Glacier changes in the Garhwal Himalaya, India, from 1968 to 2006 based on remote sensing
Glacier outlines are mapped for the upper Bhagirathi and Saraswati/Alaknanda basins of the Garhwal Himalaya using Corona and Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) satellite images acquired in 1968 and 2006, respectively. A subset of glaciers was also mapped using Lan...
Published in: | Journal of Glaciology |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2011
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Online Access: | https://risweb.st-andrews.ac.uk/portal/en/researchoutput/glacier-changes-in-the-garhwal-himalaya-india-from-1968-to-2006-based-on-remote-sensing(2f1c0f8f-af10-4fb6-85e1-8902e00febe5).html https://doi.org/10.3189/002214311796905604 http://www.scopus.com/inward/record.url?scp=80051883309&partnerID=8YFLogxK |
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ftunstandrewcris:oai:risweb.st-andrews.ac.uk:publications/2f1c0f8f-af10-4fb6-85e1-8902e00febe5 2023-05-15T16:57:37+02:00 Glacier changes in the Garhwal Himalaya, India, from 1968 to 2006 based on remote sensing Bhambri, Rakesh Bolch, Tobias Chaujar, Ravinder Kumar Kulshreshtha, Subhash Chandra 2011-08-01 https://risweb.st-andrews.ac.uk/portal/en/researchoutput/glacier-changes-in-the-garhwal-himalaya-india-from-1968-to-2006-based-on-remote-sensing(2f1c0f8f-af10-4fb6-85e1-8902e00febe5).html https://doi.org/10.3189/002214311796905604 http://www.scopus.com/inward/record.url?scp=80051883309&partnerID=8YFLogxK eng eng info:eu-repo/semantics/restrictedAccess Bhambri , R , Bolch , T , Chaujar , R K & Kulshreshtha , S C 2011 , ' Glacier changes in the Garhwal Himalaya, India, from 1968 to 2006 based on remote sensing ' , Journal of Glaciology , vol. 57 , no. 203 , pp. 543-556 . https://doi.org/10.3189/002214311796905604 article 2011 ftunstandrewcris https://doi.org/10.3189/002214311796905604 2022-06-02T07:49:53Z Glacier outlines are mapped for the upper Bhagirathi and Saraswati/Alaknanda basins of the Garhwal Himalaya using Corona and Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) satellite images acquired in 1968 and 2006, respectively. A subset of glaciers was also mapped using Landsat TM images acquired in 1990. Glacier area decreased from 599.9±15.6 km 2 (1968) to 572.5±18.0 km 2 (2006), a loss of 4.6±2.8%. Glaciers in the Saraswati/Alaknanda basin and upper Bhagirathi basin lost 18.4±9.0 km 2 (5.7±2.7%) and 9.0±7.7 km 2 (3.3±2.8%), respectively, from 1968 to 2006. Garhwal Himalayan glacier retreat rates are lower than previously reported. More recently (1990-2006), recession rates have increased. The number of glaciers in the study region increased from 82 in 1968 to 88 in 2006 due to fragmentation of glaciers. Smaller glaciers (<1 km 2 ) lost 19.4±2.5% (0.51±0.07%a -1 ) of their ice, significantly more than for larger glaciers (>50 km2 ) which lost 2.8±2.7% (0.074±0.071%a -1 ). From 1968 to 2006, the debris-covered glacier area increased by 17.8±3.1%(0.46±0.08%a -1 ) in the Saraswati/Alaknanda basin and 11.8±3.0%(0.31±0.08%a -1 )in the upper Bhagirathi basin. Climate records from Mukhim (∼1900ma.s.l.) and Bhojbasa (∼3780ma.s.l.) meteorological stations were used to analyze climate conditions and trends, but the data are too limited to make firm conclusions regarding glacier-climate interactions. Article in Journal/Newspaper Journal of Glaciology University of St Andrews: Research Portal Saraswati ENVELOPE(11.732,11.732,-70.769,-70.769) Journal of Glaciology 57 203 543 556 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
