Surging glaciers in High Mountain Asia between 1986 and 2021
High Mountain Asia (HMA) is one of the main distribution areas of surging glaciers in the world. The glacier change represented by the Karakoram anomaly has been a topic of wide concern. Surging glaciers not only reshape the peri-glacial landscape, but may also directly or indirectly lead to disaste...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00062589 2023-05-15T16:20:44+02:00 Surging glaciers in High Mountain Asia between 1986 and 2021 Sun, Meiping Zhou, Sugang Yao, Xiaojun Duan, Hongyu Zhang, Yuan 2022-09 electronic https://doi.org/10.5194/egusphere-2022-765 https://noa.gwlb.de/receive/cop_mods_00062589 https://egusphere.copernicus.org/preprints/egusphere-2022-765/egusphere-2022-765.pdf eng eng Copernicus Publications https://doi.org/10.5194/egusphere-2022-765 https://noa.gwlb.de/receive/cop_mods_00062589 https://egusphere.copernicus.org/preprints/egusphere-2022-765/egusphere-2022-765.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/restrictedAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2022 ftnonlinearchiv https://doi.org/10.5194/egusphere-2022-765 2022-09-11T23:11:57Z High Mountain Asia (HMA) is one of the main distribution areas of surging glaciers in the world. The glacier change represented by the Karakoram anomaly has been a topic of wide concern. Surging glaciers not only reshape the peri-glacial landscape, but may also directly or indirectly lead to disasters. Therefore, it is of great importance to understand the distribution characteristics, periodic laws, and occurrence mechanisms of surging glaciers. Based on Landsat TM/ETM+/OLI remote sensing images from 1986–2021, a total of 244 surging glaciers in HMA were identified, covering an area of 10974.25 km2, accounting for 11.25 % of the total area of glaciers in HMA. The Karakoram Range and Pamirs are the main mountain/plateau where 185 surging glaciers are more highly concentrated. Three basins, including Amu Darya, Tarim and Indus, have 208 surging glaciers comprising 85.25 % of the total amount of surging glaciers in HMA, covering an area of 10096.89 km2. From 1986–2021, these surging glaciers advanced at least 2802 times, and exhibited different temporal and spatial trends. Obvious differences exist in the surge phase and the quiescent phase of glaciers in different regions of HMA. The surge phase of surging glaciers in the Karakoram Range and Pamirs is generally short, mostly between 2~6a, the quiescent phase is 5~19a, and the surging period is 9~24a. The mechanism of surging glaciers in HMA is more complex, which is different from Svalbard and Alaska glaciers. Article in Journal/Newspaper glacier glacier glaciers Svalbard Alaska Niedersächsisches Online-Archiv NOA Svalbard |
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ftnonlinearchiv |
language |
English |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Sun, Meiping Zhou, Sugang Yao, Xiaojun Duan, Hongyu Zhang, Yuan Surging glaciers in High Mountain Asia between 1986 and 2021 |
topic_facet |
article Verlagsveröffentlichung |
description |
High Mountain Asia (HMA) is one of the main distribution areas of surging glaciers in the world. The glacier change represented by the Karakoram anomaly has been a topic of wide concern. Surging glaciers not only reshape the peri-glacial landscape, but may also directly or indirectly lead to disasters. Therefore, it is of great importance to understand the distribution characteristics, periodic laws, and occurrence mechanisms of surging glaciers. Based on Landsat TM/ETM+/OLI remote sensing images from 1986–2021, a total of 244 surging glaciers in HMA were identified, covering an area of 10974.25 km2, accounting for 11.25 % of the total area of glaciers in HMA. The Karakoram Range and Pamirs are the main mountain/plateau where 185 surging glaciers are more highly concentrated. Three basins, including Amu Darya, Tarim and Indus, have 208 surging glaciers comprising 85.25 % of the total amount of surging glaciers in HMA, covering an area of 10096.89 km2. From 1986–2021, these surging glaciers advanced at least 2802 times, and exhibited different temporal and spatial trends. Obvious differences exist in the surge phase and the quiescent phase of glaciers in different regions of HMA. The surge phase of surging glaciers in the Karakoram Range and Pamirs is generally short, mostly between 2~6a, the quiescent phase is 5~19a, and the surging period is 9~24a. The mechanism of surging glaciers in HMA is more complex, which is different from Svalbard and Alaska glaciers. |
format |
Article in Journal/Newspaper |
author |
Sun, Meiping Zhou, Sugang Yao, Xiaojun Duan, Hongyu Zhang, Yuan |
author_facet |
Sun, Meiping Zhou, Sugang Yao, Xiaojun Duan, Hongyu Zhang, Yuan |
author_sort |
Sun, Meiping |
title |
Surging glaciers in High Mountain Asia between 1986 and 2021 |
title_short |
Surging glaciers in High Mountain Asia between 1986 and 2021 |
title_full |
Surging glaciers in High Mountain Asia between 1986 and 2021 |
title_fullStr |
Surging glaciers in High Mountain Asia between 1986 and 2021 |
title_full_unstemmed |
Surging glaciers in High Mountain Asia between 1986 and 2021 |
title_sort |
surging glaciers in high mountain asia between 1986 and 2021 |
publisher |
Copernicus Publications |
publishDate |
2022 |
url |
https://doi.org/10.5194/egusphere-2022-765 https://noa.gwlb.de/receive/cop_mods_00062589 https://egusphere.copernicus.org/preprints/egusphere-2022-765/egusphere-2022-765.pdf |
geographic |
Svalbard |
geographic_facet |
Svalbard |
genre |
glacier glacier glaciers Svalbard Alaska |
genre_facet |
glacier glacier glaciers Svalbard Alaska |
op_relation |
https://doi.org/10.5194/egusphere-2022-765 https://noa.gwlb.de/receive/cop_mods_00062589 https://egusphere.copernicus.org/preprints/egusphere-2022-765/egusphere-2022-765.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/restrictedAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/egusphere-2022-765 |
_version_ |
1766008706372206592 |