Decay of the Greenland Ice Sheet due to surface-meltwater-induced acceleration of basal sliding
Simulations of the Greenland Ice Sheet are carried out with a high-resolution version of the ice-sheet model SICOPOLIS for several global-warming scenarios for the period 1990-2350. In particular, the impact of surface-meltwater-induced acceleration of basal sliding on the stability of the ice sheet...
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ftdatacite:10.48550/arxiv.0905.2027 2023-05-15T16:26:31+02:00 Decay of the Greenland Ice Sheet due to surface-meltwater-induced acceleration of basal sliding Greve, Ralf Sugiyama, Shin 2009 https://dx.doi.org/10.48550/arxiv.0905.2027 https://arxiv.org/abs/0905.2027 unknown arXiv arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ Geophysics physics.geo-ph FOS Physical sciences Preprint Article article CreativeWork 2009 ftdatacite https://doi.org/10.48550/arxiv.0905.2027 2022-04-01T15:05:49Z Simulations of the Greenland Ice Sheet are carried out with a high-resolution version of the ice-sheet model SICOPOLIS for several global-warming scenarios for the period 1990-2350. In particular, the impact of surface-meltwater-induced acceleration of basal sliding on the stability of the ice sheet is investigated. A parameterization for the acceleration effect is developed for which modelled and measured mass losses of the ice sheet in the early 21st century agree well. The main findings of the simulations are: (i) the ice sheet is generally very susceptible to global warming on time-scales of centuries, (ii) surface-meltwater-induced acceleration of basal sliding leads to a pronounced speed-up of ice streams and outlet glaciers, and (iii) this ice-dynamical effect accelerates the decay of the Greenland Ice Sheet as a whole significantly, but not catastrophically, in the 21st century and beyond. : 9 pages, 3 figures, 1 table Report Greenland Ice Sheet DataCite Metadata Store (German National Library of Science and Technology) Greenland |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Geophysics physics.geo-ph FOS Physical sciences |
spellingShingle |
Geophysics physics.geo-ph FOS Physical sciences Greve, Ralf Sugiyama, Shin Decay of the Greenland Ice Sheet due to surface-meltwater-induced acceleration of basal sliding |
topic_facet |
Geophysics physics.geo-ph FOS Physical sciences |
description |
Simulations of the Greenland Ice Sheet are carried out with a high-resolution version of the ice-sheet model SICOPOLIS for several global-warming scenarios for the period 1990-2350. In particular, the impact of surface-meltwater-induced acceleration of basal sliding on the stability of the ice sheet is investigated. A parameterization for the acceleration effect is developed for which modelled and measured mass losses of the ice sheet in the early 21st century agree well. The main findings of the simulations are: (i) the ice sheet is generally very susceptible to global warming on time-scales of centuries, (ii) surface-meltwater-induced acceleration of basal sliding leads to a pronounced speed-up of ice streams and outlet glaciers, and (iii) this ice-dynamical effect accelerates the decay of the Greenland Ice Sheet as a whole significantly, but not catastrophically, in the 21st century and beyond. : 9 pages, 3 figures, 1 table |
format |
Report |
author |
Greve, Ralf Sugiyama, Shin |
author_facet |
Greve, Ralf Sugiyama, Shin |
author_sort |
Greve, Ralf |
title |
Decay of the Greenland Ice Sheet due to surface-meltwater-induced acceleration of basal sliding |
title_short |
Decay of the Greenland Ice Sheet due to surface-meltwater-induced acceleration of basal sliding |
title_full |
Decay of the Greenland Ice Sheet due to surface-meltwater-induced acceleration of basal sliding |
title_fullStr |
Decay of the Greenland Ice Sheet due to surface-meltwater-induced acceleration of basal sliding |
title_full_unstemmed |
Decay of the Greenland Ice Sheet due to surface-meltwater-induced acceleration of basal sliding |
title_sort |
decay of the greenland ice sheet due to surface-meltwater-induced acceleration of basal sliding |
publisher |
arXiv |
publishDate |
2009 |
url |
https://dx.doi.org/10.48550/arxiv.0905.2027 https://arxiv.org/abs/0905.2027 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_rights |
arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
op_doi |
https://doi.org/10.48550/arxiv.0905.2027 |
_version_ |
1766015437593640960 |