Climate and surging of Donjek Glacier, Yukon, Canada
Links between climate and glacier surges are poorly understood but are required to enable prediction of surges and mitigation of associated hazards. Here, we investigate the role of snow accumulation, rain, and temperature on surge periodicity, area changes, and timing of surge initiation since the...
Published in: | Arctic, Antarctic, and Alpine Research |
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Language: | English |
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Taylor & Francis Group
2020
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Online Access: | https://doi.org/10.1080/15230430.2020.1744397 https://doaj.org/article/a403b65f0305442aa2bcd3c6cd161f5b |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:a403b65f0305442aa2bcd3c6cd161f5b 2023-05-15T14:14:22+02:00 Climate and surging of Donjek Glacier, Yukon, Canada William Kochtitzky Dominic Winski Erin McConnell Karl Kreutz Seth Campbell Ellyn M. Enderlin Luke Copland Scott Williamson Brittany Main Hester Jiskoot 2020-01-01 https://doi.org/10.1080/15230430.2020.1744397 https://doaj.org/article/a403b65f0305442aa2bcd3c6cd161f5b en eng Taylor & Francis Group 1523-0430 1938-4246 doi:10.1080/15230430.2020.1744397 https://doaj.org/article/a403b65f0305442aa2bcd3c6cd161f5b undefined Arctic, Antarctic, and Alpine Research, Vol 52, Iss 1, Pp 264-280 (2020) glacier surge climate ice cores donjek glacier yukon geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2020 fttriple https://doi.org/10.1080/15230430.2020.1744397 2023-01-22T19:15:34Z Links between climate and glacier surges are poorly understood but are required to enable prediction of surges and mitigation of associated hazards. Here, we investigate the role of snow accumulation, rain, and temperature on surge periodicity, area changes, and timing of surge initiation since the 1930s at Donjek Glacier, Yukon, Canada. Snow accumulation measured in three ice cores collected at Eclipse Icefield indicates that a cumulative accumulation of 15.5 ± 1.46 or 16.6 ± 2.0 m w.e. occurred in the ten to twelve years between each of its last eight surges, depending on ice motion spatiotemporal offset corrections. Although we find consistent snow accumulation between surges, the transient snow line has risen 10.3 m decade−1 vertically since the 1950s, and Burwash Landing weather station records indicate a 0.5°C decade−1 increase in mean annual air temperature since the 1960s. Changes in surface mass balance are accompanied by a consistent surge interval but decreasing surge extent. The three recent surge events initiated in years with the rainiest summers on record. These findings highlight a complex interplay between external (i.e., climate) and internal glacier processes that control surging at Donjek Glacier, with climate having a more direct influence on surge extent than on recurrence interval. Article in Journal/Newspaper Antarctic and Alpine Research Arctic glacier* Yukon Unknown Burwash Landing ENVELOPE(-138.996,-138.996,61.355,61.355) Canada Donjek Glacier ENVELOPE(-139.718,-139.718,61.059,61.059) Yukon Arctic, Antarctic, and Alpine Research 52 1 264 280 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
glacier surge climate ice cores donjek glacier yukon geo envir |
spellingShingle |
glacier surge climate ice cores donjek glacier yukon geo envir William Kochtitzky Dominic Winski Erin McConnell Karl Kreutz Seth Campbell Ellyn M. Enderlin Luke Copland Scott Williamson Brittany Main Hester Jiskoot Climate and surging of Donjek Glacier, Yukon, Canada |
topic_facet |
glacier surge climate ice cores donjek glacier yukon geo envir |
description |
Links between climate and glacier surges are poorly understood but are required to enable prediction of surges and mitigation of associated hazards. Here, we investigate the role of snow accumulation, rain, and temperature on surge periodicity, area changes, and timing of surge initiation since the 1930s at Donjek Glacier, Yukon, Canada. Snow accumulation measured in three ice cores collected at Eclipse Icefield indicates that a cumulative accumulation of 15.5 ± 1.46 or 16.6 ± 2.0 m w.e. occurred in the ten to twelve years between each of its last eight surges, depending on ice motion spatiotemporal offset corrections. Although we find consistent snow accumulation between surges, the transient snow line has risen 10.3 m decade−1 vertically since the 1950s, and Burwash Landing weather station records indicate a 0.5°C decade−1 increase in mean annual air temperature since the 1960s. Changes in surface mass balance are accompanied by a consistent surge interval but decreasing surge extent. The three recent surge events initiated in years with the rainiest summers on record. These findings highlight a complex interplay between external (i.e., climate) and internal glacier processes that control surging at Donjek Glacier, with climate having a more direct influence on surge extent than on recurrence interval. |
format |
Article in Journal/Newspaper |
author |
William Kochtitzky Dominic Winski Erin McConnell Karl Kreutz Seth Campbell Ellyn M. Enderlin Luke Copland Scott Williamson Brittany Main Hester Jiskoot |
author_facet |
William Kochtitzky Dominic Winski Erin McConnell Karl Kreutz Seth Campbell Ellyn M. Enderlin Luke Copland Scott Williamson Brittany Main Hester Jiskoot |
author_sort |
William Kochtitzky |
title |
Climate and surging of Donjek Glacier, Yukon, Canada |
title_short |
Climate and surging of Donjek Glacier, Yukon, Canada |
title_full |
Climate and surging of Donjek Glacier, Yukon, Canada |
title_fullStr |
Climate and surging of Donjek Glacier, Yukon, Canada |
title_full_unstemmed |
Climate and surging of Donjek Glacier, Yukon, Canada |
title_sort |
climate and surging of donjek glacier, yukon, canada |
publisher |
Taylor & Francis Group |
publishDate |
2020 |
url |
https://doi.org/10.1080/15230430.2020.1744397 https://doaj.org/article/a403b65f0305442aa2bcd3c6cd161f5b |
long_lat |
ENVELOPE(-138.996,-138.996,61.355,61.355) ENVELOPE(-139.718,-139.718,61.059,61.059) |
geographic |
Burwash Landing Canada Donjek Glacier Yukon |
geographic_facet |
Burwash Landing Canada Donjek Glacier Yukon |
genre |
Antarctic and Alpine Research Arctic glacier* Yukon |
genre_facet |
Antarctic and Alpine Research Arctic glacier* Yukon |
op_source |
Arctic, Antarctic, and Alpine Research, Vol 52, Iss 1, Pp 264-280 (2020) |
op_relation |
1523-0430 1938-4246 doi:10.1080/15230430.2020.1744397 https://doaj.org/article/a403b65f0305442aa2bcd3c6cd161f5b |
op_rights |
undefined |
op_doi |
https://doi.org/10.1080/15230430.2020.1744397 |
container_title |
Arctic, Antarctic, and Alpine Research |
container_volume |
52 |
container_issue |
1 |
container_start_page |
264 |
op_container_end_page |
280 |
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1766286871427547136 |