Analogue modelling of the influence of ice shelf collapse on the flow of ice sheets grounded below sea-level
In this work we use analogue modelling to analyse the effect of sudden ice shelf breakup on the flow of ice draining an ice sheet grounded below sea level. Experimental results confirm that the removal of the buttressing effect exerted by the ice shelf results in significant acceleration of inland g...
Published in: | Annals of Geophysics |
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2018
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Online Access: | http://hdl.handle.net/2122/12447 https://doi.org/10.4401/ag-7356 |
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ftingv:oai:www.earth-prints.org:2122/12447 2023-05-15T16:40:00+02:00 Analogue modelling of the influence of ice shelf collapse on the flow of ice sheets grounded below sea-level Corti, Giacomo Zeoli, Antonio Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia #PLACEHOLDER_PARENT_METADATA_VALUE# 2018 http://hdl.handle.net/2122/12447 https://doi.org/10.4401/ag-7356 en eng Annals of Geophysics /61(2018) http://hdl.handle.net/2122/12447 doi:10.4401/ag-7356 open article 2018 ftingv https://doi.org/10.4401/ag-7356 2022-07-29T06:07:44Z In this work we use analogue modelling to analyse the effect of sudden ice shelf breakup on the flow of ice draining an ice sheet grounded below sea level. Experimental results confirm that the removal of the buttressing effect exerted by the ice shelf results in significant acceleration of inland glaciers: the models show indeed a pronounced increase in ice velocity close to the grounding line. However, this effect does not significantly propagate upstream towards the internal portions of the ice sheet and rapidly decays with time. Therefore, the ice sheet is almost unaffected by flow perturbations induced by the disintegration of the ice shelf. Published OC332 4A. Oceanografia e clima 5A. Ricerche polari e paleoclima JCR Journal Article in Journal/Newspaper Ice Sheet Ice Shelf Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) Annals of Geophysics 61 3 |
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Open Polar |
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Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) |
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ftingv |
language |
English |
description |
In this work we use analogue modelling to analyse the effect of sudden ice shelf breakup on the flow of ice draining an ice sheet grounded below sea level. Experimental results confirm that the removal of the buttressing effect exerted by the ice shelf results in significant acceleration of inland glaciers: the models show indeed a pronounced increase in ice velocity close to the grounding line. However, this effect does not significantly propagate upstream towards the internal portions of the ice sheet and rapidly decays with time. Therefore, the ice sheet is almost unaffected by flow perturbations induced by the disintegration of the ice shelf. Published OC332 4A. Oceanografia e clima 5A. Ricerche polari e paleoclima JCR Journal |
author2 |
Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia #PLACEHOLDER_PARENT_METADATA_VALUE# |
format |
Article in Journal/Newspaper |
author |
Corti, Giacomo Zeoli, Antonio |
spellingShingle |
Corti, Giacomo Zeoli, Antonio Analogue modelling of the influence of ice shelf collapse on the flow of ice sheets grounded below sea-level |
author_facet |
Corti, Giacomo Zeoli, Antonio |
author_sort |
Corti, Giacomo |
title |
Analogue modelling of the influence of ice shelf collapse on the flow of ice sheets grounded below sea-level |
title_short |
Analogue modelling of the influence of ice shelf collapse on the flow of ice sheets grounded below sea-level |
title_full |
Analogue modelling of the influence of ice shelf collapse on the flow of ice sheets grounded below sea-level |
title_fullStr |
Analogue modelling of the influence of ice shelf collapse on the flow of ice sheets grounded below sea-level |
title_full_unstemmed |
Analogue modelling of the influence of ice shelf collapse on the flow of ice sheets grounded below sea-level |
title_sort |
analogue modelling of the influence of ice shelf collapse on the flow of ice sheets grounded below sea-level |
publishDate |
2018 |
url |
http://hdl.handle.net/2122/12447 https://doi.org/10.4401/ag-7356 |
genre |
Ice Sheet Ice Shelf |
genre_facet |
Ice Sheet Ice Shelf |
op_relation |
Annals of Geophysics /61(2018) http://hdl.handle.net/2122/12447 doi:10.4401/ag-7356 |
op_rights |
open |
op_doi |
https://doi.org/10.4401/ag-7356 |
container_title |
Annals of Geophysics |
container_volume |
61 |
container_issue |
3 |
_version_ |
1766030355200999424 |