The role of lateral drag in the dynamics of Ice Stream B, Antarctica

Abstract The partitioning of resistive force between the bed and sides of Ice Stream B, Antarctica, is obtained for three large areas that have been measured using repeat aerial photogrammetry. Problems associated with data errors and local variations in ice strength and velocity are reduced by cons...

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Published in:Journal of Glaciology
Main Authors: Whillans, I. M., van der Veen, C. J.
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press (CUP) 1997
Subjects:
Online Access:http://dx.doi.org/10.1017/s0022143000003178
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000003178
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spelling crcambridgeupr:10.1017/s0022143000003178 2024-09-15T17:48:07+00:00 The role of lateral drag in the dynamics of Ice Stream B, Antarctica Whillans, I. M. van der Veen, C. J. 1997 http://dx.doi.org/10.1017/s0022143000003178 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000003178 en eng Cambridge University Press (CUP) Journal of Glaciology volume 43, issue 144, page 231-237 ISSN 0022-1430 1727-5652 journal-article 1997 crcambridgeupr https://doi.org/10.1017/s0022143000003178 2024-07-24T04:04:01Z Abstract The partitioning of resistive force between the bed and sides of Ice Stream B, Antarctica, is obtained for three large areas that have been measured using repeat aerial photogrammetry. Problems associated with data errors and local variations in ice strength and velocity are reduced by considering the areally averaged budget of forces for each photo block. Results indicate that the bed under Ice Stream B must be very weak and unable to provide much resistance. Mechanical control on this ice stream emanates almost entirely from the lateral margins. Article in Journal/Newspaper Antarc* Antarctica Ice Stream B Journal of Glaciology Cambridge University Press Journal of Glaciology 43 144 231 237
institution Open Polar
collection Cambridge University Press
op_collection_id crcambridgeupr
language English
description Abstract The partitioning of resistive force between the bed and sides of Ice Stream B, Antarctica, is obtained for three large areas that have been measured using repeat aerial photogrammetry. Problems associated with data errors and local variations in ice strength and velocity are reduced by considering the areally averaged budget of forces for each photo block. Results indicate that the bed under Ice Stream B must be very weak and unable to provide much resistance. Mechanical control on this ice stream emanates almost entirely from the lateral margins.
format Article in Journal/Newspaper
author Whillans, I. M.
van der Veen, C. J.
spellingShingle Whillans, I. M.
van der Veen, C. J.
The role of lateral drag in the dynamics of Ice Stream B, Antarctica
author_facet Whillans, I. M.
van der Veen, C. J.
author_sort Whillans, I. M.
title The role of lateral drag in the dynamics of Ice Stream B, Antarctica
title_short The role of lateral drag in the dynamics of Ice Stream B, Antarctica
title_full The role of lateral drag in the dynamics of Ice Stream B, Antarctica
title_fullStr The role of lateral drag in the dynamics of Ice Stream B, Antarctica
title_full_unstemmed The role of lateral drag in the dynamics of Ice Stream B, Antarctica
title_sort role of lateral drag in the dynamics of ice stream b, antarctica
publisher Cambridge University Press (CUP)
publishDate 1997
url http://dx.doi.org/10.1017/s0022143000003178
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000003178
genre Antarc*
Antarctica
Ice Stream B
Journal of Glaciology
genre_facet Antarc*
Antarctica
Ice Stream B
Journal of Glaciology
op_source Journal of Glaciology
volume 43, issue 144, page 231-237
ISSN 0022-1430 1727-5652
op_doi https://doi.org/10.1017/s0022143000003178
container_title Journal of Glaciology
container_volume 43
container_issue 144
container_start_page 231
op_container_end_page 237
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