Dynamics of the Siple Coast ice streams, West Antarctica: results from a thermomechanical ice sheet model
Most of the ice leaving the Antarctic Ice Sheet is discharged to the sea by ice streams. An understanding of the dynamics of these ice streams is therefore crucial if we are to predict the future evolution of the ice sheet and its effect on global sea level. The behavior of Ice Streams A to E of the...
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ftubristolcris:oai:research-information.bris.ac.uk:publications/715d4f64-38b1-4b1c-991e-1d10cb4792bd 2024-02-11T09:56:59+01:00 Dynamics of the Siple Coast ice streams, West Antarctica: results from a thermomechanical ice sheet model Payne, AJ 1998-08-15 https://hdl.handle.net/1983/715d4f64-38b1-4b1c-991e-1d10cb4792bd https://research-information.bris.ac.uk/en/publications/715d4f64-38b1-4b1c-991e-1d10cb4792bd eng eng info:eu-repo/semantics/restrictedAccess Payne , AJ 1998 , ' Dynamics of the Siple Coast ice streams, West Antarctica: results from a thermomechanical ice sheet model ' , Geophysical Research Letters , vol. 25 , no. 16 , pp. 3173-3176 . FLOW article 1998 ftubristolcris 2024-01-18T23:29:47Z Most of the ice leaving the Antarctic Ice Sheet is discharged to the sea by ice streams. An understanding of the dynamics of these ice streams is therefore crucial if we are to predict the future evolution of the ice sheet and its effect on global sea level. The behavior of Ice Streams A to E of the Siple Coast, West Antarctica has attracted much attention with evidence of recent stagnation and numerous relict ice-flow features. Here I present results from a three-dimensional, thermodynamic ice sheet model of the West Antarctic Ice Sheet (WAIS). The model generates variability in the flow of the Siple Coast ice streams reminiscent of that mentioned above. This is caused by competition between several preferred ice flow pathways in the area. Individual ice streams interact through changes in catchment-area size: a reduction in catchment area reduces the flow of ice entering a stream and can cause stagnation through the associated reduction in deformational heating. Article in Journal/Newspaper Antarc* Antarctic Antarctica Ice Sheet West Antarctica University of Bristol: Bristol Research Antarctic Siple ENVELOPE(-83.917,-83.917,-75.917,-75.917) Siple Coast ENVELOPE(-155.000,-155.000,-82.000,-82.000) The Antarctic West Antarctic Ice Sheet West Antarctica |
institution |
Open Polar |
collection |
University of Bristol: Bristol Research |
op_collection_id |
ftubristolcris |
language |
English |
topic |
FLOW |
spellingShingle |
FLOW Payne, AJ Dynamics of the Siple Coast ice streams, West Antarctica: results from a thermomechanical ice sheet model |
topic_facet |
FLOW |
description |
Most of the ice leaving the Antarctic Ice Sheet is discharged to the sea by ice streams. An understanding of the dynamics of these ice streams is therefore crucial if we are to predict the future evolution of the ice sheet and its effect on global sea level. The behavior of Ice Streams A to E of the Siple Coast, West Antarctica has attracted much attention with evidence of recent stagnation and numerous relict ice-flow features. Here I present results from a three-dimensional, thermodynamic ice sheet model of the West Antarctic Ice Sheet (WAIS). The model generates variability in the flow of the Siple Coast ice streams reminiscent of that mentioned above. This is caused by competition between several preferred ice flow pathways in the area. Individual ice streams interact through changes in catchment-area size: a reduction in catchment area reduces the flow of ice entering a stream and can cause stagnation through the associated reduction in deformational heating. |
format |
Article in Journal/Newspaper |
author |
Payne, AJ |
author_facet |
Payne, AJ |
author_sort |
Payne, AJ |
title |
Dynamics of the Siple Coast ice streams, West Antarctica: results from a thermomechanical ice sheet model |
title_short |
Dynamics of the Siple Coast ice streams, West Antarctica: results from a thermomechanical ice sheet model |
title_full |
Dynamics of the Siple Coast ice streams, West Antarctica: results from a thermomechanical ice sheet model |
title_fullStr |
Dynamics of the Siple Coast ice streams, West Antarctica: results from a thermomechanical ice sheet model |
title_full_unstemmed |
Dynamics of the Siple Coast ice streams, West Antarctica: results from a thermomechanical ice sheet model |
title_sort |
dynamics of the siple coast ice streams, west antarctica: results from a thermomechanical ice sheet model |
publishDate |
1998 |
url |
https://hdl.handle.net/1983/715d4f64-38b1-4b1c-991e-1d10cb4792bd https://research-information.bris.ac.uk/en/publications/715d4f64-38b1-4b1c-991e-1d10cb4792bd |
long_lat |
ENVELOPE(-83.917,-83.917,-75.917,-75.917) ENVELOPE(-155.000,-155.000,-82.000,-82.000) |
geographic |
Antarctic Siple Siple Coast The Antarctic West Antarctic Ice Sheet West Antarctica |
geographic_facet |
Antarctic Siple Siple Coast The Antarctic West Antarctic Ice Sheet West Antarctica |
genre |
Antarc* Antarctic Antarctica Ice Sheet West Antarctica |
genre_facet |
Antarc* Antarctic Antarctica Ice Sheet West Antarctica |
op_source |
Payne , AJ 1998 , ' Dynamics of the Siple Coast ice streams, West Antarctica: results from a thermomechanical ice sheet model ' , Geophysical Research Letters , vol. 25 , no. 16 , pp. 3173-3176 . |
op_rights |
info:eu-repo/semantics/restrictedAccess |
_version_ |
1790607592066646016 |