Gravity Measurements on the Athabaska Glacier, Alberta, Canada
Abstract The thickness of the Athabaska Glacier has been obtained along eight transverse profiles by an investigation of gravity anomalies. Three-dimensional computations with a low-speed digital computer were made in this study to acquire more precise results than previously obtained. The thickness...
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Language: | English |
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Cambridge University Press (CUP)
1963
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Online Access: | http://dx.doi.org/10.1017/s0022143000028136 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000028136 |
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crcambridgeupr:10.1017/s0022143000028136 2024-03-03T08:46:06+00:00 Gravity Measurements on the Athabaska Glacier, Alberta, Canada Kanasewich, E. R. 1963 http://dx.doi.org/10.1017/s0022143000028136 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000028136 en eng Cambridge University Press (CUP) Journal of Glaciology volume 4, issue 35, page 617-631 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 1963 crcambridgeupr https://doi.org/10.1017/s0022143000028136 2024-02-08T08:36:15Z Abstract The thickness of the Athabaska Glacier has been obtained along eight transverse profiles by an investigation of gravity anomalies. Three-dimensional computations with a low-speed digital computer were made in this study to acquire more precise results than previously obtained. The thickness of the glacier varies front 326 m. on a line below the lower ice fall to 49 m. near the terminus. The accuracy of the results is discussed and compared with independent data from bore holes and a seismic program. The cross-section of the glacier valley was found to approximate a parabola on several lines. From a knowledge of the thickness. shape and surface slope of the glacier, the average shear stress exerted by the bed on the ice was found to be 1.0 bar. Article in Journal/Newspaper Journal of Glaciology Cambridge University Press Canada Journal of Glaciology 4 35 617 631 |
institution |
Open Polar |
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Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes Kanasewich, E. R. Gravity Measurements on the Athabaska Glacier, Alberta, Canada |
topic_facet |
Earth-Surface Processes |
description |
Abstract The thickness of the Athabaska Glacier has been obtained along eight transverse profiles by an investigation of gravity anomalies. Three-dimensional computations with a low-speed digital computer were made in this study to acquire more precise results than previously obtained. The thickness of the glacier varies front 326 m. on a line below the lower ice fall to 49 m. near the terminus. The accuracy of the results is discussed and compared with independent data from bore holes and a seismic program. The cross-section of the glacier valley was found to approximate a parabola on several lines. From a knowledge of the thickness. shape and surface slope of the glacier, the average shear stress exerted by the bed on the ice was found to be 1.0 bar. |
format |
Article in Journal/Newspaper |
author |
Kanasewich, E. R. |
author_facet |
Kanasewich, E. R. |
author_sort |
Kanasewich, E. R. |
title |
Gravity Measurements on the Athabaska Glacier, Alberta, Canada |
title_short |
Gravity Measurements on the Athabaska Glacier, Alberta, Canada |
title_full |
Gravity Measurements on the Athabaska Glacier, Alberta, Canada |
title_fullStr |
Gravity Measurements on the Athabaska Glacier, Alberta, Canada |
title_full_unstemmed |
Gravity Measurements on the Athabaska Glacier, Alberta, Canada |
title_sort |
gravity measurements on the athabaska glacier, alberta, canada |
publisher |
Cambridge University Press (CUP) |
publishDate |
1963 |
url |
http://dx.doi.org/10.1017/s0022143000028136 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000028136 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology volume 4, issue 35, page 617-631 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000028136 |
container_title |
Journal of Glaciology |
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4 |
container_issue |
35 |
container_start_page |
617 |
op_container_end_page |
631 |
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1792501992183037952 |