A topological approach to the strain-rate pattern of ice sheets

Abstract The pattern of horizontal strain rate in an ice sheet is discussed from a topological point of view. In a circularly symmetric ice sheet, the isotropic point for strain rate at its centre is degenerate and structurally unstable. On perturbation the degenerate point splits into two elementar...

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Bibliographic Details
Published in:Journal of Glaciology
Main Author: Nye, J. F.
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press (CUP) 1993
Subjects:
Earth-Surface Processes
Ice Sheet
Journal of Glaciology
Online Access:http://dx.doi.org/10.1017/s0022143000015677
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000015677
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spelling crcambridgeupr:10.1017/s0022143000015677 2024-03-03T08:45:24+00:00 A topological approach to the strain-rate pattern of ice sheets Nye, J. F. 1993 http://dx.doi.org/10.1017/s0022143000015677 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000015677 en eng Cambridge University Press (CUP) Journal of Glaciology volume 39, issue 131, page 10-14 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 1993 crcambridgeupr https://doi.org/10.1017/s0022143000015677 2024-02-08T08:38:15Z Abstract The pattern of horizontal strain rate in an ice sheet is discussed from a topological point of view. In a circularly symmetric ice sheet, the isotropic point for strain rate at its centre is degenerate and structurally unstable. On perturbation the degenerate point splits into two elementary isotropic points, each of which has the lemon pattern for the trajectories of principal strain rate. Contour maps of principal strain-rate values are presented which show the details of the splitting. Article in Journal/Newspaper Ice Sheet Journal of Glaciology Cambridge University Press Journal of Glaciology 39 131 10 14
institution Open Polar
collection Cambridge University Press
op_collection_id crcambridgeupr
language English
topic Earth-Surface Processes
spellingShingle Earth-Surface Processes
Nye, J. F.
A topological approach to the strain-rate pattern of ice sheets
topic_facet Earth-Surface Processes
description Abstract The pattern of horizontal strain rate in an ice sheet is discussed from a topological point of view. In a circularly symmetric ice sheet, the isotropic point for strain rate at its centre is degenerate and structurally unstable. On perturbation the degenerate point splits into two elementary isotropic points, each of which has the lemon pattern for the trajectories of principal strain rate. Contour maps of principal strain-rate values are presented which show the details of the splitting.
format Article in Journal/Newspaper
author Nye, J. F.
author_facet Nye, J. F.
author_sort Nye, J. F.
title A topological approach to the strain-rate pattern of ice sheets
title_short A topological approach to the strain-rate pattern of ice sheets
title_full A topological approach to the strain-rate pattern of ice sheets
title_fullStr A topological approach to the strain-rate pattern of ice sheets
title_full_unstemmed A topological approach to the strain-rate pattern of ice sheets
title_sort topological approach to the strain-rate pattern of ice sheets
publisher Cambridge University Press (CUP)
publishDate 1993
url http://dx.doi.org/10.1017/s0022143000015677
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000015677
genre Ice Sheet
Journal of Glaciology
genre_facet Ice Sheet
Journal of Glaciology
op_source Journal of Glaciology
volume 39, issue 131, page 10-14
ISSN 0022-1430 1727-5652
op_doi https://doi.org/10.1017/s0022143000015677
container_title Journal of Glaciology
container_volume 39
container_issue 131
container_start_page 10
op_container_end_page 14
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