A hindcast simulation of Arctic and Antarctic sea ice variability, 1955-2001
A hindcast simulation of the Arctic and Antarctic sea ice variability during 1955-2001 has been performed with a global, coarse resolution ice-ocean model driven by the National Centers for Environmental Prediction/National Center for Atmospheric Research reanalysis daily surface air temperatures an...
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Language: | English |
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Norwegian Polar Inst
2003
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Online Access: | http://hdl.handle.net/2078.1/61534 https://doi.org/10.1111/j.1751-8369.2003.tb00100.x |
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ftunivlouvain:oai:dial.uclouvain.be:boreal:61534 2024-05-19T07:29:32+00:00 A hindcast simulation of Arctic and Antarctic sea ice variability, 1955-2001 Fichefet, Thierry Goosse, Hugues Maqueda, MAM Workshop on Sea Ice Extent and the Global Climate System UCL - SC/PHYS - Département de physique UCL - SST/ELI/ELIC - Earth & Climate 2003 http://hdl.handle.net/2078.1/61534 https://doi.org/10.1111/j.1751-8369.2003.tb00100.x eng eng Norwegian Polar Inst boreal:61534 http://hdl.handle.net/2078.1/61534 doi:10.1111/j.1751-8369.2003.tb00100.x urn:ISSN:0800-0395 urn:EISSN:1751-8369 Polar Research, Vol. 22, no. 1, p. 91-98 (2003) info:eu-repo/semantics/conferenceObject 2003 ftunivlouvain https://doi.org/10.1111/j.1751-8369.2003.tb00100.x 2024-04-24T01:47:01Z A hindcast simulation of the Arctic and Antarctic sea ice variability during 1955-2001 has been performed with a global, coarse resolution ice-ocean model driven by the National Centers for Environmental Prediction/National Center for Atmospheric Research reanalysis daily surface air temperatures and winds. Both the mean state and variability of the ice packs over the satellite observing period are reasonably well reproduced by the model. Over the 47-year period, the simulated ice area (defined as the total ice-covered oceanic area) in each hemisphere experiences large decadal variability together with a decreasing trend of similar to1 % per decade. In the Southern Hemisphere, this trend is mostly caused by an abrupt retreat of the ice cover during the second half of the 1970s and the beginning of the 1980s. The modelled ice volume also exhibits pronounced decadal variability, especially in the Northern Hemisphere. Besides these fluctuations, we detected a downward trend in Arctic ice volume of 1.8 % per decade and an upward trend in Antarctic ice volume of 1.5 % per decade. However, caution must be exercised when interpreting these trends because of the shortness of the simulation and the strong decadal variations. Furthermore, sensitivity experiments have revealed that the trend in Antarctic ice volume is model-dependent. Conference Object Antarc* Antarctic Arctic Polar Research Sea ice DIAL@UCLouvain (Université catholique de Louvain) Polar Research 22 1 91 98 |
institution |
Open Polar |
collection |
DIAL@UCLouvain (Université catholique de Louvain) |
op_collection_id |
ftunivlouvain |
language |
English |
description |
A hindcast simulation of the Arctic and Antarctic sea ice variability during 1955-2001 has been performed with a global, coarse resolution ice-ocean model driven by the National Centers for Environmental Prediction/National Center for Atmospheric Research reanalysis daily surface air temperatures and winds. Both the mean state and variability of the ice packs over the satellite observing period are reasonably well reproduced by the model. Over the 47-year period, the simulated ice area (defined as the total ice-covered oceanic area) in each hemisphere experiences large decadal variability together with a decreasing trend of similar to1 % per decade. In the Southern Hemisphere, this trend is mostly caused by an abrupt retreat of the ice cover during the second half of the 1970s and the beginning of the 1980s. The modelled ice volume also exhibits pronounced decadal variability, especially in the Northern Hemisphere. Besides these fluctuations, we detected a downward trend in Arctic ice volume of 1.8 % per decade and an upward trend in Antarctic ice volume of 1.5 % per decade. However, caution must be exercised when interpreting these trends because of the shortness of the simulation and the strong decadal variations. Furthermore, sensitivity experiments have revealed that the trend in Antarctic ice volume is model-dependent. |
author2 |
UCL - SC/PHYS - Département de physique UCL - SST/ELI/ELIC - Earth & Climate |
format |
Conference Object |
author |
Fichefet, Thierry Goosse, Hugues Maqueda, MAM Workshop on Sea Ice Extent and the Global Climate System |
spellingShingle |
Fichefet, Thierry Goosse, Hugues Maqueda, MAM Workshop on Sea Ice Extent and the Global Climate System A hindcast simulation of Arctic and Antarctic sea ice variability, 1955-2001 |
author_facet |
Fichefet, Thierry Goosse, Hugues Maqueda, MAM Workshop on Sea Ice Extent and the Global Climate System |
author_sort |
Fichefet, Thierry |
title |
A hindcast simulation of Arctic and Antarctic sea ice variability, 1955-2001 |
title_short |
A hindcast simulation of Arctic and Antarctic sea ice variability, 1955-2001 |
title_full |
A hindcast simulation of Arctic and Antarctic sea ice variability, 1955-2001 |
title_fullStr |
A hindcast simulation of Arctic and Antarctic sea ice variability, 1955-2001 |
title_full_unstemmed |
A hindcast simulation of Arctic and Antarctic sea ice variability, 1955-2001 |
title_sort |
hindcast simulation of arctic and antarctic sea ice variability, 1955-2001 |
publisher |
Norwegian Polar Inst |
publishDate |
2003 |
url |
http://hdl.handle.net/2078.1/61534 https://doi.org/10.1111/j.1751-8369.2003.tb00100.x |
genre |
Antarc* Antarctic Arctic Polar Research Sea ice |
genre_facet |
Antarc* Antarctic Arctic Polar Research Sea ice |
op_source |
Polar Research, Vol. 22, no. 1, p. 91-98 (2003) |
op_relation |
boreal:61534 http://hdl.handle.net/2078.1/61534 doi:10.1111/j.1751-8369.2003.tb00100.x urn:ISSN:0800-0395 urn:EISSN:1751-8369 |
op_doi |
https://doi.org/10.1111/j.1751-8369.2003.tb00100.x |
container_title |
Polar Research |
container_volume |
22 |
container_issue |
1 |
container_start_page |
91 |
op_container_end_page |
98 |
_version_ |
1799479786276388864 |