Bottom melting under George VI Ice Shelf, Antarctica
Bottom melting rates have been calculated for a large number of sites on George VI Ice Shelf from measurements of its kinematic behaviour. No simple explanation for the melt-rate pattern was found in terms of ice-shelf parameters, assuming steady-state conditions. Values of apparent melt rates varie...
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International Glaciological Society
1981
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Online Access: | http://nora.nerc.ac.uk/id/eprint/524562/ https://doi.org/10.3189/S0022143000011461 |
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ftnerc:oai:nora.nerc.ac.uk:524562 2023-05-15T13:15:17+02:00 Bottom melting under George VI Ice Shelf, Antarctica Bishop, J.F. Walton, J.L.W. 1981 http://nora.nerc.ac.uk/id/eprint/524562/ https://doi.org/10.3189/S0022143000011461 unknown International Glaciological Society Bishop, J.F.; Walton, J.L.W. 1981 Bottom melting under George VI Ice Shelf, Antarctica. Journal of Glaciology, 27 (97). 429-447. https://doi.org/10.3189/S0022143000011461 <https://doi.org/10.3189/S0022143000011461> Publication - Article PeerReviewed 1981 ftnerc https://doi.org/10.3189/S0022143000011461 2023-02-04T19:48:57Z Bottom melting rates have been calculated for a large number of sites on George VI Ice Shelf from measurements of its kinematic behaviour. No simple explanation for the melt-rate pattern was found in terms of ice-shelf parameters, assuming steady-state conditions. Values of apparent melt rates varied from 1 to 8 m a−1 of ice. Along different flow lines the melt rate would sometimes increase with distance from the grounding line and sometimes the melt rate would decrease with distance. Large melt rates were found both where ice flowed off Palmer Land and where the ice shelf butted against Alexander Island. Although oceanographic conditions probably control bottom melting rates the complex pattern with large spatial variation seems to indicate that some areas of ice shelf are changing in thickness. Article in Journal/Newspaper Alexander Island Antarc* Antarctica Antarctica Journal George VI Ice Shelf Ice Shelf Journal of Glaciology Palmer Land Natural Environment Research Council: NERC Open Research Archive Alexander Island ENVELOPE(-69.895,-69.895,-71.287,-71.287) Palmer Land ENVELOPE(-65.000,-65.000,-71.500,-71.500) George VI Ice Shelf ENVELOPE(-67.840,-67.840,-71.692,-71.692) Journal of Glaciology 27 97 429 447 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
description |
Bottom melting rates have been calculated for a large number of sites on George VI Ice Shelf from measurements of its kinematic behaviour. No simple explanation for the melt-rate pattern was found in terms of ice-shelf parameters, assuming steady-state conditions. Values of apparent melt rates varied from 1 to 8 m a−1 of ice. Along different flow lines the melt rate would sometimes increase with distance from the grounding line and sometimes the melt rate would decrease with distance. Large melt rates were found both where ice flowed off Palmer Land and where the ice shelf butted against Alexander Island. Although oceanographic conditions probably control bottom melting rates the complex pattern with large spatial variation seems to indicate that some areas of ice shelf are changing in thickness. |
format |
Article in Journal/Newspaper |
author |
Bishop, J.F. Walton, J.L.W. |
spellingShingle |
Bishop, J.F. Walton, J.L.W. Bottom melting under George VI Ice Shelf, Antarctica |
author_facet |
Bishop, J.F. Walton, J.L.W. |
author_sort |
Bishop, J.F. |
title |
Bottom melting under George VI Ice Shelf, Antarctica |
title_short |
Bottom melting under George VI Ice Shelf, Antarctica |
title_full |
Bottom melting under George VI Ice Shelf, Antarctica |
title_fullStr |
Bottom melting under George VI Ice Shelf, Antarctica |
title_full_unstemmed |
Bottom melting under George VI Ice Shelf, Antarctica |
title_sort |
bottom melting under george vi ice shelf, antarctica |
publisher |
International Glaciological Society |
publishDate |
1981 |
url |
http://nora.nerc.ac.uk/id/eprint/524562/ https://doi.org/10.3189/S0022143000011461 |
long_lat |
ENVELOPE(-69.895,-69.895,-71.287,-71.287) ENVELOPE(-65.000,-65.000,-71.500,-71.500) ENVELOPE(-67.840,-67.840,-71.692,-71.692) |
geographic |
Alexander Island Palmer Land George VI Ice Shelf |
geographic_facet |
Alexander Island Palmer Land George VI Ice Shelf |
genre |
Alexander Island Antarc* Antarctica Antarctica Journal George VI Ice Shelf Ice Shelf Journal of Glaciology Palmer Land |
genre_facet |
Alexander Island Antarc* Antarctica Antarctica Journal George VI Ice Shelf Ice Shelf Journal of Glaciology Palmer Land |
op_relation |
Bishop, J.F.; Walton, J.L.W. 1981 Bottom melting under George VI Ice Shelf, Antarctica. Journal of Glaciology, 27 (97). 429-447. https://doi.org/10.3189/S0022143000011461 <https://doi.org/10.3189/S0022143000011461> |
op_doi |
https://doi.org/10.3189/S0022143000011461 |
container_title |
Journal of Glaciology |
container_volume |
27 |
container_issue |
97 |
container_start_page |
429 |
op_container_end_page |
447 |
_version_ |
1766267904038273024 |