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DOI | 10.1029/2020GL088053 |
Quantifying the impact of wind and surface humidity induced surface heat exchange on the circulation shift in response to increased CO2 | |
Zhihong Tan; Tiffany A. Shaw | |
2020-09-14 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2020 |
英文摘要 | We extend the locking technique to separate the poleward shift of the atmospheric circulation in response to quadrupled CO2 into contributions from: 1) CO2 increase, 2) cloud radiative effects and 3) wind and surface humidity induced surface heat exchange. In aquaplanet simulations, wind and surface humidity induced surface heat exchange accounts for 30‐‐60% of the Hadley cell edge and midlatitude eddy‐driven jet shift. The increase of surface specific humidity dominates and mostly follows global mean warming. Consistent with previous work the remaining shift is attributed to cloud radiative effects. Across CMIP5 models the intermodel variance in the austral winter circulation shift in response to quadrupled CO2 is significantly correlated with the response of the subtropical‐‐subpolar difference of surface heat exchange. The results highlight the dominant role of surface heat exchange for future circulation changes. |
领域 | 气候变化 |
URL | 查看原文 |
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文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/295307 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Zhihong Tan,Tiffany A. Shaw. Quantifying the impact of wind and surface humidity induced surface heat exchange on the circulation shift in response to increased CO2[J]. Geophysical Research Letters,2020. |
APA | Zhihong Tan,&Tiffany A. Shaw.(2020).Quantifying the impact of wind and surface humidity induced surface heat exchange on the circulation shift in response to increased CO2.Geophysical Research Letters. |
MLA | Zhihong Tan,et al."Quantifying the impact of wind and surface humidity induced surface heat exchange on the circulation shift in response to increased CO2".Geophysical Research Letters (2020). |
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