Characteristics of an Icing-Dammed Proglacial Lake
Icing-dammed proglacial lakes form as a result of water-flow pathway restrictions caused by freezing of winter baseflow. With the majority of glaciers in the eastern Canadian High Arctic that previously terminated at sea level now terminating on land (Vaughan et al., 2013), emerging proglacial envir...
Main Author: | |
---|---|
Other Authors: | , , |
Format: | Master Thesis |
Language: | English |
Published: |
Graduate Studies
2017
|
Subjects: | |
Online Access: | http://hdl.handle.net/11023/4211 https://doi.org/10.11575/PRISM/25255 |
id |
ftunivcalgary:oai:prism.ucalgary.ca:11023/4211 |
---|---|
record_format |
openpolar |
spelling |
ftunivcalgary:oai:prism.ucalgary.ca:11023/4211 2023-08-27T04:07:38+02:00 Characteristics of an Icing-Dammed Proglacial Lake Blade, Michelle Moorman, Brian Beauchamp, Benoit Sjogren, Darren 2017 application/pdf http://hdl.handle.net/11023/4211 https://doi.org/10.11575/PRISM/25255 eng eng Graduate Studies University of Calgary Calgary Blade, M. (2017). Characteristics of an Icing-Dammed Proglacial Lake (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/25255 http://dx.doi.org/10.11575/PRISM/25255 http://hdl.handle.net/11023/4211 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 icing dam lake proglacial spring Arctic emerging polythermal master thesis 2017 ftunivcalgary https://doi.org/10.11575/PRISM/25255 2023-08-06T06:36:09Z Icing-dammed proglacial lakes form as a result of water-flow pathway restrictions caused by freezing of winter baseflow. With the majority of glaciers in the eastern Canadian High Arctic that previously terminated at sea level now terminating on land (Vaughan et al., 2013), emerging proglacial environments are becoming more common - resulting in the occurrence of novel terrestrial proglacial water flow regimes. This research addressed the knowledge gap of how a glacier, proglacial environment, and hydrological cycle contribute to delayed water-flow, in the form of a proglacial icing-dammed lake, in the terrestrial proglacial environment. The research was conducted at a unique location on Bylot Island, NU, in the eastern Canadian High Arctic, where icing-dammed proglacial lakes have been observed to form multiple years prior. In the proglacial environment, icing development has been studied as proxies to infer winter baseflow from upvalley glacial hydrological networks (Hodgkins et al., 2004; Wainstein, 2011). In addition, icing ablation has been studied as it reallocates a portion of winter streamflow to summer streamflow via icing melt (Reedyk et al., 1995). But icing-dammed lake formation in the proglacial environment remains relatively unexplored due to the uniqueness of their formation. Direct observations, time-lapse photography, lake water level and temperature monitoring, lake bathymetric mapping, and meteorological, electrical conductivity, turbidity, and dye tracing measurements were used to examine the characteristics of an icing-dammed proglacial lake to infer the processes involved for its formation and preservation into the July 2014 summer melt season. Results suggest that the icing-dammed proglacial lake formation is dependent on: the previous year’s icing state at the end of the melt season; the current icing forming a seal with the surrounding topography to restrict water flow and raise local base water level; and the current year’s melt season flow regime not exceptionally exceeding the current ... Master Thesis Arctic Bylot Island PRISM - University of Calgary Digital Repository Arctic Bylot Island Dam Lake ENVELOPE(-109.001,-109.001,59.617,59.617) Dammed Lake ENVELOPE(-68.258,-68.258,68.496,68.496) |
institution |
Open Polar |
collection |
PRISM - University of Calgary Digital Repository |
op_collection_id |
ftunivcalgary |
language |
English |
topic |
Physical Geography icing dam lake proglacial spring Arctic emerging polythermal |
spellingShingle |
Physical Geography icing dam lake proglacial spring Arctic emerging polythermal Blade, Michelle Characteristics of an Icing-Dammed Proglacial Lake |
topic_facet |
Physical Geography icing dam lake proglacial spring Arctic emerging polythermal |
description |
Icing-dammed proglacial lakes form as a result of water-flow pathway restrictions caused by freezing of winter baseflow. With the majority of glaciers in the eastern Canadian High Arctic that previously terminated at sea level now terminating on land (Vaughan et al., 2013), emerging proglacial environments are becoming more common - resulting in the occurrence of novel terrestrial proglacial water flow regimes. This research addressed the knowledge gap of how a glacier, proglacial environment, and hydrological cycle contribute to delayed water-flow, in the form of a proglacial icing-dammed lake, in the terrestrial proglacial environment. The research was conducted at a unique location on Bylot Island, NU, in the eastern Canadian High Arctic, where icing-dammed proglacial lakes have been observed to form multiple years prior. In the proglacial environment, icing development has been studied as proxies to infer winter baseflow from upvalley glacial hydrological networks (Hodgkins et al., 2004; Wainstein, 2011). In addition, icing ablation has been studied as it reallocates a portion of winter streamflow to summer streamflow via icing melt (Reedyk et al., 1995). But icing-dammed lake formation in the proglacial environment remains relatively unexplored due to the uniqueness of their formation. Direct observations, time-lapse photography, lake water level and temperature monitoring, lake bathymetric mapping, and meteorological, electrical conductivity, turbidity, and dye tracing measurements were used to examine the characteristics of an icing-dammed proglacial lake to infer the processes involved for its formation and preservation into the July 2014 summer melt season. Results suggest that the icing-dammed proglacial lake formation is dependent on: the previous year’s icing state at the end of the melt season; the current icing forming a seal with the surrounding topography to restrict water flow and raise local base water level; and the current year’s melt season flow regime not exceptionally exceeding the current ... |
author2 |
Moorman, Brian Beauchamp, Benoit Sjogren, Darren |
format |
Master Thesis |
author |
Blade, Michelle |
author_facet |
Blade, Michelle |
author_sort |
Blade, Michelle |
title |
Characteristics of an Icing-Dammed Proglacial Lake |
title_short |
Characteristics of an Icing-Dammed Proglacial Lake |
title_full |
Characteristics of an Icing-Dammed Proglacial Lake |
title_fullStr |
Characteristics of an Icing-Dammed Proglacial Lake |
title_full_unstemmed |
Characteristics of an Icing-Dammed Proglacial Lake |
title_sort |
characteristics of an icing-dammed proglacial lake |
publisher |
Graduate Studies |
publishDate |
2017 |
url |
http://hdl.handle.net/11023/4211 https://doi.org/10.11575/PRISM/25255 |
long_lat |
ENVELOPE(-109.001,-109.001,59.617,59.617) ENVELOPE(-68.258,-68.258,68.496,68.496) |
geographic |
Arctic Bylot Island Dam Lake Dammed Lake |
geographic_facet |
Arctic Bylot Island Dam Lake Dammed Lake |
genre |
Arctic Bylot Island |
genre_facet |
Arctic Bylot Island |
op_relation |
Blade, M. (2017). Characteristics of an Icing-Dammed Proglacial Lake (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/25255 http://dx.doi.org/10.11575/PRISM/25255 http://hdl.handle.net/11023/4211 |
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/25255 |
_version_ |
1775348384858636288 |