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DOI | 10.1175/JCLI-D-18-0810.1 |
The Atmospheric Pathway of the Cloud-Radiative Impact on the Circulation Response to Global Warming: Important and Uncertain | |
Voigt, Aiko1,2; Albern, Nicole1; Papavasileiou, Georgios1 | |
2019-05-01 | |
发表期刊 | JOURNAL OF CLIMATE |
ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2019 |
卷号 | 32期号:10页码:3051-3067 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; USA |
英文摘要 | Previous work showed that the poleward expansion of the annual-mean zonal-mean atmospheric circulation in response to global warming is strongly modulated by changes in clouds and their radiative heating of the surface and atmosphere. Here, a hierarchy and an ensemble of global climate models are used to study the circulation impact of changes in atmospheric cloud-radiative heating in the absence of changes in sea surface temperature (SST), which is referred to as the atmospheric pathway of the cloud-radiative impact. For the MPI-ESM model, the atmospheric pathway is responsible for about half of the total cloud-radiative impact, and in fact half of the total circulation response. Changes in atmospheric cloud-radiative heating are substantial in both the lower and upper troposphere. However, because SST is prescribed the atmospheric pathway is dominated by changes in upper-tropospheric cloud-radiative heating, which in large part results from the upward shift of high-level clouds. The poleward circulation expansion via the atmospheric pathway and changes in upper-tropospheric cloud-radiative heating are qualitatively robust across three global models, yet their magnitudes vary by a factor of 3. A substantial part of these magnitude differences are related to the upper-tropospheric radiative heating by high-level clouds in the present-day climate. A comparison with observations highlights the model deficits in representing the radiative heating by high-level clouds and indicates that reducing these deficits can contribute to improved predictions of regional climate change. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000467334600002 |
WOS关键词 | GENERAL-CIRCULATION ; CLIMATE-CHANGE ; CARBON-DIOXIDE ; MODEL ; FEEDBACK ; SENSITIVITY ; CONSTRAINT ; SHIFTS ; JET |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
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/183014 |
专题 | 气候变化 |
作者单位 | 1.Karlsruhe Inst Technol, Inst Meteorol & Climate Res, Dept Troposphere Res, Karlsruhe, Germany; 2.Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA |
推荐引用方式 GB/T 7714 | Voigt, Aiko,Albern, Nicole,Papavasileiou, Georgios. The Atmospheric Pathway of the Cloud-Radiative Impact on the Circulation Response to Global Warming: Important and Uncertain[J]. JOURNAL OF CLIMATE,2019,32(10):3051-3067. |
APA | Voigt, Aiko,Albern, Nicole,&Papavasileiou, Georgios.(2019).The Atmospheric Pathway of the Cloud-Radiative Impact on the Circulation Response to Global Warming: Important and Uncertain.JOURNAL OF CLIMATE,32(10),3051-3067. |
MLA | Voigt, Aiko,et al."The Atmospheric Pathway of the Cloud-Radiative Impact on the Circulation Response to Global Warming: Important and Uncertain".JOURNAL OF CLIMATE 32.10(2019):3051-3067. |
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