Overall recession and mass budget of Gangotri Glacier, Garhwal Himalayas, from 1965 to 2015 using remote sensing data
Thinning rates for the debris-covered Gangotri Glacier and its tributary glaciers during the period 1968-2014, length variation and area vacated at the snout from 1965 to 2015, and seasonal variation of ice-surface velocity for the last two decades have been investigated in this study. It was found...
Published in: | Journal of Glaciology |
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Language: | English |
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2016
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Online Access: | https://research-portal.st-andrews.ac.uk/en/researchoutput/overall-recession-and-mass-budget-of-gangotri-glacier-garhwal-himalayas-from-1965-to-2015-using-remote-sensing-data(b16879c7-201e-4fce-909d-30bd278186a2).html https://doi.org/10.1017/jog.2016.96 https://research-repository.st-andrews.ac.uk/bitstream/10023/17279/1/Bolch_2017_JoG_OverallRecession_CCBY_VoR.pdf |
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ftunstandrewcris:oai:research-portal.st-andrews.ac.uk:publications/b16879c7-201e-4fce-909d-30bd278186a2 2024-06-23T07:54:16+00:00 Overall recession and mass budget of Gangotri Glacier, Garhwal Himalayas, from 1965 to 2015 using remote sensing data Bhattacharya, Atanu Bolch, Tobias Mukherjee, Kriti Pieczonka, Tino Kropacek, Jan Buchroithner, Manfred F. 2016-12 application/pdf https://research-portal.st-andrews.ac.uk/en/researchoutput/overall-recession-and-mass-budget-of-gangotri-glacier-garhwal-himalayas-from-1965-to-2015-using-remote-sensing-data(b16879c7-201e-4fce-909d-30bd278186a2).html https://doi.org/10.1017/jog.2016.96 https://research-repository.st-andrews.ac.uk/bitstream/10023/17279/1/Bolch_2017_JoG_OverallRecession_CCBY_VoR.pdf eng eng https://research-portal.st-andrews.ac.uk/en/researchoutput/overall-recession-and-mass-budget-of-gangotri-glacier-garhwal-himalayas-from-1965-to-2015-using-remote-sensing-data(b16879c7-201e-4fce-909d-30bd278186a2).html info:eu-repo/semantics/openAccess Bhattacharya , A , Bolch , T , Mukherjee , K , Pieczonka , T , Kropacek , J & Buchroithner , M F 2016 , ' Overall recession and mass budget of Gangotri Glacier, Garhwal Himalayas, from 1965 to 2015 using remote sensing data ' , Journal of Glaciology , vol. 62 , no. 236 , pp. 1115-1133 . https://doi.org/10.1017/jog.2016.96 , https://doi.org/10.1017/jog.2016.96 Corona and hexagon data Glacier mass balance Glacier retreat Glacier surface velocity article 2016 ftunstandrewcris https://doi.org/10.1017/jog.2016.96 2024-06-13T01:05:10Z Thinning rates for the debris-covered Gangotri Glacier and its tributary glaciers during the period 1968-2014, length variation and area vacated at the snout from 1965 to 2015, and seasonal variation of ice-surface velocity for the last two decades have been investigated in this study. It was found that the mass loss of Gangotri and its tributary glaciers was slightly less than those reported for other debris-covered glaciers in the Himalayan regions. The average velocity during 2006-14 decreased by ~6.7% as compared with that during 1993-2006. The debris-covered area of the main trunk of Gangotri Glacier increased significantly from 1965 until 2015 with the maximum rate of increase (0.8 ± 0.2 km 2 a -1 ) during 2006-15. The retreat (~9.0 ± 3.5 m a -1 ) was less in recent years (2006-2015) but the down-wasting (0.34 ± 0.2 m a -1 ) in the same period (2006-2014) was higher than that (0.20 ± 0.1 m a -1 ) during 1968-2006. The study reinforced the established fact that the glacier length change is a delayed response to climate change and, in addition, is affected by debris cover, whereas glacier mass balance is a more direct and immediate response. Therefore, it is recommended to study the glacier mass balance and not only the glacier extent, to conclude about a glacier's response to climate change. Article in Journal/Newspaper Journal of Glaciology University of St Andrews: Research Portal Journal of Glaciology 62 236 1115 1133 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
Corona and hexagon data Glacier mass balance Glacier retreat Glacier surface velocity |
