| DOI: | 10.1002/2013GL058731
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| 论文题名: | Can regional climate engineering save the summer Arctic sea ice? |
| 作者: | Tilmes S.; Jahn A.; Kay J.E.; Holland M.; Lamarque J.-F.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-10417
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| EISSN: | 1944-10148
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| 出版年: | 2014
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| 卷: | 41, 期:3 | | 起始页码: | 880
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| 结束页码: | 885
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| 语种: | 英语
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| 英文关键词: | Arctic dimming
; Arctic sea ice
; geoengineering
; regional climate engineering
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| Scopus关键词: | Climate change
; Computer simulation
; Experiments
; Greenhouse gases
; Solar radiation
; Sun
; Arctic sea ice
; Future climate scenarios
; Geoengineering
; Meridional overturning circulations
; Regional climate
; Short-wave radiation
; Simulation demonstrate
; Surface energy budget
; Sea ice
; emission
; energy budget
; energy flux
; engineering
; numerical model
; regional climate
; sea ice
; shortwave radiation
; summer
; Arctic Ocean
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| 英文摘要: | 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. Key Points A large amount of solar dimming of 13% is required to save the sea ice Compensating changes in local and remote energy fluxes are important Meridional Overturning Circulation would be still reduced ©2014. The Authors. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84893169522&doi=10.1002%2f2013GL058731&partnerID=40&md5=4cb2be24f24f4d17ddfb9c79379b5007
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/7681
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| Appears in Collections: | 气候减缓与适应
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作者单位: | National Center for Atmospheric Research, Boulder, CO, United States
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| Recommended Citation: | |
Tilmes S.,Jahn A.,Kay J.E.,et al. Can regional climate engineering save the summer Arctic sea ice?[J]. Geophysical Research Letters,2014-01-01,41(3).
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