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1.中国科学院 安徽光学精密机械研究所 中国科学院大气光学重点实验室,安徽 合肥 230031
2.中国科学技术大学 研究生院 科学岛分院,安徽 合肥 230031
3.中国科学技术大学 环境科学与光电技术学院,安徽 合肥 230026
[ "刘泽阳(1992-),男,安徽池州人,博士研究生,2014年于兰州大学获得学士学位,主要从事气溶胶光学特性方面的研究。E-mail:793288400@qq.com" ]
[ "翁宁泉(1966-),男,研究员,博士生导师,1989年毕业于中国科技大学地球空间科学系大气物理专业,主要从事大气物理方面的研究。E-mail:wnq@aiofm.ac.cn" ]
收稿日期:2019-10-24,
修回日期:2019-12-24,
录用日期:2019-12-24,
纸质出版日期:2020-05-15
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刘泽阳, 李学彬, 孙刚, 等. 中国部分地区的春季气溶胶光学特性[J]. 光学 精密工程, 2020,28(5):1021-1028.
Ze-yang LIU, Xue-bin LI, Gang SUN, et al. Optical properties of spring aerosol in typical areas of China[J]. Optics and precision engineering, 2020, 28(5): 1021-1028.
刘泽阳, 李学彬, 孙刚, 等. 中国部分地区的春季气溶胶光学特性[J]. 光学 精密工程, 2020,28(5):1021-1028. DOI: 10.3788/OPE.20202805.1021.
Ze-yang LIU, Xue-bin LI, Gang SUN, et al. Optical properties of spring aerosol in typical areas of China[J]. Optics and precision engineering, 2020, 28(5): 1021-1028. DOI: 10.3788/OPE.20202805.1021.
为了研究不同地区的气溶胶光学特性,了解地区间气溶胶成分和来源的差异,建立了典型地区的气溶胶光学模式。基于POM02太阳辐射计测量的太阳直射辐射和散射辐射值,利用SKYRAD算法获得了青海德令哈、安徽合肥、广东茂名3个地区的春季气溶胶光学特性参数,包括谱分布、折射指数和单次散射反照率等。然后基于这些参数对气溶胶来源和分布特征进行分析,最后分析了浮尘天气对气溶胶光学参数的影响。结果表明:德令哈地区大气清洁度较高,24%的光学厚度分布在0.2以下,气溶胶来源单一,以大粒子为主导;合肥地区有39%的波长指数分布在0.8~1.0之间,折射率实部随波长变化不明显,气溶胶来源复杂,以小粒子为主导;茂名地区54%的光学厚度集中在0.5左右,分布区间稳定;沙尘天气中,大粒子的增加是气溶胶光学厚度增大的主要原因。
The aim of this study is to determine aerosol optical characteristics in different regions
understand the differences in aerosol composition and source between regions
and establish a typical regional aerosol optical model. First
based on the direct and scattered solar radiation measured by POM02 solar radiometer and using skyrad algorithm
the aerosol optical parameters in spring in Delingha
Qinghai
Hefei
Anhui
and Maoming
Guangdong were obtained. These parameters include spectral distribution
refractive index
single scattering albedo
etc. Based on these parameters
the source and distribution characteristics of aerosols were analyzed. Likewise
the influence of dust weather on aerosol optical parameters was analyzed. The results show that the atmospheric cleanliness in Delingha area is high
24% of optical thickness is distributed below 0.2
and the source of aerosol is single and dominated by large particles. Similarly
39% of the wavelength index in Hefei area is distributed between 0.8—1.0
the real part of refractive index does not change significantly with wavelength
and the source of aerosol is complex and dominated by small particles. Finally
54% of optical thickness in Maoming area is concentrated around 0.5
and the distribution area is complex stability. In dust weather
the increase of large particles is the main reason for the increase in aerosol optical thickness.
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