Relative effect of slope and equilibrium line altitude on the retreat of Himalayan glaciers
It has been observed that a majority of glaciers in the Himalayas have been retreating. In this paper, we show that there are two major factors which control the advance/retreat of the Himalayan glaciers. They are the slope of the glacier and changes in the equilibrium line altitude. While it is wel...
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ftindianacasci:oai:repository.ias.ac.in:95885 2023-05-15T18:32:24+02:00 Relative effect of slope and equilibrium line altitude on the retreat of Himalayan glaciers Venkatesh, T. N. Kulkarni, A. V. Srinivasan, J. 2012 application/pdf http://repository.ias.ac.in/95885/ http://repository.ias.ac.in/95885/1/relative_effect.pdf http://www.the-cryosphere.net/6/301/2012/tc-6-301-2012.html unknown Copernicus Group http://repository.ias.ac.in/95885/1/relative_effect.pdf Venkatesh, T. N. Kulkarni, A. V. Srinivasan, J. (2012) Relative effect of slope and equilibrium line altitude on the retreat of Himalayan glaciers The Cryosphere Discussions, 6 (2). pp. 301-311. ISSN 1994-0432 T Technology (General) Article PeerReviewed 2012 ftindianacasci 2013-01-20T13:50:46Z It has been observed that a majority of glaciers in the Himalayas have been retreating. In this paper, we show that there are two major factors which control the advance/retreat of the Himalayan glaciers. They are the slope of the glacier and changes in the equilibrium line altitude. While it is well known, that these factors are important, we propose a new way of combining them and use it to predict retreat. The functional form of this model has been derived from numerical simulations using an ice-flow code. The model has been successfully applied to the movement of eight Himalayan glaciers during the past 25 years. It explains why the Gangotri glacier is retreating while Zemu of nearly the same length is stationary, even if they are subject to similar environmental changes. The model has also been applied to a larger set of glaciers in the Parbati basin, for which retreat based on satellite data is available, though over a shorter time period. Article in Journal/Newspaper The Cryosphere The Cryosphere Discussions Indian Academy of Sciences: Publication of Fellows |
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Indian Academy of Sciences: Publication of Fellows |
op_collection_id |
ftindianacasci |
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unknown |
topic |
T Technology (General) |
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T Technology (General) Venkatesh, T. N. Kulkarni, A. V. Srinivasan, J. Relative effect of slope and equilibrium line altitude on the retreat of Himalayan glaciers |
topic_facet |
T Technology (General) |
description |
It has been observed that a majority of glaciers in the Himalayas have been retreating. In this paper, we show that there are two major factors which control the advance/retreat of the Himalayan glaciers. They are the slope of the glacier and changes in the equilibrium line altitude. While it is well known, that these factors are important, we propose a new way of combining them and use it to predict retreat. The functional form of this model has been derived from numerical simulations using an ice-flow code. The model has been successfully applied to the movement of eight Himalayan glaciers during the past 25 years. It explains why the Gangotri glacier is retreating while Zemu of nearly the same length is stationary, even if they are subject to similar environmental changes. The model has also been applied to a larger set of glaciers in the Parbati basin, for which retreat based on satellite data is available, though over a shorter time period. |
format |
Article in Journal/Newspaper |
author |
Venkatesh, T. N. Kulkarni, A. V. Srinivasan, J. |
author_facet |
Venkatesh, T. N. Kulkarni, A. V. Srinivasan, J. |
author_sort |
Venkatesh, T. N. |
title |
Relative effect of slope and equilibrium line altitude on the retreat of Himalayan glaciers |
title_short |
Relative effect of slope and equilibrium line altitude on the retreat of Himalayan glaciers |
title_full |
Relative effect of slope and equilibrium line altitude on the retreat of Himalayan glaciers |
title_fullStr |
Relative effect of slope and equilibrium line altitude on the retreat of Himalayan glaciers |
title_full_unstemmed |
Relative effect of slope and equilibrium line altitude on the retreat of Himalayan glaciers |
title_sort |
relative effect of slope and equilibrium line altitude on the retreat of himalayan glaciers |
publisher |
Copernicus Group |
publishDate |
2012 |
url |
http://repository.ias.ac.in/95885/ http://repository.ias.ac.in/95885/1/relative_effect.pdf http://www.the-cryosphere.net/6/301/2012/tc-6-301-2012.html |
genre |
The Cryosphere The Cryosphere Discussions |
genre_facet |
The Cryosphere The Cryosphere Discussions |
op_relation |
http://repository.ias.ac.in/95885/1/relative_effect.pdf Venkatesh, T. N. Kulkarni, A. V. Srinivasan, J. (2012) Relative effect of slope and equilibrium line altitude on the retreat of Himalayan glaciers The Cryosphere Discussions, 6 (2). pp. 301-311. ISSN 1994-0432 |
_version_ |
1766216514434760704 |