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Atmospheric extinction properties in Shenyang, China
Alternative TitleAtmospheric extinction properties in Shenyang, China
Liu Ningwei1; Ma Yanjun3; Ma Jianzhong1; Wang Yangfeng3; Yang Suying2; Li Liguang3
2015
Source PublicationPARTICUOLOGY
ISSN1674-2001
Volume18Pages:120-126
AbstractAtmospheric visibility impairment due to human activities is becoming increasingly significant in metropolitan Shenyang, China. In this study, hourly data of relevant factors throughout the year 2010 in Shenyang were used to evaluate the local atmospheric extinction properties. The results show that the average coefficient of total extinction and aerosol single-scattering albedo in 2010 were 622.72 Mm(-1) and 0.87, respectively, values that are characteristic of the "municipal pollution type". Visibility is most impaired during winter and especially in January. The coefficient of total extinction exhibits a single daily cycle with a maximum at 5-6 am and a minimum at 3 pm. The mean extinction contributions of the constituents, from high to low, were particle scattering (87.49%), particle absorption, gas absorption, and gas scattering. The extinction contribution of gas molecules was little more than 4.5%, far smaller than that of particles. Scattering by particles was the main contributor to extinction, especially in the morning and around midnight. (C) 2014 Published by Elsevier B.V. on behalf of Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences.
Other AbstractAtmospheric visibility impairment due to human activities is becoming increasingly significant in metropolitan Shenyang, China. In this study, hourly data of relevant factors throughout the year 2010 in Shenyang were used to evaluate the local atmospheric extinction properties. The results show that the average coefficient of total extinction and aerosol single-scattering albedo in 2010 were 622.72 Mm~(-1) and 0.87, respectively, values that are characteristic of the "municipal pollution type". Visibility is most impaired during winter and especially in January. The coefficient of total extinction exhibits a single daily cycle with a maximum at 5-6 am and a minimum at 3 pm. The mean extinction contributions of the constituents, from high to low, were particle scattering (87.49%), particle absorption, gas absorption, and gas scattering. The extinction contribution of gas molecules was little more than 4.5%, far smaller than that of particles. Scattering by particles was the main contributor to extinction, especially in the morning and around midnight.
KeywordAEROSOLS VISIBILITY Atmospheric visibility Extinction properties Extinction contributions Particle scattering
Indexed ByCSCD
Language英语
Funding Project[Basic Research and Service Fund Item of IAE] ; [Integration and Application Item of Meteorological Key Technologies] ; [National Science and Technology Pillar Program] ; [Liaoning Province Key Technologies Program of China] ; [Public Welfare Professional Item (Meteorology)] ; [National Natural Science Foundation of China]
CSCD IDCSCD:5370264
Citation statistics
Cited Times:1[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/151979
Collection中国科学院金属研究所
Affiliation1.Chinese Acad Meteorol Science, Beijing 100081, Peoples R China
2.南京大学
3.中国科学院金属研究所
Recommended Citation
GB/T 7714
Liu Ningwei,Ma Yanjun,Ma Jianzhong,et al. Atmospheric extinction properties in Shenyang, China[J]. PARTICUOLOGY,2015,18:120-126.
APA Liu Ningwei,Ma Yanjun,Ma Jianzhong,Wang Yangfeng,Yang Suying,&Li Liguang.(2015).Atmospheric extinction properties in Shenyang, China.PARTICUOLOGY,18,120-126.
MLA Liu Ningwei,et al."Atmospheric extinction properties in Shenyang, China".PARTICUOLOGY 18(2015):120-126.
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