Regional Assessment of Glacier Motion in Kluane National Park, Yukon Territory
This project presents regional velocity measurements for the eastern portion of the St. Elias Mountains, including the entire glaciated area of Kluane National Park, derived from speckle tracking of Radarsat-2 imagery acquired in winter 2011 and 2012. This technique uses a cross-correlation approach...
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Université d'Ottawa / University of Ottawa
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ftdatacite:10.20381/ruor-3385 2023-05-15T17:04:25+02:00 Regional Assessment of Glacier Motion in Kluane National Park, Yukon Territory Waechter, Alexandra 2013 https://dx.doi.org/10.20381/ruor-3385 http://www.ruor.uottawa.ca/handle/10393/30190 en eng Université d'Ottawa / University of Ottawa Yukon Territory Kaskawulsh Glacier Hubbard Glacier St. Elias Icefield speckle tracking glacier velocity Radarsat-2 Text Thesis article-journal ScholarlyArticle 2013 ftdatacite https://doi.org/10.20381/ruor-3385 2021-11-05T12:55:41Z This project presents regional velocity measurements for the eastern portion of the St. Elias Mountains, including the entire glaciated area of Kluane National Park, derived from speckle tracking of Radarsat-2 imagery acquired in winter 2011 and 2012. This technique uses a cross-correlation approach to determine the displacement of the ‘speckle’ pattern of radar phase returns between two repeat-pass images. Further reconstruction of past velocities is performed on a selection of key glaciers using feature tracking of Landsat-5 imagery, allowing for the investigation of variability in glacier motion on interannual and decadal time scales. The results of the analysis showed that there is a strong velocity gradient across the region reflecting high accumulation rates on the Pacific-facing slope of the mountain range. These glaciers may have velocities an order of magnitude greater than glaciers of a similar size on the landward slope. Interannual variability was high, both in relation to surge events, of which a number were identified, and variation of other unknown controls on glacier motion. A long-term trend of velocity decrease was observed on the Kaskawulsh Glacier when comparing the results of this analysis to work carried out in the 1960s, the pattern of which is broadly congruent to measurements of surface elevation change over a similar period. Thesis Kluane National Park Yukon DataCite Metadata Store (German National Library of Science and Technology) Hubbard Glacier ENVELOPE(-139.379,-139.379,60.344,60.344) Kaskawulsh Glacier ENVELOPE(-139.104,-139.104,60.749,60.749) Pacific Yukon |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Yukon Territory Kaskawulsh Glacier Hubbard Glacier St. Elias Icefield speckle tracking glacier velocity Radarsat-2 |
spellingShingle |
Yukon Territory Kaskawulsh Glacier Hubbard Glacier St. Elias Icefield speckle tracking glacier velocity Radarsat-2 Waechter, Alexandra Regional Assessment of Glacier Motion in Kluane National Park, Yukon Territory |
topic_facet |
Yukon Territory Kaskawulsh Glacier Hubbard Glacier St. Elias Icefield speckle tracking glacier velocity Radarsat-2 |
description |
This project presents regional velocity measurements for the eastern portion of the St. Elias Mountains, including the entire glaciated area of Kluane National Park, derived from speckle tracking of Radarsat-2 imagery acquired in winter 2011 and 2012. This technique uses a cross-correlation approach to determine the displacement of the ‘speckle’ pattern of radar phase returns between two repeat-pass images. Further reconstruction of past velocities is performed on a selection of key glaciers using feature tracking of Landsat-5 imagery, allowing for the investigation of variability in glacier motion on interannual and decadal time scales. The results of the analysis showed that there is a strong velocity gradient across the region reflecting high accumulation rates on the Pacific-facing slope of the mountain range. These glaciers may have velocities an order of magnitude greater than glaciers of a similar size on the landward slope. Interannual variability was high, both in relation to surge events, of which a number were identified, and variation of other unknown controls on glacier motion. A long-term trend of velocity decrease was observed on the Kaskawulsh Glacier when comparing the results of this analysis to work carried out in the 1960s, the pattern of which is broadly congruent to measurements of surface elevation change over a similar period. |
format |
Thesis |
author |
Waechter, Alexandra |
author_facet |
Waechter, Alexandra |
author_sort |
Waechter, Alexandra |
title |
Regional Assessment of Glacier Motion in Kluane National Park, Yukon Territory |
title_short |
Regional Assessment of Glacier Motion in Kluane National Park, Yukon Territory |
title_full |
Regional Assessment of Glacier Motion in Kluane National Park, Yukon Territory |
title_fullStr |
Regional Assessment of Glacier Motion in Kluane National Park, Yukon Territory |
title_full_unstemmed |
Regional Assessment of Glacier Motion in Kluane National Park, Yukon Territory |
title_sort |
regional assessment of glacier motion in kluane national park, yukon territory |
publisher |
Université d'Ottawa / University of Ottawa |
publishDate |
2013 |
url |
https://dx.doi.org/10.20381/ruor-3385 http://www.ruor.uottawa.ca/handle/10393/30190 |
long_lat |
ENVELOPE(-139.379,-139.379,60.344,60.344) ENVELOPE(-139.104,-139.104,60.749,60.749) |
geographic |
Hubbard Glacier Kaskawulsh Glacier Pacific Yukon |
geographic_facet |
Hubbard Glacier Kaskawulsh Glacier Pacific Yukon |
genre |
Kluane National Park Yukon |
genre_facet |
Kluane National Park Yukon |
op_doi |
https://doi.org/10.20381/ruor-3385 |
_version_ |
1766058508200968192 |