Recrystallisation and electrical behaviour of glacier ice
Electrical d.c. resistivity measurements made on the George VI Ice Shelf have established the polar nature of Antarctic ice despite saturation by melt-water from surface melt-lakes. Previously it has been suggested that different impurity concentrations are responsible for the extremes in resistivit...
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Online Access: | http://nora.nerc.ac.uk/id/eprint/525029/ https://doi.org/10.1038/283063a0 |
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ftnerc:oai:nora.nerc.ac.uk:525029 2023-05-15T13:41:44+02:00 Recrystallisation and electrical behaviour of glacier ice Reynolds, J.M. Paren, J.G. 1980 http://nora.nerc.ac.uk/id/eprint/525029/ https://doi.org/10.1038/283063a0 unknown Reynolds, J.M.; Paren, J.G. 1980 Recrystallisation and electrical behaviour of glacier ice. Nature, 283 (5742). 63-64. https://doi.org/10.1038/283063a0 <https://doi.org/10.1038/283063a0> Publication - Article PeerReviewed 1980 ftnerc https://doi.org/10.1038/283063a0 2023-02-04T19:49:11Z Electrical d.c. resistivity measurements made on the George VI Ice Shelf have established the polar nature of Antarctic ice despite saturation by melt-water from surface melt-lakes. Previously it has been suggested that different impurity concentrations are responsible for the extremes in resistivity (a factor of 1,000) between temperate ice (essentially at its pressure melting point) and polar ice (well below its pressure melting point). However, the evidence suggests that impurity levels are similar despite the leaching of contaminants by free water in temperate glaciers, a process which is absent in true polar glaciers. This implies that, although impurities can significantly alter the electrical behaviour of glacier ice, there is a more fundamental mechanism at work. We suggest that this process is one of recrystallisation. Article in Journal/Newspaper Antarc* Antarctic George VI Ice Shelf Ice Shelf Natural Environment Research Council: NERC Open Research Archive Antarctic George VI Ice Shelf ENVELOPE(-67.840,-67.840,-71.692,-71.692) Nature 283 5742 63 64 |
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Open Polar |
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Natural Environment Research Council: NERC Open Research Archive |
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ftnerc |
language |
unknown |
description |
Electrical d.c. resistivity measurements made on the George VI Ice Shelf have established the polar nature of Antarctic ice despite saturation by melt-water from surface melt-lakes. Previously it has been suggested that different impurity concentrations are responsible for the extremes in resistivity (a factor of 1,000) between temperate ice (essentially at its pressure melting point) and polar ice (well below its pressure melting point). However, the evidence suggests that impurity levels are similar despite the leaching of contaminants by free water in temperate glaciers, a process which is absent in true polar glaciers. This implies that, although impurities can significantly alter the electrical behaviour of glacier ice, there is a more fundamental mechanism at work. We suggest that this process is one of recrystallisation. |
format |
Article in Journal/Newspaper |
author |
Reynolds, J.M. Paren, J.G. |
spellingShingle |
Reynolds, J.M. Paren, J.G. Recrystallisation and electrical behaviour of glacier ice |
author_facet |
Reynolds, J.M. Paren, J.G. |
author_sort |
Reynolds, J.M. |
title |
Recrystallisation and electrical behaviour of glacier ice |
title_short |
Recrystallisation and electrical behaviour of glacier ice |
title_full |
Recrystallisation and electrical behaviour of glacier ice |
title_fullStr |
Recrystallisation and electrical behaviour of glacier ice |
title_full_unstemmed |
Recrystallisation and electrical behaviour of glacier ice |
title_sort |
recrystallisation and electrical behaviour of glacier ice |
publishDate |
1980 |
url |
http://nora.nerc.ac.uk/id/eprint/525029/ https://doi.org/10.1038/283063a0 |
long_lat |
ENVELOPE(-67.840,-67.840,-71.692,-71.692) |
geographic |
Antarctic George VI Ice Shelf |
geographic_facet |
Antarctic George VI Ice Shelf |
genre |
Antarc* Antarctic George VI Ice Shelf Ice Shelf |
genre_facet |
Antarc* Antarctic George VI Ice Shelf Ice Shelf |
op_relation |
Reynolds, J.M.; Paren, J.G. 1980 Recrystallisation and electrical behaviour of glacier ice. Nature, 283 (5742). 63-64. https://doi.org/10.1038/283063a0 <https://doi.org/10.1038/283063a0> |
op_doi |
https://doi.org/10.1038/283063a0 |
container_title |
Nature |
container_volume |
283 |
container_issue |
5742 |
container_start_page |
63 |
op_container_end_page |
64 |
_version_ |
1766155773688152064 |