream Canadian Arctic master thesis 2015 ftunivcalgary https://doi.org/10.11575/PRISM/28140 2023-08-06T06:23:44Z Supraglacial streams are a significant part of the glacial hydrological regime and important for understanding the dynamics between glacial hydrology, glacier dynamics, and climate change. During the 2014 ablation period on Bylot Island, Nunavut, a supraglacial stream, which flowed over a 13 m high waterfall at the front of Fountain Glacier, began to pulsate. The pulsating phenomenon involved the stoppage of flow over the waterfall for 10-15 s, with a total period of 27 s. The objective of this research was to determine the factors that influenced the evolution of the supraglacial stream. Results show a change in the weather, where multiple rainfall events occurred during the second week of the study. Analysis suggests that the rainfall caused the formation of a step-pool sequence within the streambed. In conclusion, the formation of the step-pool sequence and constructive interference from changes in flow conditions caused the distinctive pulsating. Master Thesis Arctic Bylot Island Climate change Nunavut PRISM - University of Calgary Digital Repository Arctic Bylot Island Fountain Glacier ENVELOPE(161.633,161.633,-77.683,-77.683) Nunavut |
institution |
Open Polar |
collection |
PRISM - University of Calgary Digital Repository |
op_collection_id |
ftunivcalgary |
language |
English |
topic |
Physical Geography Glaciology Hydrology Supraglacial Stream Canadian Arctic |
spellingShingle |
Physical Geography Glaciology Hydrology Supraglacial Stream Canadian Arctic St. Germain, Sarah The Evolution of a Pulsating Supraglacial Stream |
topic_facet |
Physical Geography Glaciology Hydrology Supraglacial Stream Canadian Arctic |
description |
Supraglacial streams are a significant part of the glacial hydrological regime and important for understanding the dynamics between glacial hydrology, glacier dynamics, and climate change. During the 2014 ablation period on Bylot Island, Nunavut, a supraglacial stream, which flowed over a 13 m high waterfall at the front of Fountain Glacier, began to pulsate. The pulsating phenomenon involved the stoppage of flow over the waterfall for 10-15 s, with a total period of 27 s. The objective of this research was to determine the factors that influenced the evolution of the supraglacial stream. Results show a change in the weather, where multiple rainfall events occurred during the second week of the study. Analysis suggests that the rainfall caused the formation of a step-pool sequence within the streambed. In conclusion, the formation of the step-pool sequence and constructive interference from changes in flow conditions caused the distinctive pulsating. |
author2 |
Moorman, Brian |
format |
Master Thesis |
author |
St. Germain, Sarah |
author_facet |
St. Germain, Sarah |
author_sort |
St. Germain, Sarah |
title |
The Evolution of a Pulsating Supraglacial Stream |
title_short |
The Evolution of a Pulsating Supraglacial Stream |
title_full |
The Evolution of a Pulsating Supraglacial Stream |
title_fullStr |
The Evolution of a Pulsating Supraglacial Stream |
title_full_unstemmed |
The Evolution of a Pulsating Supraglacial Stream |
title_sort |
evolution of a pulsating supraglacial stream |
publisher |
Graduate Studies |
publishDate |
2015 |
url |
http://hdl.handle.net/11023/2460 https://doi.org/10.11575/PRISM/28140 |
long_lat |
ENVELOPE(161.633,161.633,-77.683,-77.683) |
geographic |
Arctic Bylot Island Fountain Glacier Nunavut |
geographic_facet |
Arctic Bylot Island Fountain Glacier Nunavut |
genre |
Arctic Bylot Island Climate change Nunavut |
genre_facet |
Arctic Bylot Island Climate change Nunavut |
op_relation |
St. Germain, S. (2015). The Evolution of a Pulsating Supraglacial Stream (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/28140 http://dx.doi.org/10.11575/PRISM/28140 http://hdl.handle.net/11023/2460 |
op_rights |
University of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission. |
op_doi |
https://doi.org/10.11575/PRISM/28140 |
_version_ |
1775348592042573824 |