globalchange  > 科学计划与规划
DOI: 10.1002/2016GL070526
论文题名:
On the atmospheric response experiment to a Blue Arctic Ocean
作者: Nakamura T.; Yamazaki K.; Honda M.; Ukita J.; Jaiser R.; Handorf D.; Dethloff K.
刊名: Geophysical Research Letters
ISSN: 0094-8571
EISSN: 1944-8302
出版年: 2016
卷: 43, 期:19
起始页码: 10394
结束页码: 10402
语种: 英语
英文关键词: Arctic Oscillation ; Arctic sea ice reduction ; extreme weather ; polar amplification ; stratosphere-troposphere coupling
Scopus关键词: Amplification ; Atmospheric movements ; Oceanography ; Sea ice ; Troposphere ; Arctic Oscillation ; Arctic sea ice ; Extreme weather ; Polar amplifications ; Stratosphere-troposphere coupling ; Ice
英文摘要: We demonstrated atmospheric responses to a reduction in Arctic sea ice via simulations in which Arctic sea ice decreased stepwise from the present-day range to an ice-free range. In all cases, the tropospheric response exhibited a negative Arctic Oscillation (AO)-like pattern. An intensification of the climatological planetary-scale wave due to the present-day sea ice reduction on the Atlantic side of the Arctic Ocean induced stratospheric polar vortex weakening and the subsequent negative AO. Conversely, strong Arctic warming due to ice-free conditions across the entire Arctic Ocean induced a weakening of the tropospheric westerlies corresponding to a negative AO without troposphere-stratosphere coupling, for which the planetary-scale wave response to a surface heat source extending to the Pacific side of the Arctic Ocean was responsible. Because the resultant negative AO-like response was accompanied by secondary circulation in the meridional plane, atmospheric heat transport into the Arctic increased, accelerating the Arctic amplification. ©2016. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84990924137&doi=10.1002%2f2016GL070526&partnerID=40&md5=584cd711685fcd7a22a8f37f2418fc97
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9534
Appears in Collections:科学计划与规划
气候变化与战略

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作者单位: Faculty of Environmental Earth Science, Hokkaido University, Sapporo, Japan

Recommended Citation:
Nakamura T.,Yamazaki K.,Honda M.,et al. On the atmospheric response experiment to a Blue Arctic Ocean[J]. Geophysical Research Letters,2016-01-01,43(19).
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