Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2017.07.026 |
Radiative effect of black carbon aerosol on a squall line case in North China | |
Fu, Shizuo1; Deng, Xin1; Li, Zhe2; Xue, Huiwen1 | |
2017-11-15 | |
发表期刊 | ATMOSPHERIC RESEARCH |
ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2017 |
卷号 | 197 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | The radiative effect of black carbon aerosol (BC) on a squall line case in north China is studied with the Weather Research and Forecasting model. Before the initiation of the squall line, the surface-emitted BC is mixed only in the boundary layer (BL). BC is then transported from the BL into the free troposphere by the updrafts in the squall line system. Once distributed in the atmosphere, BC absorbs solar radiation and heats the surrounding air. The maximum increase of temperature is 0.05 K for the moderately polluted case bc2 and 0.37 K for the heavily polluted case bc20. In case bc2, where the BC concentration is not very high, the solar flux reaching the surface, the sensible heat flux, and the latent heat flux are not significantly affected by BC. In case bc20, the solar flux reaching the surface, the sensible heat flux, and the latent heat flux are reduced by up to 80, 30, and 21 W m(-2), respectively. The reduced surface evaporation leads to a reduced vapor amount at the early stage. After some time, the heating effect causes a large-scale convergence and brings slightly more vapor into the domain. The effect of BC on the cold pool strength and low-level wind shear is small and hence does not significantly affect the triggering of new convections. In addition, our results show that the effect of BC is negligible on the strength and rain rate of the squall line case. |
英文关键词 | Black carbon aerosol Squall line Downward solar flux Surface evaporation Vapor transport |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000412250700033 |
WOS关键词 | MESOSCALE CONVECTIVE SYSTEMS ; PART I ; ABSORBING AEROSOLS ; HYDROLOGICAL CYCLE ; TROPICAL CYCLONES ; AGING TIMESCALE ; SOOT AEROSOLS ; AIR-POLLUTION ; MIXING-STATE ; ETA-MODEL |
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/38470 |
专题 | 地球科学 |
作者单位 | 1.Peking Univ, Sch Phys, Dept Atmospher & Ocean Sci, Beijing 100871, Peoples R China; 2.China Meteorol Adm, Numer Weather Predict Ctr, Beijing 100081, Peoples R China |
推荐引用方式 GB/T 7714 | Fu, Shizuo,Deng, Xin,Li, Zhe,et al. Radiative effect of black carbon aerosol on a squall line case in North China[J]. ATMOSPHERIC RESEARCH,2017,197. |
APA | Fu, Shizuo,Deng, Xin,Li, Zhe,&Xue, Huiwen.(2017).Radiative effect of black carbon aerosol on a squall line case in North China.ATMOSPHERIC RESEARCH,197. |
MLA | Fu, Shizuo,et al."Radiative effect of black carbon aerosol on a squall line case in North China".ATMOSPHERIC RESEARCH 197(2017). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论