Arctic sea ice and atmospheric circulation under the GeoMIP G1 scenario
We analyze simulated sea ice changes in eight different Earth System Models that have conducted experiment G1 of the Geoengineering Model Intercomparison Project (GeoMIP). The simulated response of balancing abrupt quadrupling of CO2 (abrupt4xCO2) with reduced shortwave radiation successfully modera...
Published in: | Journal of Geophysical Research: Atmospheres |
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ftpubman:oai:pure.mpg.de:item_2029266 2023-08-20T04:04:21+02:00 Arctic sea ice and atmospheric circulation under the GeoMIP G1 scenario Moore, J. Rinke, A. Yu, X. Ji, D. Cui, X. Li, Y. Alterskjaer, K. Kristjansson, J. Muri, H. Boucher, O. Huneeus, N. Kravitz, B. Robock, A. Niemeier, U. Schulz, M. Tilmes, S. Watanabe, S. Yang, S. 2014-01-27 application/pdf http://hdl.handle.net/11858/00-001M-0000-0019-8A1E-B http://hdl.handle.net/11858/00-001M-0000-0019-8A20-3 eng eng info:eu-repo/semantics/altIdentifier/doi/10.1002/2013JD021060 http://hdl.handle.net/11858/00-001M-0000-0019-8A1E-B http://hdl.handle.net/11858/00-001M-0000-0019-8A20-3 info:eu-repo/semantics/openAccess Journal of Geophysical Research-Atmospheres info:eu-repo/semantics/article 2014 ftpubman https://doi.org/10.1002/2013JD021060 2023-08-01T21:54:25Z We analyze simulated sea ice changes in eight different Earth System Models that have conducted experiment G1 of the Geoengineering Model Intercomparison Project (GeoMIP). The simulated response of balancing abrupt quadrupling of CO2 (abrupt4xCO2) with reduced shortwave radiation successfully moderates annually averaged Arctic temperature rise to about 1 degrees C, with modest changes in seasonal sea ice cycle compared with the preindustrial control simulations (piControl). Changes in summer and autumn sea ice extent are spatially correlated with temperature patterns but much less in winter and spring seasons. However, there are changes of 20% in sea ice concentration in all seasons, and these will induce changes in atmospheric circulation patterns. In summer and autumn, the models consistently simulate less sea ice relative to preindustrial simulations in the Beaufort, Chukchi, East Siberian, and Laptev Seas, and some models show increased sea ice in the Barents/Kara Seas region. Sea ice extent increases in the Greenland Sea, particularly in winter and spring and is to some extent associated with changed sea ice drift. Decreased sea ice cover in winter and spring in the Barents Sea is associated with increased cyclonic activity entering this area under G1. In comparison, the abrupt4xCO2 experiment shows almost total sea ice loss in September and strong correlation with regional temperatures in all seasons consistent with open ocean conditions. The tropospheric circulation displays a Pacific North America pattern-like anomaly with negative phase in G1-piControl and positive phase under abrupt4xCO2-piControl. Article in Journal/Newspaper Arctic Barents Sea Chukchi Greenland Greenland Sea laptev Sea ice Max Planck Society: MPG.PuRe Arctic Barents Sea Greenland Pacific Journal of Geophysical Research: Atmospheres 119 2 567 583 |
institution |
Open Polar |
collection |
Max Planck Society: MPG.PuRe |
op_collection_id |
ftpubman |
language |
English |
description |
We analyze simulated sea ice changes in eight different Earth System Models that have conducted experiment G1 of the Geoengineering Model Intercomparison Project (GeoMIP). The simulated response of balancing abrupt quadrupling of CO2 (abrupt4xCO2) with reduced shortwave radiation successfully moderates annually averaged Arctic temperature rise to about 1 degrees C, with modest changes in seasonal sea ice cycle compared with the preindustrial control simulations (piControl). Changes in summer and autumn sea ice extent are spatially correlated with temperature patterns but much less in winter and spring seasons. However, there are changes of 20% in sea ice concentration in all seasons, and these will induce changes in atmospheric circulation patterns. In summer and autumn, the models consistently simulate less sea ice relative to preindustrial simulations in the Beaufort, Chukchi, East Siberian, and Laptev Seas, and some models show increased sea ice in the Barents/Kara Seas region. Sea ice extent increases in the Greenland Sea, particularly in winter and spring and is to some extent associated with changed sea ice drift. Decreased sea ice cover in winter and spring in the Barents Sea is associated with increased cyclonic activity entering this area under G1. In comparison, the abrupt4xCO2 experiment shows almost total sea ice loss in September and strong correlation with regional temperatures in all seasons consistent with open ocean conditions. The tropospheric circulation displays a Pacific North America pattern-like anomaly with negative phase in G1-piControl and positive phase under abrupt4xCO2-piControl. |
format |
Article in Journal/Newspaper |
author |
Moore, J. Rinke, A. Yu, X. Ji, D. Cui, X. Li, Y. Alterskjaer, K. Kristjansson, J. Muri, H. Boucher, O. Huneeus, N. Kravitz, B. Robock, A. Niemeier, U. Schulz, M. Tilmes, S. Watanabe, S. Yang, S. |
spellingShingle |
Moore, J. Rinke, A. Yu, X. Ji, D. Cui, X. Li, Y. Alterskjaer, K. Kristjansson, J. Muri, H. Boucher, O. Huneeus, N. Kravitz, B. Robock, A. Niemeier, U. Schulz, M. Tilmes, S. Watanabe, S. Yang, S. Arctic sea ice and atmospheric circulation under the GeoMIP G1 scenario |
author_facet |
Moore, J. Rinke, A. Yu, X. Ji, D. Cui, X. Li, Y. Alterskjaer, K. Kristjansson, J. Muri, H. Boucher, O. Huneeus, N. Kravitz, B. Robock, A. Niemeier, U. Schulz, M. Tilmes, S. Watanabe, S. Yang, S. |
author_sort |
Moore, J. |
title |
Arctic sea ice and atmospheric circulation under the GeoMIP G1 scenario |
title_short |
Arctic sea ice and atmospheric circulation under the GeoMIP G1 scenario |
title_full |
Arctic sea ice and atmospheric circulation under the GeoMIP G1 scenario |
title_fullStr |
Arctic sea ice and atmospheric circulation under the GeoMIP G1 scenario |
title_full_unstemmed |
Arctic sea ice and atmospheric circulation under the GeoMIP G1 scenario |
title_sort |
arctic sea ice and atmospheric circulation under the geomip g1 scenario |
publishDate |
2014 |
url |
http://hdl.handle.net/11858/00-001M-0000-0019-8A1E-B http://hdl.handle.net/11858/00-001M-0000-0019-8A20-3 |
geographic |
Arctic Barents Sea Greenland Pacific |
geographic_facet |
Arctic Barents Sea Greenland Pacific |
genre |
Arctic Barents Sea Chukchi Greenland Greenland Sea laptev Sea ice |
genre_facet |
Arctic Barents Sea Chukchi Greenland Greenland Sea laptev Sea ice |
op_source |
Journal of Geophysical Research-Atmospheres |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/2013JD021060 http://hdl.handle.net/11858/00-001M-0000-0019-8A1E-B http://hdl.handle.net/11858/00-001M-0000-0019-8A20-3 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/2013JD021060 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
119 |
container_issue |
2 |
container_start_page |
567 |
op_container_end_page |
583 |
_version_ |
1774714737995546624 |