Earth observation to investigate occurrence, characteristics and changes of glaciers, glacial lakes and rock glaciers in Poiqu River Basin (Central Himalaya)
Meltwater from the cryosphere contributes a significant fraction of the freshwater resources in the countries receiving water from the Third Pole. Within the ESA-MOST Dragon 4 project, we addressed in particular changes of glaciers and proglacial lakes and their interaction. In addition, we investig...
Published in: | Remote Sensing |
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Main Authors: | , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2022
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Online Access: | https://risweb.st-andrews.ac.uk/portal/en/researchoutput/earth-observation-to-investigate-occurrence-characteristics-and-changes-of-glaciers-glacial-lakes-and-rock-glaciers-in-poiqu-river-basin-central-himalaya(0774fb6d-7b95-4db1-933b-8435266f61fc).html https://doi.org/10.3390/rs14081927 https://research-repository.st-andrews.ac.uk/bitstream/10023/25194/1/Bolch_2022_RS_Earth_CC.pdf https://www.mdpi.com/2072-4292/14/8/1927 |
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ftunstandrewcris:oai:risweb.st-andrews.ac.uk:publications/0774fb6d-7b95-4db1-933b-8435266f61fc 2023-05-15T17:58:00+02:00 Earth observation to investigate occurrence, characteristics and changes of glaciers, glacial lakes and rock glaciers in Poiqu River Basin (Central Himalaya) Bolch, Tobias Tandong, Yao Bhattacharya, Atanu Yan, Hu King, Owen Lin, Liu Pronk, Jan B. Rastner, Philipp Guoqing, Zhang 2022-04-15 application/pdf https://risweb.st-andrews.ac.uk/portal/en/researchoutput/earth-observation-to-investigate-occurrence-characteristics-and-changes-of-glaciers-glacial-lakes-and-rock-glaciers-in-poiqu-river-basin-central-himalaya(0774fb6d-7b95-4db1-933b-8435266f61fc).html https://doi.org/10.3390/rs14081927 https://research-repository.st-andrews.ac.uk/bitstream/10023/25194/1/Bolch_2022_RS_Earth_CC.pdf https://www.mdpi.com/2072-4292/14/8/1927 eng eng info:eu-repo/semantics/openAccess Bolch , T , Tandong , Y , Bhattacharya , A , Yan , H , King , O , Lin , L , Pronk , J B , Rastner , P & Guoqing , Z 2022 , ' Earth observation to investigate occurrence, characteristics and changes of glaciers, glacial lakes and rock glaciers in Poiqu River Basin (Central Himalaya) ' , Remote Sensing , vol. 14 , no. 8 , 1927 . https://doi.org/10.3390/rs14081927 Himalaya Glacier changes Glacier velocity Geodetic method Glacial lakes Rock glacier article 2022 ftunstandrewcris https://doi.org/10.3390/rs14081927 2022-10-13T15:27:07Z Meltwater from the cryosphere contributes a significant fraction of the freshwater resources in the countries receiving water from the Third Pole. Within the ESA-MOST Dragon 4 project, we addressed in particular changes of glaciers and proglacial lakes and their interaction. In addition, we investigated rock glaciers in permafrost environments. Here, we focus on the detailed investigations which have been performed in the Poiqu River Basin, central Himalaya. We used in particular multi-temporal stereo satellite imagery, including high-resolution 1960/70s Corona and Hexagon spy images and contemporary Pleiades data. Sentinel-2 data was applied to assess the glacier flow. The results reveal that glacier mass loss continuously increased with a mass budget of −0.42 ± 0.11 m w.e.a −1 for the period 2004–2018. The mass loss has been primarily driven by an increase in summer temperature and is further accelerated by proglacial lakes, which have become abundant. The glacial lake area more than doubled between 1964 and 2017. The termini of glaciers that flow into lakes moved on average twice as fast as glaciers terminating on land, indicating that dynamical thinning plays an important role. Rock glaciers are abundant, covering approximately 21 km 2 , which was more than 10% of the glacier area (approximately 190 km 2 ) in 2015. With ongoing glacier wastage, rock glaciers can become an increasingly important water resource. Article in Journal/Newspaper permafrost University of St Andrews: Research Portal Glacial Lake ENVELOPE(-129.463,-129.463,58.259,58.259) Pleiades ENVELOPE(165.533,165.533,-72.700,-72.700) Remote Sensing 14 8 1927 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
Himalaya Glacier changes Glacier velocity Geodetic method Glacial lakes Rock glacier |
spellingShingle |
