Can regional climate engineering save the summer Arctic sea ice?
Rapid declines in summer Arctic sea ice extent are projected under high-forcing future climate scenarios. Regional Arctic climate engineering has been suggested as an emergency strategy to save the sea ice. Model simulations of idealized regional dimming experiments compared to a business-as-usual g...
Published in: | Geophysical Research Letters |
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Language: | English |
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American Geophysical Union
2014
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Online Access: | http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-020-427 https://doi.org/10.1002/2013GL058731 |
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ftncar:oai:drupal-site.org:articles_13355 2023-09-05T13:11:22+02:00 Can regional climate engineering save the summer Arctic sea ice? Tilmes, Simone (author) Jahn, Alexandra (author) Kay, Jennifer (author) Holland, Marika (author) Lamarque, Jean-Francois (author) 2014-02-16 application/pdf http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-020-427 https://doi.org/10.1002/2013GL058731 en eng American Geophysical Union Geophysical Research Letters http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-020-427 doi:10.1002/2013GL058731 ark:/85065/d7542pht Copyright 2014 American Geophysical Union. Text article 2014 ftncar https://doi.org/10.1002/2013GL058731 2023-08-14T18:38:41Z Rapid declines in summer Arctic sea ice extent are projected under high-forcing future climate scenarios. Regional Arctic climate engineering has been suggested as an emergency strategy to save the sea ice. Model simulations of idealized regional dimming experiments compared to a business-as-usual greenhouse gas emission simulation demonstrate the importance of both local and remote feedback mechanisms to the surface energy budget in high latitudes. With increasing artificial reduction in incoming shortwave radiation, the positive surface albedo feedback from Arctic sea ice loss is reduced. However, changes in Arctic clouds and the strongly increasing northward heat transport both counteract the direct dimming effects. A 4 times stronger local reduction in solar radiation compared to a global experiment is required to preserve summer Arctic sea ice area. Even with regional Arctic dimming, a reduction in the strength of the oceanic meridional overturning circulation and a shut down of Labrador Sea deep convection are possible. Article in Journal/Newspaper albedo Arctic Labrador Sea Sea ice OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Arctic Geophysical Research Letters 41 3 880 885 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
Rapid declines in summer Arctic sea ice extent are projected under high-forcing future climate scenarios. Regional Arctic climate engineering has been suggested as an emergency strategy to save the sea ice. Model simulations of idealized regional dimming experiments compared to a business-as-usual greenhouse gas emission simulation demonstrate the importance of both local and remote feedback mechanisms to the surface energy budget in high latitudes. With increasing artificial reduction in incoming shortwave radiation, the positive surface albedo feedback from Arctic sea ice loss is reduced. However, changes in Arctic clouds and the strongly increasing northward heat transport both counteract the direct dimming effects. A 4 times stronger local reduction in solar radiation compared to a global experiment is required to preserve summer Arctic sea ice area. Even with regional Arctic dimming, a reduction in the strength of the oceanic meridional overturning circulation and a shut down of Labrador Sea deep convection are possible. |
author2 |
Tilmes, Simone (author) Jahn, Alexandra (author) Kay, Jennifer (author) Holland, Marika (author) Lamarque, Jean-Francois (author) |
format |
Article in Journal/Newspaper |
title |
Can regional climate engineering save the summer Arctic sea ice? |
spellingShingle |
Can regional climate engineering save the summer Arctic sea ice? |
title_short |
Can regional climate engineering save the summer Arctic sea ice? |
title_full |
Can regional climate engineering save the summer Arctic sea ice? |
title_fullStr |
Can regional climate engineering save the summer Arctic sea ice? |
title_full_unstemmed |
Can regional climate engineering save the summer Arctic sea ice? |
title_sort |
can regional climate engineering save the summer arctic sea ice? |
publisher |
American Geophysical Union |
publishDate |
2014 |
url |
http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-020-427 https://doi.org/10.1002/2013GL058731 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
albedo Arctic Labrador Sea Sea ice |
genre_facet |
albedo Arctic Labrador Sea Sea ice |
op_relation |
Geophysical Research Letters http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-020-427 doi:10.1002/2013GL058731 ark:/85065/d7542pht |
op_rights |
Copyright 2014 American Geophysical Union. |
op_doi |
https://doi.org/10.1002/2013GL058731 |
container_title |
Geophysical Research Letters |
container_volume |
41 |
container_issue |
3 |
container_start_page |
880 |
op_container_end_page |
885 |
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1776204748973670400 |