Mass balance of Himalayan glaciers using AAR and ELA methods
Abstract The accumulation area ratio (AAR) for Himalayan glaciers representing zero mass balance is substantially lower than for North America and Europe. Regression analysis suggests 0.44 for the AAR representing zero mass balance in the western Himalaya. A good correlation was observed when this m...
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1992
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crcambridgeupr:10.1017/s0022143000009631 2024-09-15T18:15:38+00:00 Mass balance of Himalayan glaciers using AAR and ELA methods Kulkarni, Anil V. 1992 http://dx.doi.org/10.1017/s0022143000009631 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000009631 en eng Cambridge University Press (CUP) Journal of Glaciology volume 38, issue 128, page 101-104 ISSN 0022-1430 1727-5652 journal-article 1992 crcambridgeupr https://doi.org/10.1017/s0022143000009631 2024-07-31T04:03:56Z Abstract The accumulation area ratio (AAR) for Himalayan glaciers representing zero mass balance is substantially lower than for North America and Europe. Regression analysis suggests 0.44 for the AAR representing zero mass balance in the western Himalaya. A good correlation was observed when this method was applied to individual glaciers such as Gara and Gor-Garang in Himachal Pradesh, India. The correlation coefficients ( r ), using 6 and 7 years of data, respectively, were 0.88 and 0.96 for Gara and Gor-Garang Glaciers, respectively. However, when data from six western Himalayan glaciers were correlated, the correlation was 0.74. The AAR was also estimated by using Landsat images which can be useful in obtaining a trend in mass balance for a large number of Himalayan glaciers for which very little information exists. A higher correlation was observed between equilibrium-line altitude (ELA) and mass balance. The field data from Gara and Gor-Garang Glaciers shows a high correlation coefficient, i.e. −0.92 and −0.94, respectively. The ELA values obtained from the Landsat satellite images combined with topographic maps suggest positive mass balance for the year 1986–87 and negative for 1987–88. Article in Journal/Newspaper Journal of Glaciology Cambridge University Press Journal of Glaciology 38 128 101 104 |
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Cambridge University Press |
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English |
description |
Abstract The accumulation area ratio (AAR) for Himalayan glaciers representing zero mass balance is substantially lower than for North America and Europe. Regression analysis suggests 0.44 for the AAR representing zero mass balance in the western Himalaya. A good correlation was observed when this method was applied to individual glaciers such as Gara and Gor-Garang in Himachal Pradesh, India. The correlation coefficients ( r ), using 6 and 7 years of data, respectively, were 0.88 and 0.96 for Gara and Gor-Garang Glaciers, respectively. However, when data from six western Himalayan glaciers were correlated, the correlation was 0.74. The AAR was also estimated by using Landsat images which can be useful in obtaining a trend in mass balance for a large number of Himalayan glaciers for which very little information exists. A higher correlation was observed between equilibrium-line altitude (ELA) and mass balance. The field data from Gara and Gor-Garang Glaciers shows a high correlation coefficient, i.e. −0.92 and −0.94, respectively. The ELA values obtained from the Landsat satellite images combined with topographic maps suggest positive mass balance for the year 1986–87 and negative for 1987–88. |
format |
Article in Journal/Newspaper |
author |
Kulkarni, Anil V. |
spellingShingle |
Kulkarni, Anil V. Mass balance of Himalayan glaciers using AAR and ELA methods |
author_facet |
Kulkarni, Anil V. |
author_sort |
Kulkarni, Anil V. |
title |
Mass balance of Himalayan glaciers using AAR and ELA methods |
title_short |
Mass balance of Himalayan glaciers using AAR and ELA methods |
title_full |
Mass balance of Himalayan glaciers using AAR and ELA methods |
title_fullStr |
Mass balance of Himalayan glaciers using AAR and ELA methods |
title_full_unstemmed |
Mass balance of Himalayan glaciers using AAR and ELA methods |
title_sort |
mass balance of himalayan glaciers using aar and ela methods |
publisher |
Cambridge University Press (CUP) |
publishDate |
1992 |
url |
http://dx.doi.org/10.1017/s0022143000009631 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000009631 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology volume 38, issue 128, page 101-104 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000009631 |
container_title |
Journal of Glaciology |
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38 |
container_issue |
128 |
container_start_page |
101 |
op_container_end_page |
104 |
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1810453528731189248 |