Chemical composition of snow and ice from Chhota Shigri glacier, central Himalaya
A systematic study of the chemical composition of snow, firn from a shallow core, surface ice and of meltwater samples collected from the Chhota Shigri glacier, Central Himalaya, is reported here. The average concentrations of Na and Cl in snow are 402 and 753 µgl -1 , respectively; whereas those in...
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ftindianacasci:oai:repository.ias.ac.in:52634 2023-05-15T16:39:11+02:00 Chemical composition of snow and ice from Chhota Shigri glacier, central Himalaya Nijampurkar, V. N. Sarin, M. M. Rao, D. K. 1993-10-15 http://repository.ias.ac.in/52634/ http://www.sciencedirect.com/science/article/pii/0022169493902466 unknown Elsevier Science Nijampurkar, V. N. Sarin, M. M. Rao, D. K. (1993) Chemical composition of snow and ice from Chhota Shigri glacier, central Himalaya Journal of Hydrology, 151 (1). pp. 19-34. ISSN 0022-1694 QE Geology Article PeerReviewed 1993 ftindianacasci 2013-01-20T11:52:23Z A systematic study of the chemical composition of snow, firn from a shallow core, surface ice and of meltwater samples collected from the Chhota Shigri glacier, Central Himalaya, is reported here. The average concentrations of Na and Cl in snow are 402 and 753 µgl -1 , respectively; whereas those in old surface ice are relatively low, 185 µg l -1 and 375 µg l -1 , respectively. The average Cl/Na weight ratio in these samples is ≈1.9, quite similar to that in the sea salts suggesting that both Cl and Na are predominantly of marine origin. The concentrations of other major ions such as K, Mg, Ca, NO 3 and SO 4 in snow and ice samples are generally less than 1 mg l -1 . The major ion concentrations, when normalized to Na, indicate that the abundances of K and Ca are dominated by terrestrial sources whereas Mg appears to have both marine and terrestrial sources. Based on the seasonal variations of Na and Cl concentrations observed in the ice core samples, an approximate accumulation rate at the core site has been estimated to be 1.6 m year -1 ) 640 kg m -2 year -1 ). Article in Journal/Newspaper ice core Indian Academy of Sciences: Publication of Fellows |
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Open Polar |
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Indian Academy of Sciences: Publication of Fellows |
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unknown |
topic |
QE Geology |
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QE Geology Nijampurkar, V. N. Sarin, M. M. Rao, D. K. Chemical composition of snow and ice from Chhota Shigri glacier, central Himalaya |
topic_facet |
QE Geology |
description |
A systematic study of the chemical composition of snow, firn from a shallow core, surface ice and of meltwater samples collected from the Chhota Shigri glacier, Central Himalaya, is reported here. The average concentrations of Na and Cl in snow are 402 and 753 µgl -1 , respectively; whereas those in old surface ice are relatively low, 185 µg l -1 and 375 µg l -1 , respectively. The average Cl/Na weight ratio in these samples is ≈1.9, quite similar to that in the sea salts suggesting that both Cl and Na are predominantly of marine origin. The concentrations of other major ions such as K, Mg, Ca, NO 3 and SO 4 in snow and ice samples are generally less than 1 mg l -1 . The major ion concentrations, when normalized to Na, indicate that the abundances of K and Ca are dominated by terrestrial sources whereas Mg appears to have both marine and terrestrial sources. Based on the seasonal variations of Na and Cl concentrations observed in the ice core samples, an approximate accumulation rate at the core site has been estimated to be 1.6 m year -1 ) 640 kg m -2 year -1 ). |
format |
Article in Journal/Newspaper |
author |
Nijampurkar, V. N. Sarin, M. M. Rao, D. K. |
author_facet |
Nijampurkar, V. N. Sarin, M. M. Rao, D. K. |
author_sort |
Nijampurkar, V. N. |
title |
Chemical composition of snow and ice from Chhota Shigri glacier, central Himalaya |
title_short |
Chemical composition of snow and ice from Chhota Shigri glacier, central Himalaya |
title_full |
Chemical composition of snow and ice from Chhota Shigri glacier, central Himalaya |
title_fullStr |
Chemical composition of snow and ice from Chhota Shigri glacier, central Himalaya |
title_full_unstemmed |
Chemical composition of snow and ice from Chhota Shigri glacier, central Himalaya |
title_sort |
chemical composition of snow and ice from chhota shigri glacier, central himalaya |
publisher |
Elsevier Science |
publishDate |
1993 |
url |
http://repository.ias.ac.in/52634/ http://www.sciencedirect.com/science/article/pii/0022169493902466 |
genre |
ice core |
genre_facet |
ice core |
op_relation |
Nijampurkar, V. N. Sarin, M. M. Rao, D. K. (1993) Chemical composition of snow and ice from Chhota Shigri glacier, central Himalaya Journal of Hydrology, 151 (1). pp. 19-34. ISSN 0022-1694 |
_version_ |
1766029509892505600 |