A regionally resolved inventory of High Mountain Asia surge-type glaciers, derived from a multi-factor remote sensing approach
Knowledge about the occurrence and characteristics of surge-type glaciers is crucial due to the impact of surging on glacier melt and glacier-related hazards. One of the super-clusters of surge-type glaciers is High Mountain Asia (HMA). However, no consistent region-wide inventory of surge-type glac...
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Copernicus Publications
2022
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00060204 2023-05-15T18:32:33+02:00 A regionally resolved inventory of High Mountain Asia surge-type glaciers, derived from a multi-factor remote sensing approach Guillet, Gregoire King, Owen Lv, Mingyang Ghuffar, Sajid Benn, Douglas Quincey, Duncan Bolch, Tobias 2022-02 electronic https://doi.org/10.5194/tc-16-603-2022 https://noa.gwlb.de/receive/cop_mods_00060204 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00059853/tc-16-603-2022.pdf https://tc.copernicus.org/articles/16/603/2022/tc-16-603-2022.pdf eng eng Copernicus Publications The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-16-603-2022 https://noa.gwlb.de/receive/cop_mods_00060204 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00059853/tc-16-603-2022.pdf https://tc.copernicus.org/articles/16/603/2022/tc-16-603-2022.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2022 ftnonlinearchiv https://doi.org/10.5194/tc-16-603-2022 2022-02-21T00:10:06Z Knowledge about the occurrence and characteristics of surge-type glaciers is crucial due to the impact of surging on glacier melt and glacier-related hazards. One of the super-clusters of surge-type glaciers is High Mountain Asia (HMA). However, no consistent region-wide inventory of surge-type glaciers in HMA exists. We present a regionally resolved inventory of surge-type glaciers based on their behaviour across High Mountain Asia between 2000 and 2018. We identify surge-type behaviour from surface velocity, elevation and feature change patterns using a multi-factor remote sensing approach that combines yearly ITS_LIVE velocity data, DEM differences and very-high-resolution imagery (Bing Maps, Google Earth). Out of the ≈95 000 glaciers in HMA, we identified 666 that show diagnostic surge-type glacier behaviour between 2000 and 2018, which are mainly found in the Karakoram (223) and the Pamir regions (223). The total area covered by the 666 surge-type glaciers represents 19.5 % of the glacierized area in Randolph Glacier Inventory (RGI) V6.0 polygons in HMA. Only 68 glaciers were already identified as “surge type” in the RGI V6.0. We further validate 107 glaciers previously labelled as “probably surge type” and newly identify 491 glaciers, not previously reported in other inventories covering HMA. We finally discuss the possibility of self-organized criticality in glacier surges. Across all regions of HMA, the surge-affected area within glacier complexes displays a significant power law dependency with glacier length. Article in Journal/Newspaper The Cryosphere Niedersächsisches Online-Archiv NOA The Cryosphere 16 2 603 623 |
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Open Polar |
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Niedersächsisches Online-Archiv NOA |
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ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Guillet, Gregoire King, Owen Lv, Mingyang Ghuffar, Sajid Benn, Douglas Quincey, Duncan Bolch, Tobias A regionally resolved inventory of High Mountain Asia surge-type glaciers, derived from a multi-factor remote sensing approach |
topic_facet |
article Verlagsveröffentlichung |
description |
Knowledge about the occurrence and characteristics of surge-type glaciers is crucial due to the impact of surging on glacier melt and glacier-related hazards. One of the super-clusters of surge-type glaciers is High Mountain Asia (HMA). However, no consistent region-wide inventory of surge-type glaciers in HMA exists. We present a regionally resolved inventory of surge-type glaciers based on their behaviour across High Mountain Asia between 2000 and 2018. We identify surge-type behaviour from surface velocity, elevation and feature change patterns using a multi-factor remote sensing approach that combines yearly ITS_LIVE velocity data, DEM differences and very-high-resolution imagery (Bing Maps, Google Earth). Out of the ≈95 000 glaciers in HMA, we identified 666 that show diagnostic surge-type glacier behaviour between 2000 and 2018, which are mainly found in the Karakoram (223) and the Pamir regions (223). The total area covered by the 666 surge-type glaciers represents 19.5 % of the glacierized area in Randolph Glacier Inventory (RGI) V6.0 polygons in HMA. Only 68 glaciers were already identified as “surge type” in the RGI V6.0. We further validate 107 glaciers previously labelled as “probably surge type” and newly identify 491 glaciers, not previously reported in other inventories covering HMA. We finally discuss the possibility of self-organized criticality in glacier surges. Across all regions of HMA, the surge-affected area within glacier complexes displays a significant power law dependency with glacier length. |
format |
Article in Journal/Newspaper |
author |
Guillet, Gregoire King, Owen Lv, Mingyang Ghuffar, Sajid Benn, Douglas Quincey, Duncan Bolch, Tobias |
author_facet |
Guillet, Gregoire King, Owen Lv, Mingyang Ghuffar, Sajid Benn, Douglas Quincey, Duncan Bolch, Tobias |
author_sort |
Guillet, Gregoire |
title |
A regionally resolved inventory of High Mountain Asia surge-type glaciers, derived from a multi-factor remote sensing approach |
title_short |
A regionally resolved inventory of High Mountain Asia surge-type glaciers, derived from a multi-factor remote sensing approach |
title_full |
A regionally resolved inventory of High Mountain Asia surge-type glaciers, derived from a multi-factor remote sensing approach |
title_fullStr |
A regionally resolved inventory of High Mountain Asia surge-type glaciers, derived from a multi-factor remote sensing approach |
title_full_unstemmed |
A regionally resolved inventory of High Mountain Asia surge-type glaciers, derived from a multi-factor remote sensing approach |
title_sort |
regionally resolved inventory of high mountain asia surge-type glaciers, derived from a multi-factor remote sensing approach |
publisher |
Copernicus Publications |
publishDate |
2022 |
url |
https://doi.org/10.5194/tc-16-603-2022 https://noa.gwlb.de/receive/cop_mods_00060204 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00059853/tc-16-603-2022.pdf https://tc.copernicus.org/articles/16/603/2022/tc-16-603-2022.pdf |
genre |
The Cryosphere |
genre_facet |
The Cryosphere |
op_relation |
The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-16-603-2022 https://noa.gwlb.de/receive/cop_mods_00060204 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00059853/tc-16-603-2022.pdf https://tc.copernicus.org/articles/16/603/2022/tc-16-603-2022.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/tc-16-603-2022 |
container_title |
The Cryosphere |
container_volume |
16 |
container_issue |
2 |
container_start_page |
603 |
op_container_end_page |
623 |
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1766216727229628416 |