Examining geodetic glacier mass balance in the eastern Pamir transition zone
Glaciers in the eastern Pamir have reportedly been gaining mass during recent decades, even though glaciers in most other regions in High Mountain Asia have been in recession. Questions still remain about whether the trend is strengthening or weakening, and how far the positive balances extend into...
Published in: | Journal of Glaciology |
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Language: | English |
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2020
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Online Access: | https://research-portal.st-andrews.ac.uk/en/researchoutput/examining-geodetic-glacier-mass-balance-in-the-eastern-pamir-transition-zone(d58de895-7f65-407b-84f6-2b7a69096e1a).html https://doi.org/10.1017/jog.2020.54 https://research-repository.st-andrews.ac.uk/bitstream/10023/20594/1/Lv_2020_JG_Geodetic_CC.pdf |
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ftunstandrewcris:oai:research-portal.st-andrews.ac.uk:publications/d58de895-7f65-407b-84f6-2b7a69096e1a 2024-09-15T18:15:42+00:00 Examining geodetic glacier mass balance in the eastern Pamir transition zone Lv, Mingyang Quincey, Duncan J. Guo, Huadong King, Owen Liu, Guang Yan, Shiyong Lu, Xiancai Ruan, Zhixing 2020-08-03 application/pdf https://research-portal.st-andrews.ac.uk/en/researchoutput/examining-geodetic-glacier-mass-balance-in-the-eastern-pamir-transition-zone(d58de895-7f65-407b-84f6-2b7a69096e1a).html https://doi.org/10.1017/jog.2020.54 https://research-repository.st-andrews.ac.uk/bitstream/10023/20594/1/Lv_2020_JG_Geodetic_CC.pdf eng eng https://research-portal.st-andrews.ac.uk/en/researchoutput/examining-geodetic-glacier-mass-balance-in-the-eastern-pamir-transition-zone(d58de895-7f65-407b-84f6-2b7a69096e1a).html info:eu-repo/semantics/openAccess Lv , M , Quincey , D J , Guo , H , King , O , Liu , G , Yan , S , Lu , X & Ruan , Z 2020 , ' Examining geodetic glacier mass balance in the eastern Pamir transition zone ' , Journal of Glaciology , vol. First View . https://doi.org/10.1017/jog.2020.54 Digital elevation model Eastern Pamir Glacier mass balance Surge-type glaciers article 2020 ftunstandrewcris https://doi.org/10.1017/jog.2020.54 2024-07-31T23:33:09Z Glaciers in the eastern Pamir have reportedly been gaining mass during recent decades, even though glaciers in most other regions in High Mountain Asia have been in recession. Questions still remain about whether the trend is strengthening or weakening, and how far the positive balances extend into the eastern Pamir. To address these gaps, we use three different digital elevation models to reconstruct glacier surface elevation changes over two periods (2000–09 and 2000–15/16). We characterize the eastern Pamir as a zone of transition from positive to negative mass balance with the boundary lying at the northern end of Kongur Tagh, and find that glaciers situated at higher elevations are those with the most positive balances. Most (67% of 55) glaciers displayed a net mass gain since the 21st century. This led to an increasing regional geodetic glacier mass balance from −0.06 ± 0.16 m w.e. a −1 in 2000–09 to 0.06 ± 0.04 m w.e. a −1 in 2000–15/16. Surge-type glaciers, which are prevalent in the eastern Pamir, showed fluctuations in mass balance on an individual scale during and after surges, but no statistical difference compared to non-surge-type glaciers when aggregated across the region. Article in Journal/Newspaper Journal of Glaciology University of St Andrews: Research Portal Journal of Glaciology 66 260 927 937 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
Digital elevation model Eastern Pamir Glacier mass balance Surge-type glaciers |
spellingShingle |
Digital elevation model Eastern Pamir Glacier mass balance Surge-type glaciers Lv, Mingyang Quincey, Duncan J. Guo, Huadong King, Owen Liu, Guang Yan, Shiyong Lu, Xiancai Ruan, Zhixing Examining geodetic glacier mass balance in the eastern Pamir transition zone |
topic_facet |
Digital elevation model Eastern Pamir Glacier mass balance Surge-type glaciers |
description |
Glaciers in the eastern Pamir have reportedly been gaining mass during recent decades, even though glaciers in most other regions in High Mountain Asia have been in recession. Questions still remain about whether the trend is strengthening or weakening, and how far the positive balances extend into the eastern Pamir. To address these gaps, we use three different digital elevation models to reconstruct glacier surface elevation changes over two periods (2000–09 and 2000–15/16). We characterize the eastern Pamir as a zone of transition from positive to negative mass balance with the boundary lying at the northern end of Kongur Tagh, and find that glaciers situated at higher elevations are those with the most positive balances. Most (67% of 55) glaciers displayed a net mass gain since the 21st century. This led to an increasing regional geodetic glacier mass balance from −0.06 ± 0.16 m w.e. a −1 in 2000–09 to 0.06 ± 0.04 m w.e. a −1 in 2000–15/16. Surge-type glaciers, which are prevalent in the eastern Pamir, showed fluctuations in mass balance on an individual scale during and after surges, but no statistical difference compared to non-surge-type glaciers when aggregated across the region. |
format |
Article in Journal/Newspaper |
author |
Lv, Mingyang Quincey, Duncan J. Guo, Huadong King, Owen Liu, Guang Yan, Shiyong Lu, Xiancai Ruan, Zhixing |
author_facet |
Lv, Mingyang Quincey, Duncan J. Guo, Huadong King, Owen Liu, Guang Yan, Shiyong Lu, Xiancai Ruan, Zhixing |
author_sort |
Lv, Mingyang |
title |
Examining geodetic glacier mass balance in the eastern Pamir transition zone |
title_short |
Examining geodetic glacier mass balance in the eastern Pamir transition zone |
title_full |
Examining geodetic glacier mass balance in the eastern Pamir transition zone |
title_fullStr |
Examining geodetic glacier mass balance in the eastern Pamir transition zone |
title_full_unstemmed |
Examining geodetic glacier mass balance in the eastern Pamir transition zone |
title_sort |
examining geodetic glacier mass balance in the eastern pamir transition zone |
publishDate |
2020 |
url |
https://research-portal.st-andrews.ac.uk/en/researchoutput/examining-geodetic-glacier-mass-balance-in-the-eastern-pamir-transition-zone(d58de895-7f65-407b-84f6-2b7a69096e1a).html https://doi.org/10.1017/jog.2020.54 https://research-repository.st-andrews.ac.uk/bitstream/10023/20594/1/Lv_2020_JG_Geodetic_CC.pdf |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Lv , M , Quincey , D J , Guo , H , King , O , Liu , G , Yan , S , Lu , X & Ruan , Z 2020 , ' Examining geodetic glacier mass balance in the eastern Pamir transition zone ' , Journal of Glaciology , vol. First View . https://doi.org/10.1017/jog.2020.54 |
op_relation |
https://research-portal.st-andrews.ac.uk/en/researchoutput/examining-geodetic-glacier-mass-balance-in-the-eastern-pamir-transition-zone(d58de895-7f65-407b-84f6-2b7a69096e1a).html |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1017/jog.2020.54 |
container_title |
Journal of Glaciology |
container_volume |
66 |
container_issue |
260 |
container_start_page |
927 |
op_container_end_page |
937 |
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1810453634121465856 |