Equilibrium Profile of Ice Caps
Abstract Nye’s theory of the equilibrium profile of two-dimensional ice caps is modified to include longitudinal stress and creep rate effects. A more generalized law for the sliding velocity of a glacier over its bed is introduced into the analysis in order to permit the inclusion of these addition...
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Language: | English |
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Cambridge University Press (CUP)
1961
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Online Access: | http://dx.doi.org/10.1017/s0022143000017366 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000017366 |
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crcambridgeupr:10.1017/s0022143000017366 2024-03-03T08:38:17+00:00 Equilibrium Profile of Ice Caps Weertman, J. 1961 http://dx.doi.org/10.1017/s0022143000017366 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000017366 en eng Cambridge University Press (CUP) Journal of Glaciology volume 3, issue 30, page 953-964 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 1961 crcambridgeupr https://doi.org/10.1017/s0022143000017366 2024-02-08T08:37:11Z Abstract Nye’s theory of the equilibrium profile of two-dimensional ice caps is modified to include longitudinal stress and creep rate effects. A more generalized law for the sliding velocity of a glacier over its bed is introduced into the analysis in order to permit the inclusion of these additional complications. It is found that in the case of small ice caps (of the order of 30 km. in width), it is important to include the longitudinal stress. A somewhat “flatter” profile than that calculated by Nye is obtained. For ice sheets of the dimensions of the Greenland or Antarctic Ice Sheets, the additional stress causes essentially no modification in Nye’s theory. Nye’s theory also has been extended to include an isostatic sinking under the weight of the ice of the bedrock below an ice cap. Article in Journal/Newspaper Antarc* Antarctic glacier Greenland Ice cap Journal of Glaciology Cambridge University Press Antarctic Greenland Journal of Glaciology 3 30 953 964 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes Weertman, J. Equilibrium Profile of Ice Caps |
topic_facet |
Earth-Surface Processes |
description |
Abstract Nye’s theory of the equilibrium profile of two-dimensional ice caps is modified to include longitudinal stress and creep rate effects. A more generalized law for the sliding velocity of a glacier over its bed is introduced into the analysis in order to permit the inclusion of these additional complications. It is found that in the case of small ice caps (of the order of 30 km. in width), it is important to include the longitudinal stress. A somewhat “flatter” profile than that calculated by Nye is obtained. For ice sheets of the dimensions of the Greenland or Antarctic Ice Sheets, the additional stress causes essentially no modification in Nye’s theory. Nye’s theory also has been extended to include an isostatic sinking under the weight of the ice of the bedrock below an ice cap. |
format |
Article in Journal/Newspaper |
author |
Weertman, J. |
author_facet |
Weertman, J. |
author_sort |
Weertman, J. |
title |
Equilibrium Profile of Ice Caps |
title_short |
Equilibrium Profile of Ice Caps |
title_full |
Equilibrium Profile of Ice Caps |
title_fullStr |
Equilibrium Profile of Ice Caps |
title_full_unstemmed |
Equilibrium Profile of Ice Caps |
title_sort |
equilibrium profile of ice caps |
publisher |
Cambridge University Press (CUP) |
publishDate |
1961 |
url |
http://dx.doi.org/10.1017/s0022143000017366 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000017366 |
geographic |
Antarctic Greenland |
geographic_facet |
Antarctic Greenland |
genre |
Antarc* Antarctic glacier Greenland Ice cap Journal of Glaciology |
genre_facet |
Antarc* Antarctic glacier Greenland Ice cap Journal of Glaciology |
op_source |
Journal of Glaciology volume 3, issue 30, page 953-964 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000017366 |
container_title |
Journal of Glaciology |
container_volume |
3 |
container_issue |
30 |
container_start_page |
953 |
op_container_end_page |
964 |
_version_ |
1792506178528346112 |