Evaluation of the Simulation of Arctic and Antarctic Sea Ice Coverages by Eleven Major Global Climate Models
Comparison of polar sea ice results from 11 major global climate models and satellite-derived observations for 1979-2004 reveals that each of the models is simulating seasonal cycles that are phased at least approximately correctly in both hemispheres. Each is also simulating various key aspects of...
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ftnasantrs:oai:casi.ntrs.nasa.gov:20060017828 2023-05-15T13:34:40+02:00 Evaluation of the Simulation of Arctic and Antarctic Sea Ice Coverages by Eleven Major Global Climate Models Cavalieri, Donald J. Vinnikov, Konstantin Y. Parksinson, Claire Unclassified, Unlimited, Publicly available [2005] application/pdf http://hdl.handle.net/2060/20060017828 unknown Document ID: 20060017828 http://hdl.handle.net/2060/20060017828 Copyright, Distribution as joint owner in the copyright CASI Meteorology and Climatology 2005 ftnasantrs 2018-06-09T23:00:36Z Comparison of polar sea ice results from 11 major global climate models and satellite-derived observations for 1979-2004 reveals that each of the models is simulating seasonal cycles that are phased at least approximately correctly in both hemispheres. Each is also simulating various key aspects of the observed ice cover distributions, such as winter ice not only throughout the central Arctic basin but also throughout Hudson Bay, despite its relatively low latitudes. However, some of the models simulate too much ice, others too little ice (in some cases varying depending on hemisphere and/or season), and some match the observations better in one season versus another. Several models do noticeably better in the Northern Hemisphere than in the Southern Hemisphere, and one does noticeably better in the Southern Hemisphere. In the Northern Hemisphere all simulate monthly average ice extents to within +/-5.1 x 10(exp 6)sq km of the observed ice extent throughout the year; and in the Southern Hemisphere all except one simulate the monthly averages to within +/-6.3 x 10(exp 6) sq km of the observed values. All the models properly simulate a lack of winter ice to the west of Norway; however, most do not obtain as much absence of ice immediately north of Norway as the observations show, suggesting an under simulation of the North Atlantic Current. The spread in monthly averaged ice extents amongst the 11 model simulations is greater in the Southern Hemisphere than in the Northern Hemisphere and greatest in the Southern Hemisphere winter and spring. Other/Unknown Material Antarc* Antarctic Arctic Basin Arctic Hudson Bay north atlantic current North Atlantic Sea ice NASA Technical Reports Server (NTRS) Antarctic Arctic Hudson Hudson Bay Norway |
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Open Polar |
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NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
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topic |
Meteorology and Climatology |
spellingShingle |
Meteorology and Climatology Cavalieri, Donald J. Vinnikov, Konstantin Y. Parksinson, Claire Evaluation of the Simulation of Arctic and Antarctic Sea Ice Coverages by Eleven Major Global Climate Models |
topic_facet |
Meteorology and Climatology |
description |
Comparison of polar sea ice results from 11 major global climate models and satellite-derived observations for 1979-2004 reveals that each of the models is simulating seasonal cycles that are phased at least approximately correctly in both hemispheres. Each is also simulating various key aspects of the observed ice cover distributions, such as winter ice not only throughout the central Arctic basin but also throughout Hudson Bay, despite its relatively low latitudes. However, some of the models simulate too much ice, others too little ice (in some cases varying depending on hemisphere and/or season), and some match the observations better in one season versus another. Several models do noticeably better in the Northern Hemisphere than in the Southern Hemisphere, and one does noticeably better in the Southern Hemisphere. In the Northern Hemisphere all simulate monthly average ice extents to within +/-5.1 x 10(exp 6)sq km of the observed ice extent throughout the year; and in the Southern Hemisphere all except one simulate the monthly averages to within +/-6.3 x 10(exp 6) sq km of the observed values. All the models properly simulate a lack of winter ice to the west of Norway; however, most do not obtain as much absence of ice immediately north of Norway as the observations show, suggesting an under simulation of the North Atlantic Current. The spread in monthly averaged ice extents amongst the 11 model simulations is greater in the Southern Hemisphere than in the Northern Hemisphere and greatest in the Southern Hemisphere winter and spring. |
author |
Cavalieri, Donald J. Vinnikov, Konstantin Y. Parksinson, Claire |
author_facet |
Cavalieri, Donald J. Vinnikov, Konstantin Y. Parksinson, Claire |
author_sort |
Cavalieri, Donald J. |
title |
Evaluation of the Simulation of Arctic and Antarctic Sea Ice Coverages by Eleven Major Global Climate Models |
title_short |
Evaluation of the Simulation of Arctic and Antarctic Sea Ice Coverages by Eleven Major Global Climate Models |
title_full |
Evaluation of the Simulation of Arctic and Antarctic Sea Ice Coverages by Eleven Major Global Climate Models |
title_fullStr |
Evaluation of the Simulation of Arctic and Antarctic Sea Ice Coverages by Eleven Major Global Climate Models |
title_full_unstemmed |
Evaluation of the Simulation of Arctic and Antarctic Sea Ice Coverages by Eleven Major Global Climate Models |
title_sort |
evaluation of the simulation of arctic and antarctic sea ice coverages by eleven major global climate models |
publishDate |
2005 |
url |
http://hdl.handle.net/2060/20060017828 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Antarctic Arctic Hudson Hudson Bay Norway |
geographic_facet |
Antarctic Arctic Hudson Hudson Bay Norway |
genre |
Antarc* Antarctic Arctic Basin Arctic Hudson Bay north atlantic current North Atlantic Sea ice |
genre_facet |
Antarc* Antarctic Arctic Basin Arctic Hudson Bay north atlantic current North Atlantic Sea ice |
op_source |
CASI |
op_relation |
Document ID: 20060017828 http://hdl.handle.net/2060/20060017828 |
op_rights |
Copyright, Distribution as joint owner in the copyright |
_version_ |
1766055632819978240 |