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...
Published in: | The Cryosphere |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2012
|
Subjects: | |
Online Access: | https://doi.org/10.5194/tc-6-301-2012 http://www.the-cryosphere.net/6/301/2012/tc-6-301-2012.pdf https://doaj.org/article/f63436566a9b4603822b66e9650e8d87 |
id |
fttriple:oai:gotriple.eu:oai:doaj.org/article:f63436566a9b4603822b66e9650e8d87 |
---|---|
record_format |
openpolar |
spelling |
fttriple:oai:gotriple.eu:oai:doaj.org/article:f63436566a9b4603822b66e9650e8d87 2023-05-15T18:32:23+02:00 Relative effect of slope and equilibrium line altitude on the retreat of Himalayan glaciers T. N. Venkatesh A. V. Kulkarni J. Srinivasan 2012-03-01 https://doi.org/10.5194/tc-6-301-2012 http://www.the-cryosphere.net/6/301/2012/tc-6-301-2012.pdf https://doaj.org/article/f63436566a9b4603822b66e9650e8d87 en eng Copernicus Publications doi:10.5194/tc-6-301-2012 1994-0416 1994-0424 http://www.the-cryosphere.net/6/301/2012/tc-6-301-2012.pdf https://doaj.org/article/f63436566a9b4603822b66e9650e8d87 undefined The Cryosphere, Vol 6, Iss 2, Pp 301-311 (2012) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2012 fttriple https://doi.org/10.5194/tc-6-301-2012 2023-01-22T19:12:40Z 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 Unknown The Cryosphere 6 2 301 311 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
geo envir |
spellingShingle |
geo envir T. N. Venkatesh A. V. Kulkarni J. Srinivasan Relative effect of slope and equilibrium line altitude on the retreat of Himalayan glaciers |
topic_facet |
geo envir |
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 |
T. N. Venkatesh A. V. Kulkarni J. Srinivasan |
author_facet |
T. N. Venkatesh A. V. Kulkarni J. Srinivasan |
author_sort |
T. N. Venkatesh |
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 Publications |
publishDate |
2012 |
url |
https://doi.org/10.5194/tc-6-301-2012 http://www.the-cryosphere.net/6/301/2012/tc-6-301-2012.pdf https://doaj.org/article/f63436566a9b4603822b66e9650e8d87 |
genre |
The Cryosphere |
genre_facet |
The Cryosphere |
op_source |
The Cryosphere, Vol 6, Iss 2, Pp 301-311 (2012) |
op_relation |
doi:10.5194/tc-6-301-2012 1994-0416 1994-0424 http://www.the-cryosphere.net/6/301/2012/tc-6-301-2012.pdf https://doaj.org/article/f63436566a9b4603822b66e9650e8d87 |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/tc-6-301-2012 |
container_title |
The Cryosphere |
container_volume |
6 |
container_issue |
2 |
container_start_page |
301 |
op_container_end_page |
311 |
_version_ |
1766216483587751936 |