ICESHEET 1.0: a program to produce paleo-ice sheet reconstructions with minimal assumptions
We describe a program that produces paleo-ice sheet reconstructions using an assumption of steady-state, perfectly plastic ice flow behaviour. It incorporates three input parameters: ice margin, basal shear stress and basal topography. Though it is unlikely that paleo-ice sheets were ever in complet...
Published in: | Geoscientific Model Development |
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ftanucanberra:oai:openresearch-repository.anu.edu.au:1885/153524 2024-01-14T10:05:44+01:00 ICESHEET 1.0: a program to produce paleo-ice sheet reconstructions with minimal assumptions Gowan, Evan Tregoning, Paul Purcell, Anthony Lea, James Fransner, Oscar J. Noormets, Riko Dowdeswell, J.A. application/pdf http://hdl.handle.net/1885/153524 https://doi.org/10.5194/gmd-9-1673-2016 https://openresearch-repository.anu.edu.au/bitstream/1885/153524/5/01_Gowan_ICESHEET_1.0%253A_a_program_to_2016.pdf.jpg unknown Copernicus GmbH 1991-959X http://hdl.handle.net/1885/153524 doi:10.5194/gmd-9-1673-2016 https://openresearch-repository.anu.edu.au/bitstream/1885/153524/5/01_Gowan_ICESHEET_1.0%253A_a_program_to_2016.pdf.jpg Geoscientific Model Development Journal article ftanucanberra https://doi.org/10.5194/gmd-9-1673-2016 2023-12-15T09:37:10Z We describe a program that produces paleo-ice sheet reconstructions using an assumption of steady-state, perfectly plastic ice flow behaviour. It incorporates three input parameters: ice margin, basal shear stress and basal topography. Though it is unlikely that paleo-ice sheets were ever in complete steady-state conditions, this method can produce an ice sheet without relying on complicated and unconstrained parameters such as climate and ice dynamics. This makes it advantageous to use in glacial-isostatic adjustment ice sheet modelling, which are often used as input parameters in global climate modelling simulations. We test this program by applying it to the modern Greenland Ice Sheet and Last Glacial Maximum Barents Sea Ice Sheet and demonstrate the optimal parameters that balance computational time and accuracy. Article in Journal/Newspaper Barents Sea Greenland Ice Sheet Sea ice Australian National University: ANU Digital Collections Barents Sea Greenland Geoscientific Model Development 9 5 1673 1682 |
institution |
Open Polar |
collection |
Australian National University: ANU Digital Collections |
op_collection_id |
ftanucanberra |
language |
unknown |
description |
We describe a program that produces paleo-ice sheet reconstructions using an assumption of steady-state, perfectly plastic ice flow behaviour. It incorporates three input parameters: ice margin, basal shear stress and basal topography. Though it is unlikely that paleo-ice sheets were ever in complete steady-state conditions, this method can produce an ice sheet without relying on complicated and unconstrained parameters such as climate and ice dynamics. This makes it advantageous to use in glacial-isostatic adjustment ice sheet modelling, which are often used as input parameters in global climate modelling simulations. We test this program by applying it to the modern Greenland Ice Sheet and Last Glacial Maximum Barents Sea Ice Sheet and demonstrate the optimal parameters that balance computational time and accuracy. |
format |
Article in Journal/Newspaper |
author |
Gowan, Evan Tregoning, Paul Purcell, Anthony Lea, James Fransner, Oscar J. Noormets, Riko Dowdeswell, J.A. |
spellingShingle |
Gowan, Evan Tregoning, Paul Purcell, Anthony Lea, James Fransner, Oscar J. Noormets, Riko Dowdeswell, J.A. ICESHEET 1.0: a program to produce paleo-ice sheet reconstructions with minimal assumptions |
author_facet |
Gowan, Evan Tregoning, Paul Purcell, Anthony Lea, James Fransner, Oscar J. Noormets, Riko Dowdeswell, J.A. |
author_sort |
Gowan, Evan |
title |
ICESHEET 1.0: a program to produce paleo-ice sheet reconstructions with minimal assumptions |
title_short |
ICESHEET 1.0: a program to produce paleo-ice sheet reconstructions with minimal assumptions |
title_full |
ICESHEET 1.0: a program to produce paleo-ice sheet reconstructions with minimal assumptions |
title_fullStr |
ICESHEET 1.0: a program to produce paleo-ice sheet reconstructions with minimal assumptions |
title_full_unstemmed |
ICESHEET 1.0: a program to produce paleo-ice sheet reconstructions with minimal assumptions |
title_sort |
icesheet 1.0: a program to produce paleo-ice sheet reconstructions with minimal assumptions |
publisher |
Copernicus GmbH |
url |
http://hdl.handle.net/1885/153524 https://doi.org/10.5194/gmd-9-1673-2016 https://openresearch-repository.anu.edu.au/bitstream/1885/153524/5/01_Gowan_ICESHEET_1.0%253A_a_program_to_2016.pdf.jpg |
geographic |
Barents Sea Greenland |
geographic_facet |
Barents Sea Greenland |
genre |
Barents Sea Greenland Ice Sheet Sea ice |
genre_facet |
Barents Sea Greenland Ice Sheet Sea ice |
op_source |
Geoscientific Model Development |
op_relation |
1991-959X http://hdl.handle.net/1885/153524 doi:10.5194/gmd-9-1673-2016 https://openresearch-repository.anu.edu.au/bitstream/1885/153524/5/01_Gowan_ICESHEET_1.0%253A_a_program_to_2016.pdf.jpg |
op_doi |
https://doi.org/10.5194/gmd-9-1673-2016 |
container_title |
Geoscientific Model Development |
container_volume |
9 |
container_issue |
5 |
container_start_page |
1673 |
op_container_end_page |
1682 |
_version_ |
1788060073048670208 |