Ice-albedo feedback in the Northern Hemisphere during the Last Glacial Maximum
We use simulations performed with the Community Climate System Model version 3 (CCSM3), a coupled global climate model, to examine the role of the ice-albedo feedback in the Northern Hemisphere for the Last Glacial Maximum (LGM) and Pre-Industrial (PI) climates. The simulated PI climate is 4.9 Celsi...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.424.1571 2023-05-15T13:10:43+02:00 Ice-albedo feedback in the Northern Hemisphere during the Last Glacial Maximum Melissa A. Burt David A. Randall Bette L. Otto-bliesner The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.424.1571 http://kiwi.atmos.colostate.edu/pubs/Burt_Randall_Otto-Bliesner_submitted.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.424.1571 http://kiwi.atmos.colostate.edu/pubs/Burt_Randall_Otto-Bliesner_submitted.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://kiwi.atmos.colostate.edu/pubs/Burt_Randall_Otto-Bliesner_submitted.pdf text ftciteseerx 2016-01-08T04:12:00Z We use simulations performed with the Community Climate System Model version 3 (CCSM3), a coupled global climate model, to examine the role of the ice-albedo feedback in the Northern Hemisphere for the Last Glacial Maximum (LGM) and Pre-Industrial (PI) climates. The simulated PI climate is 4.9 Celsius warmer globally than the LGM climate, with the greatest warming in the high latitudes of both hemispheres. The positive ice-albedo feedback acts to amplify the climate change as a consequence of the melting of sea ice and ice sheets in the Northern Hemisphere. An unexpected and interesting result is that the ice-albedo feedback is negative in some regions, particularly in the Arctic Ocean, because of an increased ocean basin size at PI. We investigate the roles of ocean basin size, snow cover, sea ice, and incoming solar radiation in determining this result. Text albedo Arctic Arctic Ocean Climate change Sea ice Unknown Arctic Arctic Ocean |
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English |
description |
We use simulations performed with the Community Climate System Model version 3 (CCSM3), a coupled global climate model, to examine the role of the ice-albedo feedback in the Northern Hemisphere for the Last Glacial Maximum (LGM) and Pre-Industrial (PI) climates. The simulated PI climate is 4.9 Celsius warmer globally than the LGM climate, with the greatest warming in the high latitudes of both hemispheres. The positive ice-albedo feedback acts to amplify the climate change as a consequence of the melting of sea ice and ice sheets in the Northern Hemisphere. An unexpected and interesting result is that the ice-albedo feedback is negative in some regions, particularly in the Arctic Ocean, because of an increased ocean basin size at PI. We investigate the roles of ocean basin size, snow cover, sea ice, and incoming solar radiation in determining this result. |
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The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Melissa A. Burt David A. Randall Bette L. Otto-bliesner |
spellingShingle |
Melissa A. Burt David A. Randall Bette L. Otto-bliesner Ice-albedo feedback in the Northern Hemisphere during the Last Glacial Maximum |
author_facet |
Melissa A. Burt David A. Randall Bette L. Otto-bliesner |
author_sort |
Melissa A. Burt |
title |
Ice-albedo feedback in the Northern Hemisphere during the Last Glacial Maximum |
title_short |
Ice-albedo feedback in the Northern Hemisphere during the Last Glacial Maximum |
title_full |
Ice-albedo feedback in the Northern Hemisphere during the Last Glacial Maximum |
title_fullStr |
Ice-albedo feedback in the Northern Hemisphere during the Last Glacial Maximum |
title_full_unstemmed |
Ice-albedo feedback in the Northern Hemisphere during the Last Glacial Maximum |
title_sort |
ice-albedo feedback in the northern hemisphere during the last glacial maximum |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.424.1571 http://kiwi.atmos.colostate.edu/pubs/Burt_Randall_Otto-Bliesner_submitted.pdf |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
albedo Arctic Arctic Ocean Climate change Sea ice |
genre_facet |
albedo Arctic Arctic Ocean Climate change Sea ice |
op_source |
http://kiwi.atmos.colostate.edu/pubs/Burt_Randall_Otto-Bliesner_submitted.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.424.1571 http://kiwi.atmos.colostate.edu/pubs/Burt_Randall_Otto-Bliesner_submitted.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766240254050697216 |