Area and mass changes of Siachen Glacier (East Karakoram)
ABSTRACT Here, we present a comprehensive assessment of Siachen Glacier (East Karakoram), in terms of its area and elevation change, velocity variations and mass budget, utilizing different satellite datasets including Landsat, Hexagon, Cartosat-I, Shuttle Radar Topography Mission, Envisat Advanced...
Published in: | Journal of Glaciology |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press (CUP)
2016
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1017/jog.2016.127 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143016001271 |
id |
crcambridgeupr:10.1017/jog.2016.127 |
---|---|
record_format |
openpolar |
spelling |
crcambridgeupr:10.1017/jog.2016.127 2024-06-23T07:54:15+00:00 Area and mass changes of Siachen Glacier (East Karakoram) AGARWAL, VIBHOR BOLCH, TOBIAS SYED, TAJDARUL H. PIECZONKA, TINO STROZZI, TAZIO NAGAICH, RISHABH 2016 http://dx.doi.org/10.1017/jog.2016.127 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143016001271 en eng Cambridge University Press (CUP) http://creativecommons.org/licenses/by-nc-nd/4.0/ Journal of Glaciology volume 63, issue 237, page 148-163 ISSN 0022-1430 1727-5652 journal-article 2016 crcambridgeupr https://doi.org/10.1017/jog.2016.127 2024-06-12T04:04:31Z ABSTRACT Here, we present a comprehensive assessment of Siachen Glacier (East Karakoram), in terms of its area and elevation change, velocity variations and mass budget, utilizing different satellite datasets including Landsat, Hexagon, Cartosat-I, Shuttle Radar Topography Mission, Envisat Advanced Synthetic Aperture Radar and Japanese Advanced Land Observing Satellite Phased Array-type L-band SAR. The total areal extent of Siachen Glacier did not change significantly between 1980 and 2014; however the exposed-ice area decreased during that period. The terminus of the glacier has experienced substantial downwasting (on average 30 m) over the period of 1999–2007, followed by a retreat of the transition between exposed and debris-covered ice by a distance of 1.3 km during the short span 2007–14. The spatial patterns of the elevation difference and velocity are heterogeneous over the large areal extent of Siachen Glacier. The average velocity of the entire glacier, as computed between 11 December 2008 and 26 January 2009, was 12.3 ± 0.4 cm d −1 , while those estimated separately for the accumulation and ablation regions were 9.7 ± 0.4 cm d −1 and 20.4 ± 0.4 cm d −1 , respectively. The mass budget of Siachen Glacier is estimated to be –0.03 ± 0.21 m w.e. a −1 for the period of 1999–2007. Article in Journal/Newspaper Journal of Glaciology Cambridge University Press Journal of Glaciology 63 237 148 163 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
ABSTRACT Here, we present a comprehensive assessment of Siachen Glacier (East Karakoram), in terms of its area and elevation change, velocity variations and mass budget, utilizing different satellite datasets including Landsat, Hexagon, Cartosat-I, Shuttle Radar Topography Mission, Envisat Advanced Synthetic Aperture Radar and Japanese Advanced Land Observing Satellite Phased Array-type L-band SAR. The total areal extent of Siachen Glacier did not change significantly between 1980 and 2014; however the exposed-ice area decreased during that period. The terminus of the glacier has experienced substantial downwasting (on average 30 m) over the period of 1999–2007, followed by a retreat of the transition between exposed and debris-covered ice by a distance of 1.3 km during the short span 2007–14. The spatial patterns of the elevation difference and velocity are heterogeneous over the large areal extent of Siachen Glacier. The average velocity of the entire glacier, as computed between 11 December 2008 and 26 January 2009, was 12.3 ± 0.4 cm d −1 , while those estimated separately for the accumulation and ablation regions were 9.7 ± 0.4 cm d −1 and 20.4 ± 0.4 cm d −1 , respectively. The mass budget of Siachen Glacier is estimated to be –0.03 ± 0.21 m w.e. a −1 for the period of 1999–2007. |
format |
Article in Journal/Newspaper |
author |
AGARWAL, VIBHOR BOLCH, TOBIAS SYED, TAJDARUL H. PIECZONKA, TINO STROZZI, TAZIO NAGAICH, RISHABH |
spellingShingle |
AGARWAL, VIBHOR BOLCH, TOBIAS SYED, TAJDARUL H. PIECZONKA, TINO STROZZI, TAZIO NAGAICH, RISHABH Area and mass changes of Siachen Glacier (East Karakoram) |
author_facet |
AGARWAL, VIBHOR BOLCH, TOBIAS SYED, TAJDARUL H. PIECZONKA, TINO STROZZI, TAZIO NAGAICH, RISHABH |
author_sort |
AGARWAL, VIBHOR |
title |
Area and mass changes of Siachen Glacier (East Karakoram) |
title_short |
Area and mass changes of Siachen Glacier (East Karakoram) |
title_full |
Area and mass changes of Siachen Glacier (East Karakoram) |
title_fullStr |
Area and mass changes of Siachen Glacier (East Karakoram) |
title_full_unstemmed |
Area and mass changes of Siachen Glacier (East Karakoram) |
title_sort |
area and mass changes of siachen glacier (east karakoram) |
publisher |
Cambridge University Press (CUP) |
publishDate |
2016 |
url |
http://dx.doi.org/10.1017/jog.2016.127 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143016001271 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology volume 63, issue 237, page 148-163 ISSN 0022-1430 1727-5652 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_doi |
https://doi.org/10.1017/jog.2016.127 |
container_title |
Journal of Glaciology |
container_volume |
63 |
container_issue |
237 |
container_start_page |
148 |
op_container_end_page |
163 |
_version_ |
1802646360291278848 |