Himalaya Glacier changes Glacier velocity Geodetic method Glacial lakes Rock glacier Bolch, Tobias Tandong, Yao Bhattacharya, Atanu Yan, Hu King, Owen Lin, Liu Pronk, Jan B. Rastner, Philipp Guoqing, Zhang Earth observation to investigate occurrence, characteristics and changes of glaciers, glacial lakes and rock glaciers in Poiqu River Basin (Central Himalaya) |
topic_facet |
Himalaya Glacier changes Glacier velocity Geodetic method Glacial lakes Rock glacier |
description |
Meltwater from the cryosphere contributes a significant fraction of the freshwater resources in the countries receiving water from the Third Pole. Within the ESA-MOST Dragon 4 project, we addressed in particular changes of glaciers and proglacial lakes and their interaction. In addition, we investigated rock glaciers in permafrost environments. Here, we focus on the detailed investigations which have been performed in the Poiqu River Basin, central Himalaya. We used in particular multi-temporal stereo satellite imagery, including high-resolution 1960/70s Corona and Hexagon spy images and contemporary Pleiades data. Sentinel-2 data was applied to assess the glacier flow. The results reveal that glacier mass loss continuously increased with a mass budget of −0.42 ± 0.11 m w.e.a −1 for the period 2004–2018. The mass loss has been primarily driven by an increase in summer temperature and is further accelerated by proglacial lakes, which have become abundant. The glacial lake area more than doubled between 1964 and 2017. The termini of glaciers that flow into lakes moved on average twice as fast as glaciers terminating on land, indicating that dynamical thinning plays an important role. Rock glaciers are abundant, covering approximately 21 km 2 , which was more than 10% of the glacier area (approximately 190 km 2 ) in 2015. With ongoing glacier wastage, rock glaciers can become an increasingly important water resource. |
format |
Article in Journal/Newspaper |
author |
Bolch, Tobias Tandong, Yao Bhattacharya, Atanu Yan, Hu King, Owen Lin, Liu Pronk, Jan B. Rastner, Philipp Guoqing, Zhang |
author_facet |
Bolch, Tobias Tandong, Yao Bhattacharya, Atanu Yan, Hu King, Owen Lin, Liu Pronk, Jan B. Rastner, Philipp Guoqing, Zhang |
author_sort |
Bolch, Tobias |
title |
Earth observation to investigate occurrence, characteristics and changes of glaciers, glacial lakes and rock glaciers in Poiqu River Basin (Central Himalaya) |
title_short |
Earth observation to investigate occurrence, characteristics and changes of glaciers, glacial lakes and rock glaciers in Poiqu River Basin (Central Himalaya) |
title_full |
Earth observation to investigate occurrence, characteristics and changes of glaciers, glacial lakes and rock glaciers in Poiqu River Basin (Central Himalaya) |
title_fullStr |
Earth observation to investigate occurrence, characteristics and changes of glaciers, glacial lakes and rock glaciers in Poiqu River Basin (Central Himalaya) |
title_full_unstemmed |
Earth observation to investigate occurrence, characteristics and changes of glaciers, glacial lakes and rock glaciers in Poiqu River Basin (Central Himalaya) |
title_sort |
earth observation to investigate occurrence, characteristics and changes of glaciers, glacial lakes and rock glaciers in poiqu river basin (central himalaya) |
publishDate |
2022 |
url |
https://risweb.st-andrews.ac.uk/portal/en/researchoutput/earth-observation-to-investigate-occurrence-characteristics-and-changes-of-glaciers-glacial-lakes-and-rock-glaciers-in-poiqu-river-basin-central-himalaya(0774fb6d-7b95-4db1-933b-8435266f61fc).html https://doi.org/10.3390/rs14081927 https://research-repository.st-andrews.ac.uk/bitstream/10023/25194/1/Bolch_2022_RS_Earth_CC.pdf https://www.mdpi.com/2072-4292/14/8/1927 |
long_lat |
ENVELOPE(-129.463,-129.463,58.259,58.259) ENVELOPE(165.533,165.533,-72.700,-72.700) |
geographic |
Glacial Lake Pleiades |
geographic_facet |
Glacial Lake Pleiades |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Bolch , T , Tandong , Y , Bhattacharya , A , Yan , H , King , O , Lin , L , Pronk , J B , Rastner , P & Guoqing , Z 2022 , ' Earth observation to investigate occurrence, characteristics and changes of glaciers, glacial lakes and rock glaciers in Poiqu River Basin (Central Himalaya) ' , Remote Sensing , vol. 14 , no. 8 , 1927 . https://doi.org/10.3390/rs14081927 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3390/rs14081927 |
container_title |
Remote Sensing |
container_volume |
14 |
container_issue |
8 |
container_start_page |
1927 |
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1766166514759630848 |