description |
Glacier outlines are mapped for the upper Bhagirathi and Saraswati/Alaknanda basins of the Garhwal Himalaya using Corona and Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) satellite images acquired in 1968 and 2006, respectively. A subset of glaciers was also mapped using Landsat TM images acquired in 1990. Glacier area decreased from 599.9±15.6 km 2 (1968) to 572.5±18.0 km 2 (2006), a loss of 4.6±2.8%. Glaciers in the Saraswati/Alaknanda basin and upper Bhagirathi basin lost 18.4±9.0 km 2 (5.7±2.7%) and 9.0±7.7 km 2 (3.3±2.8%), respectively, from 1968 to 2006. Garhwal Himalayan glacier retreat rates are lower than previously reported. More recently (1990-2006), recession rates have increased. The number of glaciers in the study region increased from 82 in 1968 to 88 in 2006 due to fragmentation of glaciers. Smaller glaciers (<1 km 2 ) lost 19.4±2.5% (0.51±0.07%a -1 ) of their ice, significantly more than for larger glaciers (>50 km2 ) which lost 2.8±2.7% (0.074±0.071%a -1 ). From 1968 to 2006, the debris-covered glacier area increased by 17.8±3.1%(0.46±0.08%a -1 ) in the Saraswati/Alaknanda basin and 11.8±3.0%(0.31±0.08%a -1 )in the upper Bhagirathi basin. Climate records from Mukhim (∼1900ma.s.l.) and Bhojbasa (∼3780ma.s.l.) meteorological stations were used to analyze climate conditions and trends, but the data are too limited to make firm conclusions regarding glacier-climate interactions. |
format |
Article in Journal/Newspaper |
author |
Bhambri, Rakesh Bolch, Tobias Chaujar, Ravinder Kumar Kulshreshtha, Subhash Chandra |
spellingShingle |
Bhambri, Rakesh Bolch, Tobias Chaujar, Ravinder Kumar Kulshreshtha, Subhash Chandra Glacier changes in the Garhwal Himalaya, India, from 1968 to 2006 based on remote sensing |
author_facet |
Bhambri, Rakesh Bolch, Tobias Chaujar, Ravinder Kumar Kulshreshtha, Subhash Chandra |
author_sort |
Bhambri, Rakesh |
title |
Glacier changes in the Garhwal Himalaya, India, from 1968 to 2006 based on remote sensing |
title_short |
Glacier changes in the Garhwal Himalaya, India, from 1968 to 2006 based on remote sensing |
title_full |
Glacier changes in the Garhwal Himalaya, India, from 1968 to 2006 based on remote sensing |
title_fullStr |
Glacier changes in the Garhwal Himalaya, India, from 1968 to 2006 based on remote sensing |
title_full_unstemmed |
Glacier changes in the Garhwal Himalaya, India, from 1968 to 2006 based on remote sensing |
title_sort |
glacier changes in the garhwal himalaya, india, from 1968 to 2006 based on remote sensing |
publishDate |
2011 |
url |
https://risweb.st-andrews.ac.uk/portal/en/researchoutput/glacier-changes-in-the-garhwal-himalaya-india-from-1968-to-2006-based-on-remote-sensing(2f1c0f8f-af10-4fb6-85e1-8902e00febe5).html https://doi.org/10.3189/002214311796905604 http://www.scopus.com/inward/record.url?scp=80051883309&partnerID=8YFLogxK |
long_lat |
ENVELOPE(11.732,11.732,-70.769,-70.769) |
geographic |
Saraswati |
geographic_facet |
Saraswati |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Bhambri , R , Bolch , T , Chaujar , R K & Kulshreshtha , S C 2011 , ' Glacier changes in the Garhwal Himalaya, India, from 1968 to 2006 based on remote sensing ' , Journal of Glaciology , vol. 57 , no. 203 , pp. 543-556 . https://doi.org/10.3189/002214311796905604 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.3189/002214311796905604 |
container_title |
Journal of Glaciology |
container_volume |
57 |
container_issue |
203 |
container_start_page |
543 |
op_container_end_page |
556 |
_version_ |
1766049175622909952 |