| Optical, Radiative and Chemical Characteristics of Aerosol in Changsha City, Central China | |
Wu, Xiaoyan1,2; Xin, Jinyuan2,3,4; Zhang, WY(张文煜)1 ; Gong, Chongshui2; Ma, Yining1,2; Ma, Yongjing1,2; Wen, Tianxue2; Liu, Zirui2; Tian, Shili2; Wang, Yuesi2; Wu, Fangkun2 | |
| 2020-12 | |
| Source Publication | ADVANCES IN ATMOSPHERIC SCIENCES
 |
| ISSN | 0256-1530 |
| Volume | 37Issue:12Pages:1310-1322 |
| Abstract | Industrial pollution has a significant effect on aerosol properties in Changsha City, a typical city of central China. Therefore, year-round measurements of aerosol optical, radiative and chemical properties from 2012 to 2014 at an urban site in Changsha were analyzed. During the observation period, the energy structure was continuously optimized, which was characterized by the reduction of coal combustion. The aerosol properties have obvious seasonal variations. The seasonal average aerosol optical depth (AOD) at 500 nm ranged from 0.49 to 1.00, single scattering albedo (SSA) ranged from 0.93 to 0.97, and aerosol radiative forcing at the top of the atmosphere (TOA) ranged from -24.0 to 3.8 W m(-2). The chemical components also showed seasonal variations. Meanwhile, the scattering aerosol, such as organic carbon, SO42-, NO3-, and NH4+ showed a decrease, and elemental carbon increased. Compared with observation in winter 2012, AOD and TOA decreased by 0.14 and -1.49 W m(-2) in winter 2014. The scattering components, SO42-, NO3- and NH4+, decreased by 12.8 mu g m(-3) (56.8%), 9.2 mu g m(-3) (48.8%) and 6.4 mu g m(-3) (45.2%), respectively. The atmospheric visibility and pollution diffusion conditions improved. The extinction and radiative forcing of aerosol were significantly controlled by the scattering aerosol. The results indicate that Changsha is an industrial city with strong scattering aerosol. The energy structure optimization had a marked effect on controlling pollution, especially in winter (strong scattering aerosol). |
| Keyword | aerosol optical properties radiative forcing chemical composition |
| DOI | 10.1007/s00376-020-0076-9 |
| Indexed By | SCIE |
| Language | 英语 |
| WOS Research Area | Meteorology & Atmospheric Sciences |
| WOS Subject | Meteorology & Atmospheric Sciences |
| WOS ID | WOS:000590034100002 |
| Publisher | SCIENCE PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.lzu.edu.cn/handle/262010/441666 |
| Collection | 大气科学学院 |
| Corresponding Author | Xin, Jinyuan; Zhang, Wenyu |
| Affiliation | 1.Lanzhou Univ, Coll Atmospher Sci, Key Lab Arid Climat Change & Reducing Disaster Ga, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Nanjing Univ Informat Sci Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing 210044, Peoples R China |
| First Author Affilication | College of Atmospheric Sciences |
| Corresponding Author Affilication | College of Atmospheric Sciences |
| Recommended Citation GB/T 7714 | Wu, Xiaoyan,Xin, Jinyuan,Zhang, Wenyu,et al. Optical, Radiative and Chemical Characteristics of Aerosol in Changsha City, Central China[J]. ADVANCES IN ATMOSPHERIC SCIENCES,2020,37(12):1310-1322. |
| APA | Wu, Xiaoyan.,Xin, Jinyuan.,Zhang, Wenyu.,Gong, Chongshui.,Ma, Yining.,...&Wu, Fangkun.(2020).Optical, Radiative and Chemical Characteristics of Aerosol in Changsha City, Central China.ADVANCES IN ATMOSPHERIC SCIENCES,37(12),1310-1322. |
| MLA | Wu, Xiaoyan,et al."Optical, Radiative and Chemical Characteristics of Aerosol in Changsha City, Central China".ADVANCES IN ATMOSPHERIC SCIENCES 37.12(2020):1310-1322. |
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