兰州大学机构库 >大气科学学院
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 PublicationADVANCES IN ATMOSPHERIC SCIENCES
ISSN0256-1530
Volume37Issue:12Pages:1310-1322
AbstractIndustrial 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).
Keywordaerosol optical properties radiative forcing chemical composition
DOI10.1007/s00376-020-0076-9
Indexed BySCIE
Language英语
WOS Research AreaMeteorology & Atmospheric Sciences
WOS SubjectMeteorology & Atmospheric Sciences
WOS IDWOS:000590034100002
PublisherSCIENCE PRESS
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/441666
Collection大气科学学院
Corresponding AuthorXin, Jinyuan; Zhang, Wenyu
Affiliation1.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 AffilicationCollege of Atmospheric Sciences
Corresponding Author AffilicationCollege 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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