The response of the Greenland ice sheet to climate changes in the 21st century by interactive coupling of an AOGCM with a thermomechanical ice-sheet model
We present results from a greenhouse warming experiment obtained from an atmosphere-ocean-sea ice general circulation model that is fully interactively coupled with a three-dimensional model of the Greenland ice sheet. The experiment covers the period 1970-2099 and is driven by the IPCC SRES B2 scen...
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ftawi:oai:epic.awi.de:4510 2024-09-15T17:39:59+00:00 The response of the Greenland ice sheet to climate changes in the 21st century by interactive coupling of an AOGCM with a thermomechanical ice-sheet model Huybrechts, Philippe Janssens, I. Poncin, C. Fichefet, T. 2002 application/pdf https://epic.awi.de/id/eprint/4510/ https://epic.awi.de/id/eprint/4510/1/Huy2002c.pdf https://hdl.handle.net/10013/epic.15085 https://hdl.handle.net/10013/epic.15085.d001 unknown https://epic.awi.de/id/eprint/4510/1/Huy2002c.pdf https://hdl.handle.net/10013/epic.15085.d001 Huybrechts, P. , Janssens, I. , Poncin, C. and Fichefet, T. (2002) The response of the Greenland ice sheet to climate changes in the 21st century by interactive coupling of an AOGCM with a thermomechanical ice-sheet model , Annals of Glaciology, 35 , pp. 409-415 . hdl:10013/epic.15085 EPIC3Annals of Glaciology, 35, pp. 409-415 Article isiRev 2002 ftawi 2024-06-24T03:54:51Z We present results from a greenhouse warming experiment obtained from an atmosphere-ocean-sea ice general circulation model that is fully interactively coupled with a three-dimensional model of the Greenland ice sheet. The experiment covers the period 1970-2099 and is driven by the IPCC SRES B2 scenario. The Greenland model is a thermomechanical high-resolution (20 km) model coupled with a visco-elastic bedrock model. The melt-and-runoff model is based on the positive-degree day method and includes meltwater retention in the snowpack and the formation of superimposed ice. The AOGCM is a coarse resolution model without flux correction based on the LMD 5.3 atmospheric model coupled with a primitive-equation, free-surface oceanic component incorporating sea ice (CLIO). By 2100, average Greenland annual temperature is found to rise by about 4.5°C and mean precipitation by about 35 %. The total fresh water flux approximately doubles over this period due to increased runoff from the ice sheet and the ice-free land, but the calving rate is found to decrease by 25%. The ice sheet shrinks equivalent to 4 cm of sea-level rise. The contribution from the background evolution is not more than 5 %. We did not find significant changes in the patterns of climate change over the North Atlantic region compared with a climate change run without Greenland fresh water feedback. Article in Journal/Newspaper Annals of Glaciology Greenland Ice Sheet North Atlantic Sea ice Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
We present results from a greenhouse warming experiment obtained from an atmosphere-ocean-sea ice general circulation model that is fully interactively coupled with a three-dimensional model of the Greenland ice sheet. The experiment covers the period 1970-2099 and is driven by the IPCC SRES B2 scenario. The Greenland model is a thermomechanical high-resolution (20 km) model coupled with a visco-elastic bedrock model. The melt-and-runoff model is based on the positive-degree day method and includes meltwater retention in the snowpack and the formation of superimposed ice. The AOGCM is a coarse resolution model without flux correction based on the LMD 5.3 atmospheric model coupled with a primitive-equation, free-surface oceanic component incorporating sea ice (CLIO). By 2100, average Greenland annual temperature is found to rise by about 4.5°C and mean precipitation by about 35 %. The total fresh water flux approximately doubles over this period due to increased runoff from the ice sheet and the ice-free land, but the calving rate is found to decrease by 25%. The ice sheet shrinks equivalent to 4 cm of sea-level rise. The contribution from the background evolution is not more than 5 %. We did not find significant changes in the patterns of climate change over the North Atlantic region compared with a climate change run without Greenland fresh water feedback. |
format |
Article in Journal/Newspaper |
author |
Huybrechts, Philippe Janssens, I. Poncin, C. Fichefet, T. |
spellingShingle |
Huybrechts, Philippe Janssens, I. Poncin, C. Fichefet, T. The response of the Greenland ice sheet to climate changes in the 21st century by interactive coupling of an AOGCM with a thermomechanical ice-sheet model |
author_facet |
Huybrechts, Philippe Janssens, I. Poncin, C. Fichefet, T. |
author_sort |
Huybrechts, Philippe |
title |
The response of the Greenland ice sheet to climate changes in the 21st century by interactive coupling of an AOGCM with a thermomechanical ice-sheet model |
title_short |
The response of the Greenland ice sheet to climate changes in the 21st century by interactive coupling of an AOGCM with a thermomechanical ice-sheet model |
title_full |
The response of the Greenland ice sheet to climate changes in the 21st century by interactive coupling of an AOGCM with a thermomechanical ice-sheet model |
title_fullStr |
The response of the Greenland ice sheet to climate changes in the 21st century by interactive coupling of an AOGCM with a thermomechanical ice-sheet model |
title_full_unstemmed |
The response of the Greenland ice sheet to climate changes in the 21st century by interactive coupling of an AOGCM with a thermomechanical ice-sheet model |
title_sort |
response of the greenland ice sheet to climate changes in the 21st century by interactive coupling of an aogcm with a thermomechanical ice-sheet model |
publishDate |
2002 |
url |
https://epic.awi.de/id/eprint/4510/ https://epic.awi.de/id/eprint/4510/1/Huy2002c.pdf https://hdl.handle.net/10013/epic.15085 https://hdl.handle.net/10013/epic.15085.d001 |
genre |
Annals of Glaciology Greenland Ice Sheet North Atlantic Sea ice |
genre_facet |
Annals of Glaciology Greenland Ice Sheet North Atlantic Sea ice |
op_source |
EPIC3Annals of Glaciology, 35, pp. 409-415 |
op_relation |
https://epic.awi.de/id/eprint/4510/1/Huy2002c.pdf https://hdl.handle.net/10013/epic.15085.d001 Huybrechts, P. , Janssens, I. , Poncin, C. and Fichefet, T. (2002) The response of the Greenland ice sheet to climate changes in the 21st century by interactive coupling of an AOGCM with a thermomechanical ice-sheet model , Annals of Glaciology, 35 , pp. 409-415 . hdl:10013/epic.15085 |
_version_ |
1810483870640898048 |