A rapidly retreating, marine-terminating glacier's modeled response to perturbations in basal traction
Upernavik Isstrøm, a marine glacier undergoing rapid retreat, is simulated by forcing a numerical model with ocean-driven melt. A review of processes driving retreat led us to hypothesize that a glacier undergoing rapid retreat may be less sensitive to perturbations in the balance of forces than a g...
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Language: | English |
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Cambridge University Press
2022
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Online Access: | https://doi.org/10.1017/jog.2022.5 https://doaj.org/article/07b26d0dd7464b2c8b1f62273de5401f |
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ftdoajarticles:oai:doaj.org/article:07b26d0dd7464b2c8b1f62273de5401f 2023-05-15T16:40:50+02:00 A rapidly retreating, marine-terminating glacier's modeled response to perturbations in basal traction Jacob Downs Jesse V. Johnson 2022-10-01T00:00:00Z https://doi.org/10.1017/jog.2022.5 https://doaj.org/article/07b26d0dd7464b2c8b1f62273de5401f EN eng Cambridge University Press https://www.cambridge.org/core/product/identifier/S0022143022000053/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2022.5 0022-1430 1727-5652 https://doaj.org/article/07b26d0dd7464b2c8b1f62273de5401f Journal of Glaciology, Vol 68, Pp 891-900 (2022) Calving glacier flow glacier modeling ice-sheet modeling Environmental sciences GE1-350 Meteorology. Climatology QC851-999 article 2022 ftdoajarticles https://doi.org/10.1017/jog.2022.5 2023-03-12T01:30:54Z Upernavik Isstrøm, a marine glacier undergoing rapid retreat, is simulated by forcing a numerical model with ocean-driven melt. A review of processes driving retreat led us to hypothesize that a glacier undergoing rapid retreat may be less sensitive to perturbations in the balance of forces than a glacier that is undergoing moderate changes or a glacier in steady state. Numerical experiments suggest this is not the case, and that a system in rapid retreat is as sensitive to basal traction perturbations as a system that is near to steady state. This result is important when considering other glacier systems experiencing marine-forced retreat. While the ice–ocean interface is of primary importance, additional perturbations from meltwater-forced decoupling of the glacier from its bed continue to feature in glacier dynamics. Article in Journal/Newspaper Ice Sheet Journal of Glaciology Upernavik Directory of Open Access Journals: DOAJ Articles Upernavik Isstrøm ENVELOPE(-54.500,-54.500,72.917,72.917) Marine Glacier ENVELOPE(-78.746,-78.746,82.286,82.286) Journal of Glaciology 1 10 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Calving glacier flow glacier modeling ice-sheet modeling Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
spellingShingle |
Calving glacier flow glacier modeling ice-sheet modeling Environmental sciences GE1-350 Meteorology. Climatology QC851-999 Jacob Downs Jesse V. Johnson A rapidly retreating, marine-terminating glacier's modeled response to perturbations in basal traction |
topic_facet |
Calving glacier flow glacier modeling ice-sheet modeling Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
description |
Upernavik Isstrøm, a marine glacier undergoing rapid retreat, is simulated by forcing a numerical model with ocean-driven melt. A review of processes driving retreat led us to hypothesize that a glacier undergoing rapid retreat may be less sensitive to perturbations in the balance of forces than a glacier that is undergoing moderate changes or a glacier in steady state. Numerical experiments suggest this is not the case, and that a system in rapid retreat is as sensitive to basal traction perturbations as a system that is near to steady state. This result is important when considering other glacier systems experiencing marine-forced retreat. While the ice–ocean interface is of primary importance, additional perturbations from meltwater-forced decoupling of the glacier from its bed continue to feature in glacier dynamics. |
format |
Article in Journal/Newspaper |
author |
Jacob Downs Jesse V. Johnson |
author_facet |
Jacob Downs Jesse V. Johnson |
author_sort |
Jacob Downs |
title |
A rapidly retreating, marine-terminating glacier's modeled response to perturbations in basal traction |
title_short |
A rapidly retreating, marine-terminating glacier's modeled response to perturbations in basal traction |
title_full |
A rapidly retreating, marine-terminating glacier's modeled response to perturbations in basal traction |
title_fullStr |
A rapidly retreating, marine-terminating glacier's modeled response to perturbations in basal traction |
title_full_unstemmed |
A rapidly retreating, marine-terminating glacier's modeled response to perturbations in basal traction |
title_sort |
rapidly retreating, marine-terminating glacier's modeled response to perturbations in basal traction |
publisher |
Cambridge University Press |
publishDate |
2022 |
url |
https://doi.org/10.1017/jog.2022.5 https://doaj.org/article/07b26d0dd7464b2c8b1f62273de5401f |
long_lat |
ENVELOPE(-54.500,-54.500,72.917,72.917) ENVELOPE(-78.746,-78.746,82.286,82.286) |
geographic |
Upernavik Isstrøm Marine Glacier |
geographic_facet |
Upernavik Isstrøm Marine Glacier |
genre |
Ice Sheet Journal of Glaciology Upernavik |
genre_facet |
Ice Sheet Journal of Glaciology Upernavik |
op_source |
Journal of Glaciology, Vol 68, Pp 891-900 (2022) |
op_relation |
https://www.cambridge.org/core/product/identifier/S0022143022000053/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2022.5 0022-1430 1727-5652 https://doaj.org/article/07b26d0dd7464b2c8b1f62273de5401f |
op_doi |
https://doi.org/10.1017/jog.2022.5 |
container_title |
Journal of Glaciology |
container_start_page |
1 |
op_container_end_page |
10 |
_version_ |
1766031262973165568 |