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DOI | 10.1029/2019GL085601 |
Revisiting the Impact of Sea Salt on Climate Sensitivity | |
Paulot, Fabien; Paynter, David; Winton, Michael; Ginoux, Paul; Zhao, Ming; Horowitz, Larry W. | |
2020-02-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2020 |
卷号 | 47期号:3 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Recent laboratory and field studies point to an increase of sea salt aerosol (SSA) emissions with temperature, suggesting that SSA may lower climate sensitivity. We assess the impact of a strong (4.2% K-1) and weak (0.7% K-1) temperature response of SSA emissions on the climate sensitivity of the coupled climate model CM4. We find that the stronger temperature dependence improves the simulation of marine aerosol optical depth sensitivity to temperature and lowers CM4 Transient Climate Response (-0.12 K) and Equilibrium Climate Sensitivity (-0.5 K). At CO2 doubling, the higher SSA emission sensitivity causes a negative radiative feedback (-0.125W m(-2) K-1), which can only be partly explained by changes in the radiative effect of SSA (-0.08W m(-2) K-1). Stronger radiative feedbacks are dominated by more negative low-level cloud feedbacks in the Northern Hemisphere, which are partly offset by more positive feedbacks in the Southern Hemisphere associated with a weaker Atlantic Meridional Overturning Circulation. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000529107400013 |
WOS关键词 | AEROSOL OPTICAL DEPTH ; WATER TEMPERATURE ; MODEL ; PARAMETERIZATION ; CIRCULATION ; SIMULATIONS ; ATMOSPHERE ; LAND |
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/279611 |
专题 | 气候变化 |
作者单位 | NOAA, Geophys Fluid Dynam Lab, Princeton, NJ 08540 USA |
推荐引用方式 GB/T 7714 | Paulot, Fabien,Paynter, David,Winton, Michael,et al. Revisiting the Impact of Sea Salt on Climate Sensitivity[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(3). |
APA | Paulot, Fabien,Paynter, David,Winton, Michael,Ginoux, Paul,Zhao, Ming,&Horowitz, Larry W..(2020).Revisiting the Impact of Sea Salt on Climate Sensitivity.GEOPHYSICAL RESEARCH LETTERS,47(3). |
MLA | Paulot, Fabien,et al."Revisiting the Impact of Sea Salt on Climate Sensitivity".GEOPHYSICAL RESEARCH LETTERS 47.3(2020). |
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