Climate change and the global pattern of moraine-dammed glacial lake outburst floods
Despite recent research identifying a clear anthropogenic impact on glacier recession, the effect of recent climate change on glacier-related hazards is at present unclear. Here we present the first global spatio-temporal assessment of glacial lake outburst floods (GLOFs) focusing explicitly on lake...
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fttriple:oai:gotriple.eu:oai:doaj.org/article:aae528b7547247dd8807d8ec380ab77d 2023-05-15T18:32:19+02:00 Climate change and the global pattern of moraine-dammed glacial lake outburst floods S. Harrison J. S. Kargel C. Huggel J. Reynolds D. H. Shugar R. A. Betts A. Emmer N. Glasser U. K. Haritashya J. Klimeš L. Reinhardt Y. Schaub A. Wiltshire D. Regmi V. Vilímek 2018-04-01 https://doi.org/10.5194/tc-12-1195-2018 https://www.the-cryosphere.net/12/1195/2018/tc-12-1195-2018.pdf https://doaj.org/article/aae528b7547247dd8807d8ec380ab77d en eng Copernicus Publications doi:10.5194/tc-12-1195-2018 1994-0416 1994-0424 https://www.the-cryosphere.net/12/1195/2018/tc-12-1195-2018.pdf https://doaj.org/article/aae528b7547247dd8807d8ec380ab77d undefined The Cryosphere, Vol 12, Pp 1195-1209 (2018) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2018 fttriple https://doi.org/10.5194/tc-12-1195-2018 2023-01-22T19:26:02Z Despite recent research identifying a clear anthropogenic impact on glacier recession, the effect of recent climate change on glacier-related hazards is at present unclear. Here we present the first global spatio-temporal assessment of glacial lake outburst floods (GLOFs) focusing explicitly on lake drainage following moraine dam failure. These floods occur as mountain glaciers recede and downwaste. GLOFs can have an enormous impact on downstream communities and infrastructure. Our assessment of GLOFs associated with the rapid drainage of moraine-dammed lakes provides insights into the historical trends of GLOFs and their distributions under current and future global climate change. We observe a clear global increase in GLOF frequency and their regularity around 1930, which likely represents a lagged response to post-Little Ice Age warming. Notably, we also show that GLOF frequency and regularity – rather unexpectedly – have declined in recent decades even during a time of rapid glacier recession. Although previous studies have suggested that GLOFs will increase in response to climate warming and glacier recession, our global results demonstrate that this has not yet clearly happened. From an assessment of the timing of climate forcing, lag times in glacier recession, lake formation and moraine-dam failure, we predict increased GLOF frequencies during the next decades and into the 22nd century. Article in Journal/Newspaper The Cryosphere Unknown Glacial Lake ENVELOPE(-129.463,-129.463,58.259,58.259) The Cryosphere 12 4 1195 1209 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
geo envir |
spellingShingle |
geo envir S. Harrison J. S. Kargel C. Huggel J. Reynolds D. H. Shugar R. A. Betts A. Emmer N. Glasser U. K. Haritashya J. Klimeš L. Reinhardt Y. Schaub A. Wiltshire D. Regmi V. Vilímek Climate change and the global pattern of moraine-dammed glacial lake outburst floods |
topic_facet |
geo envir |
description |
Despite recent research identifying a clear anthropogenic impact on glacier recession, the effect of recent climate change on glacier-related hazards is at present unclear. Here we present the first global spatio-temporal assessment of glacial lake outburst floods (GLOFs) focusing explicitly on lake drainage following moraine dam failure. These floods occur as mountain glaciers recede and downwaste. GLOFs can have an enormous impact on downstream communities and infrastructure. Our assessment of GLOFs associated with the rapid drainage of moraine-dammed lakes provides insights into the historical trends of GLOFs and their distributions under current and future global climate change. We observe a clear global increase in GLOF frequency and their regularity around 1930, which likely represents a lagged response to post-Little Ice Age warming. Notably, we also show that GLOF frequency and regularity – rather unexpectedly – have declined in recent decades even during a time of rapid glacier recession. Although previous studies have suggested that GLOFs will increase in response to climate warming and glacier recession, our global results demonstrate that this has not yet clearly happened. From an assessment of the timing of climate forcing, lag times in glacier recession, lake formation and moraine-dam failure, we predict increased GLOF frequencies during the next decades and into the 22nd century. |
format |
Article in Journal/Newspaper |
author |
S. Harrison J. S. Kargel C. Huggel J. Reynolds D. H. Shugar R. A. Betts A. Emmer N. Glasser U. K. Haritashya J. Klimeš L. Reinhardt Y. Schaub A. Wiltshire D. Regmi V. Vilímek |
author_facet |
S. Harrison J. S. Kargel C. Huggel J. Reynolds D. H. Shugar R. A. Betts A. Emmer N. Glasser U. K. Haritashya J. Klimeš L. Reinhardt Y. Schaub A. Wiltshire D. Regmi V. Vilímek |
author_sort |
S. Harrison |
title |
Climate change and the global pattern of moraine-dammed glacial lake outburst floods |
title_short |
Climate change and the global pattern of moraine-dammed glacial lake outburst floods |
title_full |
Climate change and the global pattern of moraine-dammed glacial lake outburst floods |
title_fullStr |
Climate change and the global pattern of moraine-dammed glacial lake outburst floods |
title_full_unstemmed |
Climate change and the global pattern of moraine-dammed glacial lake outburst floods |
title_sort |
climate change and the global pattern of moraine-dammed glacial lake outburst floods |
publisher |
Copernicus Publications |
publishDate |
2018 |
url |
https://doi.org/10.5194/tc-12-1195-2018 https://www.the-cryosphere.net/12/1195/2018/tc-12-1195-2018.pdf https://doaj.org/article/aae528b7547247dd8807d8ec380ab77d |
long_lat |
ENVELOPE(-129.463,-129.463,58.259,58.259) |
geographic |
Glacial Lake |
geographic_facet |
Glacial Lake |
genre |
The Cryosphere |
genre_facet |
The Cryosphere |
op_source |
The Cryosphere, Vol 12, Pp 1195-1209 (2018) |
op_relation |
doi:10.5194/tc-12-1195-2018 1994-0416 1994-0424 https://www.the-cryosphere.net/12/1195/2018/tc-12-1195-2018.pdf https://doaj.org/article/aae528b7547247dd8807d8ec380ab77d |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/tc-12-1195-2018 |
container_title |
The Cryosphere |
container_volume |
12 |
container_issue |
4 |
container_start_page |
1195 |
op_container_end_page |
1209 |
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1766216418507882496 |