spellingShingle |
Corona and hexagon data Glacier mass balance Glacier retreat Glacier surface velocity Bhattacharya, Atanu Bolch, Tobias Mukherjee, Kriti Pieczonka, Tino Kropacek, Jan Buchroithner, Manfred F. Overall recession and mass budget of Gangotri Glacier, Garhwal Himalayas, from 1965 to 2015 using remote sensing data |
topic_facet |
Corona and hexagon data Glacier mass balance Glacier retreat Glacier surface velocity |
description |
Thinning rates for the debris-covered Gangotri Glacier and its tributary glaciers during the period 1968-2014, length variation and area vacated at the snout from 1965 to 2015, and seasonal variation of ice-surface velocity for the last two decades have been investigated in this study. It was found that the mass loss of Gangotri and its tributary glaciers was slightly less than those reported for other debris-covered glaciers in the Himalayan regions. The average velocity during 2006-14 decreased by ~6.7% as compared with that during 1993-2006. The debris-covered area of the main trunk of Gangotri Glacier increased significantly from 1965 until 2015 with the maximum rate of increase (0.8 ± 0.2 km 2 a -1 ) during 2006-15. The retreat (~9.0 ± 3.5 m a -1 ) was less in recent years (2006-2015) but the down-wasting (0.34 ± 0.2 m a -1 ) in the same period (2006-2014) was higher than that (0.20 ± 0.1 m a -1 ) during 1968-2006. The study reinforced the established fact that the glacier length change is a delayed response to climate change and, in addition, is affected by debris cover, whereas glacier mass balance is a more direct and immediate response. Therefore, it is recommended to study the glacier mass balance and not only the glacier extent, to conclude about a glacier's response to climate change. |
format |
Article in Journal/Newspaper |
author |
Bhattacharya, Atanu Bolch, Tobias Mukherjee, Kriti Pieczonka, Tino Kropacek, Jan Buchroithner, Manfred F. |
author_facet |
Bhattacharya, Atanu Bolch, Tobias Mukherjee, Kriti Pieczonka, Tino Kropacek, Jan Buchroithner, Manfred F. |
author_sort |
Bhattacharya, Atanu |
title |
Overall recession and mass budget of Gangotri Glacier, Garhwal Himalayas, from 1965 to 2015 using remote sensing data |
title_short |
Overall recession and mass budget of Gangotri Glacier, Garhwal Himalayas, from 1965 to 2015 using remote sensing data |
title_full |
Overall recession and mass budget of Gangotri Glacier, Garhwal Himalayas, from 1965 to 2015 using remote sensing data |
title_fullStr |
Overall recession and mass budget of Gangotri Glacier, Garhwal Himalayas, from 1965 to 2015 using remote sensing data |
title_full_unstemmed |
Overall recession and mass budget of Gangotri Glacier, Garhwal Himalayas, from 1965 to 2015 using remote sensing data |
title_sort |
overall recession and mass budget of gangotri glacier, garhwal himalayas, from 1965 to 2015 using remote sensing data |
publishDate |
2016 |
url |
https://research-portal.st-andrews.ac.uk/en/researchoutput/overall-recession-and-mass-budget-of-gangotri-glacier-garhwal-himalayas-from-1965-to-2015-using-remote-sensing-data(b16879c7-201e-4fce-909d-30bd278186a2).html https://doi.org/10.1017/jog.2016.96 https://research-repository.st-andrews.ac.uk/bitstream/10023/17279/1/Bolch_2017_JoG_OverallRecession_CCBY_VoR.pdf |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Bhattacharya , A , Bolch , T , Mukherjee , K , Pieczonka , T , Kropacek , J & Buchroithner , M F 2016 , ' Overall recession and mass budget of Gangotri Glacier, Garhwal Himalayas, from 1965 to 2015 using remote sensing data ' , Journal of Glaciology , vol. 62 , no. 236 , pp. 1115-1133 . https://doi.org/10.1017/jog.2016.96 , https://doi.org/10.1017/jog.2016.96 |
op_relation |
https://research-portal.st-andrews.ac.uk/en/researchoutput/overall-recession-and-mass-budget-of-gangotri-glacier-garhwal-himalayas-from-1965-to-2015-using-remote-sensing-data(b16879c7-201e-4fce-909d-30bd278186a2).html |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1017/jog.2016.96 |
container_title |
Journal of Glaciology |
container_volume |
62 |
container_issue |
236 |
container_start_page |
1115 |
op_container_end_page |
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