Application of a general sliding law to simulating flow in a glacier cross-section
Abstract Observations at Athabasca Glacier and elsewhere suggest that basal sliding can account for a very significant part of total glacier motion, and that sliding rates vary significantly across a glacier section. The ability to model such spatial variations in basal velocities is important in un...
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Language: | English |
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Cambridge University Press (CUP)
1992
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Online Access: | http://dx.doi.org/10.1017/s0022143000009710 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000009710 |
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crcambridgeupr:10.1017/s0022143000009710 2024-09-15T18:15:38+00:00 Application of a general sliding law to simulating flow in a glacier cross-section Harbor, Jonathan M. 1992 http://dx.doi.org/10.1017/s0022143000009710 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000009710 en eng Cambridge University Press (CUP) Journal of Glaciology volume 38, issue 128, page 182-190 ISSN 0022-1430 1727-5652 journal-article 1992 crcambridgeupr https://doi.org/10.1017/s0022143000009710 2024-07-31T04:04:20Z Abstract Observations at Athabasca Glacier and elsewhere suggest that basal sliding can account for a very significant part of total glacier motion, and that sliding rates vary significantly across a glacier section. The ability to model such spatial variations in basal velocities is important in understanding flow in valley glaciers, as well as in predicting spatial patterns of glacial erosion that drive land-form development models. With a sliding law in which the basal velocity is dependent on the basal shear stress and inversely dependent on the effective pressure at the bed, it is possible to predict an overall flow pattern that is consistent with the empirical data, if it is assumed that friction increases close to the margin of a glacier. Article in Journal/Newspaper Journal of Glaciology Cambridge University Press Journal of Glaciology 38 128 182 190 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Abstract Observations at Athabasca Glacier and elsewhere suggest that basal sliding can account for a very significant part of total glacier motion, and that sliding rates vary significantly across a glacier section. The ability to model such spatial variations in basal velocities is important in understanding flow in valley glaciers, as well as in predicting spatial patterns of glacial erosion that drive land-form development models. With a sliding law in which the basal velocity is dependent on the basal shear stress and inversely dependent on the effective pressure at the bed, it is possible to predict an overall flow pattern that is consistent with the empirical data, if it is assumed that friction increases close to the margin of a glacier. |
format |
Article in Journal/Newspaper |
author |
Harbor, Jonathan M. |
spellingShingle |
Harbor, Jonathan M. Application of a general sliding law to simulating flow in a glacier cross-section |
author_facet |
Harbor, Jonathan M. |
author_sort |
Harbor, Jonathan M. |
title |
Application of a general sliding law to simulating flow in a glacier cross-section |
title_short |
Application of a general sliding law to simulating flow in a glacier cross-section |
title_full |
Application of a general sliding law to simulating flow in a glacier cross-section |
title_fullStr |
Application of a general sliding law to simulating flow in a glacier cross-section |
title_full_unstemmed |
Application of a general sliding law to simulating flow in a glacier cross-section |
title_sort |
application of a general sliding law to simulating flow in a glacier cross-section |
publisher |
Cambridge University Press (CUP) |
publishDate |
1992 |
url |
http://dx.doi.org/10.1017/s0022143000009710 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000009710 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology volume 38, issue 128, page 182-190 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000009710 |
container_title |
Journal of Glaciology |
container_volume |
38 |
container_issue |
128 |
container_start_page |
182 |
op_container_end_page |
190 |
_version_ |
1810453508275568640 |