Patterns and mechanisms of repeat drainages of glacier-dammed Dań Zhùr (Donjek) Lake, Yukon
Dań Zhùr (Donjek) Glacier is a surge-type glacier that undergoes cyclical periods of rapid advance over ∼1–2 years, followed by retreat for ∼10 years. Since the 1990s, the advances have caused the formation of ice-dammed Dań Zhùr Lake, which has filled and drained in summers following a surge event....
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Canadian Science Publishing
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ftdoajarticles:oai:doaj.org/article:825e66f3a7794f15a1de400c567bd181 2024-09-30T14:27:49+00:00 Patterns and mechanisms of repeat drainages of glacier-dammed Dań Zhùr (Donjek) Lake, Yukon Moya Painter Luke Copland Christine Dow Will Kochtitzky Dorota Medrzycka 2024-09-01T00:00:00Z https://doi.org/10.1139/as-2023-0001 https://doaj.org/article/825e66f3a7794f15a1de400c567bd181 EN FR eng fre Canadian Science Publishing https://cdnsciencepub.com/doi/10.1139/as-2023-0001 https://doaj.org/toc/2368-7460 doi:10.1139/as-2023-0001 2368-7460 https://doaj.org/article/825e66f3a7794f15a1de400c567bd181 Arctic Science, Vol 10, Iss 3, Pp 583-595 (2024) glacier surge glacier lake outburst flood ice-dammed lake ice hazard Environmental sciences GE1-350 Environmental engineering TA170-171 article 2024 ftdoajarticles https://doi.org/10.1139/as-2023-0001 2024-09-02T15:34:35Z Dań Zhùr (Donjek) Glacier is a surge-type glacier that undergoes cyclical periods of rapid advance over ∼1–2 years, followed by retreat for ∼10 years. Since the 1990s, the advances have caused the formation of ice-dammed Dań Zhùr Lake, which has filled and drained in summers following a surge event. Here, we report how these drainages initially occur through a subglacial channel under the glacier terminus, which then typically closes the following winter, enabling another lake to form and drain the next summer. However, our remote sensing and field observations indicate that after several drainage events, a subaerial ice canyon is formed through the glacier terminus, which prevents another lake from forming until after the glacier surges again. We predict that the next surge of Dań Zhùr Glacier will occur around the mid-2020s, causing the formation of a larger Dań Zhùr Lake during the following quiescent phase because, despite periodic advances, a long-term trend of glacier recession is exposing a larger basin for the lake to form in. However, each subsequent surge is causing less terminus advance than the previous one, until ultimately the surges will be insufficient to dam Dań Zhùr Chù’ (Donjek River), and lakes will cease to form. Article in Journal/Newspaper Arctic Yukon Directory of Open Access Journals: DOAJ Articles Dammed Lake ENVELOPE(-68.258,-68.258,68.496,68.496) Donjek Glacier ENVELOPE(-139.718,-139.718,61.059,61.059) Donjek River ENVELOPE(-140.004,-140.004,62.602,62.602) Yukon Arctic Science 10 3 583 595 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English French |
topic |
glacier surge glacier lake outburst flood ice-dammed lake ice hazard Environmental sciences GE1-350 Environmental engineering TA170-171 |
spellingShingle |
glacier surge glacier lake outburst flood ice-dammed lake ice hazard Environmental sciences GE1-350 Environmental engineering TA170-171 Moya Painter Luke Copland Christine Dow Will Kochtitzky Dorota Medrzycka Patterns and mechanisms of repeat drainages of glacier-dammed Dań Zhùr (Donjek) Lake, Yukon |
topic_facet |
glacier surge glacier lake outburst flood ice-dammed lake ice hazard Environmental sciences GE1-350 Environmental engineering TA170-171 |
description |
Dań Zhùr (Donjek) Glacier is a surge-type glacier that undergoes cyclical periods of rapid advance over ∼1–2 years, followed by retreat for ∼10 years. Since the 1990s, the advances have caused the formation of ice-dammed Dań Zhùr Lake, which has filled and drained in summers following a surge event. Here, we report how these drainages initially occur through a subglacial channel under the glacier terminus, which then typically closes the following winter, enabling another lake to form and drain the next summer. However, our remote sensing and field observations indicate that after several drainage events, a subaerial ice canyon is formed through the glacier terminus, which prevents another lake from forming until after the glacier surges again. We predict that the next surge of Dań Zhùr Glacier will occur around the mid-2020s, causing the formation of a larger Dań Zhùr Lake during the following quiescent phase because, despite periodic advances, a long-term trend of glacier recession is exposing a larger basin for the lake to form in. However, each subsequent surge is causing less terminus advance than the previous one, until ultimately the surges will be insufficient to dam Dań Zhùr Chù’ (Donjek River), and lakes will cease to form. |
format |
Article in Journal/Newspaper |
author |
Moya Painter Luke Copland Christine Dow Will Kochtitzky Dorota Medrzycka |
author_facet |
Moya Painter Luke Copland Christine Dow Will Kochtitzky Dorota Medrzycka |
author_sort |
Moya Painter |
title |
Patterns and mechanisms of repeat drainages of glacier-dammed Dań Zhùr (Donjek) Lake, Yukon |
title_short |
Patterns and mechanisms of repeat drainages of glacier-dammed Dań Zhùr (Donjek) Lake, Yukon |
title_full |
Patterns and mechanisms of repeat drainages of glacier-dammed Dań Zhùr (Donjek) Lake, Yukon |
title_fullStr |
Patterns and mechanisms of repeat drainages of glacier-dammed Dań Zhùr (Donjek) Lake, Yukon |
title_full_unstemmed |
Patterns and mechanisms of repeat drainages of glacier-dammed Dań Zhùr (Donjek) Lake, Yukon |
title_sort |
patterns and mechanisms of repeat drainages of glacier-dammed dań zhùr (donjek) lake, yukon |
publisher |
Canadian Science Publishing |
publishDate |
2024 |
url |
https://doi.org/10.1139/as-2023-0001 https://doaj.org/article/825e66f3a7794f15a1de400c567bd181 |
long_lat |
ENVELOPE(-68.258,-68.258,68.496,68.496) ENVELOPE(-139.718,-139.718,61.059,61.059) ENVELOPE(-140.004,-140.004,62.602,62.602) |
geographic |
Dammed Lake Donjek Glacier Donjek River Yukon |
geographic_facet |
Dammed Lake Donjek Glacier Donjek River Yukon |
genre |
Arctic Yukon |
genre_facet |
Arctic Yukon |
op_source |
Arctic Science, Vol 10, Iss 3, Pp 583-595 (2024) |
op_relation |
https://cdnsciencepub.com/doi/10.1139/as-2023-0001 https://doaj.org/toc/2368-7460 doi:10.1139/as-2023-0001 2368-7460 https://doaj.org/article/825e66f3a7794f15a1de400c567bd181 |
op_doi |
https://doi.org/10.1139/as-2023-0001 |
container_title |
Arctic Science |
container_volume |
10 |
container_issue |
3 |
container_start_page |
583 |
op_container_end_page |
595 |
_version_ |
1811633831297417216 |