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...
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ftdoajarticles:oai:doaj.org/article:a3111bc2d27d4c53a5d9bb0a6113c350 2023-05-15T16:57:32+02:00 Overall recession and mass budget of Gangotri Glacier, Garhwal Himalayas, from 1965 to 2015 using remote sensing data ATANU BHATTACHARYA TOBIAS BOLCH KRITI MUKHERJEE TINO PIECZONKA JAN KROPÁČEK MANFRED F. BUCHROITHNER 2016-12-01T00:00:00Z https://doi.org/10.1017/jog.2016.96 https://doaj.org/article/a3111bc2d27d4c53a5d9bb0a6113c350 EN eng Cambridge University Press https://www.cambridge.org/core/product/identifier/S0022143016000964/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2016.96 0022-1430 1727-5652 https://doaj.org/article/a3111bc2d27d4c53a5d9bb0a6113c350 Journal of Glaciology, Vol 62, Pp 1115-1133 (2016) corona and hexagon data glacier mass balance glacier retreat glacier surface velocity Environmental sciences GE1-350 Meteorology. Climatology QC851-999 article 2016 ftdoajarticles https://doi.org/10.1017/jog.2016.96 2023-03-12T01:30:59Z 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 km2 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 Directory of Open Access Journals: DOAJ Articles Journal of Glaciology 62 236 1115 1133 |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
corona and hexagon data glacier mass balance glacier retreat glacier surface velocity Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
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corona and hexagon data glacier mass balance glacier retreat glacier surface velocity Environmental sciences GE1-350 Meteorology. Climatology QC851-999 ATANU BHATTACHARYA TOBIAS BOLCH KRITI MUKHERJEE TINO PIECZONKA JAN KROPÁČEK MANFRED F. BUCHROITHNER 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 Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
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 km2 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 |
ATANU BHATTACHARYA TOBIAS BOLCH KRITI MUKHERJEE TINO PIECZONKA JAN KROPÁČEK MANFRED F. BUCHROITHNER |
author_facet |
ATANU BHATTACHARYA TOBIAS BOLCH KRITI MUKHERJEE TINO PIECZONKA JAN KROPÁČEK MANFRED F. BUCHROITHNER |
author_sort |
ATANU BHATTACHARYA |
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 |
publisher |
Cambridge University Press |
publishDate |
2016 |
url |
https://doi.org/10.1017/jog.2016.96 https://doaj.org/article/a3111bc2d27d4c53a5d9bb0a6113c350 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology, Vol 62, Pp 1115-1133 (2016) |
op_relation |
https://www.cambridge.org/core/product/identifier/S0022143016000964/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2016.96 0022-1430 1727-5652 https://doaj.org/article/a3111bc2d27d4c53a5d9bb0a6113c350 |
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 |
1133 |
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1766049103410626560 |