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DOI: 10.1002/2016GL068330
论文题名:
The stratospheric pathway for Arctic impacts on midlatitude climate
作者: Nakamura T.; Yamazaki K.; Iwamoto K.; Honda M.; Miyoshi Y.; Ogawa Y.; Tomikawa Y.; Ukita J.
刊名: Geophysical Research Letters
ISSN: 0094-9166
EISSN: 1944-8897
出版年: 2016
卷: 43, 期:7
起始页码: 3494
结束页码: 3501
语种: 英语
英文关键词: Arctic Oscillation ; Arctic sea ice reduction ; polar amplification ; polar vortex weakening ; severe weather ; wave mean flow interaction
Scopus关键词: Flow interactions ; Oscillating flow ; Sea ice ; Upper atmosphere ; Vortex flow ; Arctic Oscillation ; Arctic sea ice ; Polar amplifications ; Polar vortex ; Severe weather ; Wave-mean-flow interaction ; Ice
英文摘要: Recent evidence from both observations and model simulations suggests that an Arctic sea ice reduction tends to cause a negative Arctic Oscillation (AO) phase with severe winter weather in the Northern Hemisphere, which is often preceded by weakening of the stratospheric polar vortex. Although this evidence hints at a stratospheric involvement in the Arctic-midlatitude climate linkage, the exact role of the stratosphere remains elusive. Here we show that tropospheric AO response to the Arctic sea ice reduction largely disappears when suppressing the stratospheric wave mean flow interactions in numerical experiments. The results confirm a crucial role of the stratosphere in the sea ice impacts on the midlatitudes by coupling between the stratospheric polar vortex and planetary-scale waves. Those results and consistency with observation-based evidence suggest that a recent Arctic sea ice loss is linked to midlatitudes extreme weather events associated with the negative AO phase. © 2016. The Authors.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84962688270&doi=10.1002%2f2016GL068330&partnerID=40&md5=8111bfef2eb0f3ed8fc75fea1eb2b175
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10129
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: Arctic Environmental Research Center, National Institute of Polar Research, Tokyo, Japan

Recommended Citation:
Nakamura T.,Yamazaki K.,Iwamoto K.,et al. The stratospheric pathway for Arctic impacts on midlatitude climate[J]. Geophysical Research Letters,2016-01-01,43(7).
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