Bottom Melting under George VI Ice Shelf, Antarctica
Abstract 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 ra...
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Language: | English |
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Cambridge University Press (CUP)
1981
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Online Access: | http://dx.doi.org/10.1017/s0022143000011461 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000011461 |
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crcambridgeupr:10.1017/s0022143000011461 2024-09-09T18:56:52+00:00 Bottom Melting under George VI Ice Shelf, Antarctica Bishop, J. F. Walton, J. L. W. 1981 http://dx.doi.org/10.1017/s0022143000011461 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000011461 en eng Cambridge University Press (CUP) Journal of Glaciology volume 27, issue 97, page 429-447 ISSN 0022-1430 1727-5652 journal-article 1981 crcambridgeupr https://doi.org/10.1017/s0022143000011461 2024-07-31T04:03:44Z Abstract 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 George VI Ice Shelf Ice Shelf Journal of Glaciology Palmer Land Cambridge University Press 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 |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
Abstract 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 |
Cambridge University Press (CUP) |
publishDate |
1981 |
url |
http://dx.doi.org/10.1017/s0022143000011461 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/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 George VI Ice Shelf Ice Shelf Journal of Glaciology Palmer Land |
genre_facet |
Alexander Island Antarc* Antarctica George VI Ice Shelf Ice Shelf Journal of Glaciology Palmer Land |
op_source |
Journal of Glaciology volume 27, issue 97, page 429-447 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000011461 |
container_title |
Journal of Glaciology |
container_volume |
27 |
container_issue |
97 |
container_start_page |
429 |
op_container_end_page |
447 |
_version_ |
1809820219926904832 |