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DOI | 10.1029/2018GL081110 |
The Effect of Arctic Sea Ice Loss on the Hadley Circulation | |
Chemke, R.1; Polvani, L. M.1,2,3; Deser, C.4 | |
2019-01-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:2页码:963-972 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | One of the most robust responses of the climate system to future greenhouse gas emissions is the melting of Arctic sea ice. It is thus essential to elucidate its impacts on other components of the climate system. Here we focus on the response of the annual mean Hadley cell (HC) to Arctic sea ice loss using a hierarchy of model configurations: atmosphere only, atmosphere coupled to a slab ocean, and atmosphere coupled to a full-physics ocean. In response to Arctic sea ice loss, as projected by the end of the 21st century, the HC shows negligible changes in the absence of ocean-atmosphere coupling. In contrast, by warming the Northern Hemisphere thermodynamic coupling weakens the HC and expands it northward. However, dynamic coupling acts to cool the Northern Hemisphere which cancels most of this weakening and narrows the HC, thus opposing its projected expansion in response to increasing greenhouse gases. Plain Language Summary The climate's response to anthropogenic emissions comprises different feedbacks of the different components in the climate system. One of the robust responses to increased greenhouse gases is the melting of Arctic sea ice, which is found to have large effects on the hydrological circulation in the atmosphere. Here we examine the effect of Arctic sea ice loss on the tropical circulation. We find that under Arctic sea ice loss ocean heat transport acts to transfer the Arctic signal to the tropics and to contract the tropical circulation. This contraction opposes the projected widening of the tropical circulation and thus shows that Arctic sea ice loss acts as a negative internal feedback in the response of the tropical circulation to increased greenhouse gases. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000458607400048 |
WOS关键词 | PRIMITIVE EQUATION MODEL ; ATMOSPHERIC RESPONSE ; TROPICAL RESPONSE ; CLIMATE RESPONSE ; CELL DYNAMICS ; OCEAN ; AMPLIFICATION ; CO2 ; EXPANSION ; DECLINE |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/26406 |
专题 | 气候变化 |
作者单位 | 1.Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA; 2.Columbia Univ, Dept Earth & Environm Sci, Palisades, NY USA; 3.Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY USA; 4.Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA |
推荐引用方式 GB/T 7714 | Chemke, R.,Polvani, L. M.,Deser, C.. The Effect of Arctic Sea Ice Loss on the Hadley Circulation[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(2):963-972. |
APA | Chemke, R.,Polvani, L. M.,&Deser, C..(2019).The Effect of Arctic Sea Ice Loss on the Hadley Circulation.GEOPHYSICAL RESEARCH LETTERS,46(2),963-972. |
MLA | Chemke, R.,et al."The Effect of Arctic Sea Ice Loss on the Hadley Circulation".GEOPHYSICAL RESEARCH LETTERS 46.2(2019):963-972. |
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