The Theory of Glacier Sliding
Abstract The theory of the sliding of glaciers presented by the author in earlier papers has been generalized (1) by taking into account the resistance to sliding offered by obstacles both smaller and larger than the controlling obstacles and (2) by relaxing the assumption that ice is always in inti...
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Cambridge University Press (CUP)
1964
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Online Access: | http://dx.doi.org/10.1017/s0022143000029038 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000029038 |
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crcambridgeupr:10.1017/s0022143000029038 2024-09-15T18:15:39+00:00 The Theory of Glacier Sliding Weertman, J. 1964 http://dx.doi.org/10.1017/s0022143000029038 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000029038 en eng Cambridge University Press (CUP) Journal of Glaciology volume 5, issue 39, page 287-303 ISSN 0022-1430 1727-5652 journal-article 1964 crcambridgeupr https://doi.org/10.1017/s0022143000029038 2024-08-28T04:03:02Z Abstract The theory of the sliding of glaciers presented by the author in earlier papers has been generalized (1) by taking into account the resistance to sliding offered by obstacles both smaller and larger than the controlling obstacles and (2) by relaxing the assumption that ice is always in intimate contact with the bed at the down-stream side of an obstacle. The sliding velocities and controlling obstacle sizes which are found from the generalized theory are approximately the same as those found from the earlier theory. A new result obtained from the present theory is that a water layer an order of magnitude smaller in thickness than the height of the controlling obstacles can cause an appreciable increase in the sliding velocity. The generalized theory contains Lliboutry’s sliding theory as an extreme limiting case. For certain thicknesses of a glacier the sliding velocity is a double-valued function of the shear stress exerted at the bed. Article in Journal/Newspaper Journal of Glaciology Cambridge University Press Journal of Glaciology 5 39 287 303 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Abstract The theory of the sliding of glaciers presented by the author in earlier papers has been generalized (1) by taking into account the resistance to sliding offered by obstacles both smaller and larger than the controlling obstacles and (2) by relaxing the assumption that ice is always in intimate contact with the bed at the down-stream side of an obstacle. The sliding velocities and controlling obstacle sizes which are found from the generalized theory are approximately the same as those found from the earlier theory. A new result obtained from the present theory is that a water layer an order of magnitude smaller in thickness than the height of the controlling obstacles can cause an appreciable increase in the sliding velocity. The generalized theory contains Lliboutry’s sliding theory as an extreme limiting case. For certain thicknesses of a glacier the sliding velocity is a double-valued function of the shear stress exerted at the bed. |
format |
Article in Journal/Newspaper |
author |
Weertman, J. |
spellingShingle |
Weertman, J. The Theory of Glacier Sliding |
author_facet |
Weertman, J. |
author_sort |
Weertman, J. |
title |
The Theory of Glacier Sliding |
title_short |
The Theory of Glacier Sliding |
title_full |
The Theory of Glacier Sliding |
title_fullStr |
The Theory of Glacier Sliding |
title_full_unstemmed |
The Theory of Glacier Sliding |
title_sort |
theory of glacier sliding |
publisher |
Cambridge University Press (CUP) |
publishDate |
1964 |
url |
http://dx.doi.org/10.1017/s0022143000029038 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000029038 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology volume 5, issue 39, page 287-303 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000029038 |
container_title |
Journal of Glaciology |
container_volume |
5 |
container_issue |
39 |
container_start_page |
287 |
op_container_end_page |
303 |
_version_ |
1810453573408915456 |