Longbasaba Glacier recession and contribution to its proglacial lake volume between 1988 and 2018
Abstract During the last few decades, the lake-terminating glaciers in the Himalaya have receded faster than the land-terminating glaciers as proglacial lakes have exacerbated the mass loss of their host glaciers. Monitoring the impacts of glacier recession and dynamics on lake extent and water volu...
Published in: | Journal of Glaciology |
---|---|
Main Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press (CUP)
2021
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1017/jog.2020.119 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143020001197 |
id |
crcambridgeupr:10.1017/jog.2020.119 |
---|---|
record_format |
openpolar |
spelling |
crcambridgeupr:10.1017/jog.2020.119 2024-09-15T18:15:38+00:00 Longbasaba Glacier recession and contribution to its proglacial lake volume between 1988 and 2018 Wei, Junfeng Liu, Shiyin Wang, Xin Zhang, Yong Jiang, Zongli Wu, Kunpeng Zhang, Zhen Zhang, Te 2021 http://dx.doi.org/10.1017/jog.2020.119 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143020001197 en eng Cambridge University Press (CUP) http://creativecommons.org/licenses/by/4.0/ Journal of Glaciology volume 67, issue 263, page 473-484 ISSN 0022-1430 1727-5652 journal-article 2021 crcambridgeupr https://doi.org/10.1017/jog.2020.119 2024-08-21T04:04:12Z Abstract During the last few decades, the lake-terminating glaciers in the Himalaya have receded faster than the land-terminating glaciers as proglacial lakes have exacerbated the mass loss of their host glaciers. Monitoring the impacts of glacier recession and dynamics on lake extent and water volume provides an approach to assess the mass interplay between glaciers and proglacial lakes. We describe the recession of Longbasaba Glacier and estimate the mass wastage and its contribution to the water volume of its proglacial lake. The results show that the glacier area has decreased by 3% during 1988–2018, with a more variable recession prior to 2008 than in the last decade. Longbasaba Lake has expanded by 164% in area and 237% in water volume, primarily as a result of meltwater inflow produced from surface lowering of the glacier. Over the periods 1988–2000 and 2000–18, the mass loss contributed by glacier thinning has decreased from 81 to 61% of the total mass loss, accompanied by a nearly doubled contribution from terminus retreat. With the current rate of retreat, Longbasaba glacier is expected to terminate in its proglacial lake for another four decades. The hazard risk of this lake is expected to continue to increase in the near future because of the projected continued glacier mass loss and related lake expansion. Article in Journal/Newspaper Journal of Glaciology Cambridge University Press Journal of Glaciology 67 263 473 484 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
Abstract During the last few decades, the lake-terminating glaciers in the Himalaya have receded faster than the land-terminating glaciers as proglacial lakes have exacerbated the mass loss of their host glaciers. Monitoring the impacts of glacier recession and dynamics on lake extent and water volume provides an approach to assess the mass interplay between glaciers and proglacial lakes. We describe the recession of Longbasaba Glacier and estimate the mass wastage and its contribution to the water volume of its proglacial lake. The results show that the glacier area has decreased by 3% during 1988–2018, with a more variable recession prior to 2008 than in the last decade. Longbasaba Lake has expanded by 164% in area and 237% in water volume, primarily as a result of meltwater inflow produced from surface lowering of the glacier. Over the periods 1988–2000 and 2000–18, the mass loss contributed by glacier thinning has decreased from 81 to 61% of the total mass loss, accompanied by a nearly doubled contribution from terminus retreat. With the current rate of retreat, Longbasaba glacier is expected to terminate in its proglacial lake for another four decades. The hazard risk of this lake is expected to continue to increase in the near future because of the projected continued glacier mass loss and related lake expansion. |
format |
Article in Journal/Newspaper |
author |
Wei, Junfeng Liu, Shiyin Wang, Xin Zhang, Yong Jiang, Zongli Wu, Kunpeng Zhang, Zhen Zhang, Te |
spellingShingle |
Wei, Junfeng Liu, Shiyin Wang, Xin Zhang, Yong Jiang, Zongli Wu, Kunpeng Zhang, Zhen Zhang, Te Longbasaba Glacier recession and contribution to its proglacial lake volume between 1988 and 2018 |
author_facet |
Wei, Junfeng Liu, Shiyin Wang, Xin Zhang, Yong Jiang, Zongli Wu, Kunpeng Zhang, Zhen Zhang, Te |
author_sort |
Wei, Junfeng |
title |
Longbasaba Glacier recession and contribution to its proglacial lake volume between 1988 and 2018 |
title_short |
Longbasaba Glacier recession and contribution to its proglacial lake volume between 1988 and 2018 |
title_full |
Longbasaba Glacier recession and contribution to its proglacial lake volume between 1988 and 2018 |
title_fullStr |
Longbasaba Glacier recession and contribution to its proglacial lake volume between 1988 and 2018 |
title_full_unstemmed |
Longbasaba Glacier recession and contribution to its proglacial lake volume between 1988 and 2018 |
title_sort |
longbasaba glacier recession and contribution to its proglacial lake volume between 1988 and 2018 |
publisher |
Cambridge University Press (CUP) |
publishDate |
2021 |
url |
http://dx.doi.org/10.1017/jog.2020.119 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143020001197 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology volume 67, issue 263, page 473-484 ISSN 0022-1430 1727-5652 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1017/jog.2020.119 |
container_title |
Journal of Glaciology |
container_volume |
67 |
container_issue |
263 |
container_start_page |
473 |
op_container_end_page |
484 |
_version_ |
1810453521942708224 |