Modelling seasonal meltwater forcing of the velocity of land-terminating margins of the Greenland Ice Sheet ...
Surface runoff at the margin of the Greenland Ice Sheet (GrIS) drains to the ice-sheet bed, leading to enhanced summer ice flow. Ice velocities show a pattern of early summer acceleration followed by mid-summer deceleration due to evolution of the subglacial hydrology system in response to meltwater...
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ftdatacite:10.17863/cam.32770 2024-02-04T10:00:44+01:00 Modelling seasonal meltwater forcing of the velocity of land-terminating margins of the Greenland Ice Sheet ... Koziol, Conrad P Arnold, Neil 2018 https://dx.doi.org/10.17863/cam.32770 https://www.repository.cam.ac.uk/handle/1810/285407 en eng Copernicus Publications open.access Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 http://purl.org/coar/access_right/c_abf2 3707 Hydrology 3709 Physical Geography and Environmental Geoscience 37 Earth Sciences 3705 Geology 13 Climate Action Article ScholarlyArticle JournalArticle article-journal 2018 ftdatacite https://doi.org/10.17863/cam.32770 2024-01-05T13:41:45Z Surface runoff at the margin of the Greenland Ice Sheet (GrIS) drains to the ice-sheet bed, leading to enhanced summer ice flow. Ice velocities show a pattern of early summer acceleration followed by mid-summer deceleration due to evolution of the subglacial hydrology system in response to meltwater forcing. Modelling the integrated hydrological–ice dynamics system to reproduce measured velocities at the ice margin remains a key challenge for validating the present understanding of the system and constraining the impact of increasing surface runoff rates on dynamic ice mass loss from the GrIS. Here we show that a multi-component model incorporating supraglacial, subglacial, and ice dynamic components applied to a land-terminating catchment in western Greenland produces modelled velocities which are in reasonable agreement with those observed in GPS records for three melt seasons of varying melt intensities. This provides numerical support for the hypothesis that the subglacial system develops analogously to ... Article in Journal/Newspaper Greenland Ice Sheet DataCite Metadata Store (German National Library of Science and Technology) Greenland |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
3707 Hydrology 3709 Physical Geography and Environmental Geoscience 37 Earth Sciences 3705 Geology 13 Climate Action |
spellingShingle |
3707 Hydrology 3709 Physical Geography and Environmental Geoscience 37 Earth Sciences 3705 Geology 13 Climate Action Koziol, Conrad P Arnold, Neil Modelling seasonal meltwater forcing of the velocity of land-terminating margins of the Greenland Ice Sheet ... |
topic_facet |
3707 Hydrology 3709 Physical Geography and Environmental Geoscience 37 Earth Sciences 3705 Geology 13 Climate Action |
description |
Surface runoff at the margin of the Greenland Ice Sheet (GrIS) drains to the ice-sheet bed, leading to enhanced summer ice flow. Ice velocities show a pattern of early summer acceleration followed by mid-summer deceleration due to evolution of the subglacial hydrology system in response to meltwater forcing. Modelling the integrated hydrological–ice dynamics system to reproduce measured velocities at the ice margin remains a key challenge for validating the present understanding of the system and constraining the impact of increasing surface runoff rates on dynamic ice mass loss from the GrIS. Here we show that a multi-component model incorporating supraglacial, subglacial, and ice dynamic components applied to a land-terminating catchment in western Greenland produces modelled velocities which are in reasonable agreement with those observed in GPS records for three melt seasons of varying melt intensities. This provides numerical support for the hypothesis that the subglacial system develops analogously to ... |
format |
Article in Journal/Newspaper |
author |
Koziol, Conrad P Arnold, Neil |
author_facet |
Koziol, Conrad P Arnold, Neil |
author_sort |
Koziol, Conrad P |
title |
Modelling seasonal meltwater forcing of the velocity of land-terminating margins of the Greenland Ice Sheet ... |
title_short |
Modelling seasonal meltwater forcing of the velocity of land-terminating margins of the Greenland Ice Sheet ... |
title_full |
Modelling seasonal meltwater forcing of the velocity of land-terminating margins of the Greenland Ice Sheet ... |
title_fullStr |
Modelling seasonal meltwater forcing of the velocity of land-terminating margins of the Greenland Ice Sheet ... |
title_full_unstemmed |
Modelling seasonal meltwater forcing of the velocity of land-terminating margins of the Greenland Ice Sheet ... |
title_sort |
modelling seasonal meltwater forcing of the velocity of land-terminating margins of the greenland ice sheet ... |
publisher |
Copernicus Publications |
publishDate |
2018 |
url |
https://dx.doi.org/10.17863/cam.32770 https://www.repository.cam.ac.uk/handle/1810/285407 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_rights |
open.access Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 http://purl.org/coar/access_right/c_abf2 |
op_doi |
https://doi.org/10.17863/cam.32770 |
_version_ |
1789966173000957952 |