摘要
实验测量了在不同相对湿度下大气气溶胶光学吸收系数和大气气溶胶质量随相对湿度的变化,研究了气溶胶可见辐射吸收性能和单一排放源排放的气溶胶在不同相对湿度下的吸收性质及光学吸收系数大小.计算分析了在不同相对湿度下大气气溶胶光学折射指数虚部值大小.结果表明,相对湿度对大气气溶胶可见辐射吸收有较大影响.中国地区大气气溶胶光学吸收系数、光学折射指数虚部值大小由西北向东南递减,表现为北方高,南方低,北方重工业城市最大,南方西双版纳最小.
The optical absorption coefficient and mass of atmospheric aerosol were measured by experiment at different relative humidities.The visible radiation absorption coefficients of aerosol and single source were also studied.Optical refraction index imaginary unit was analyzed.The results showed that relative humidity had obvious effect on visible radiation absorption of aerosol.Optical absorption coefficient and optical refraction index imaginary unit declined from northwest to southeast,which were higher in the north and lower in the south,the highest in northern heavy industrial cities and the lowest in Xishuangbanna,southern China.
出处
《过程工程学报》
CAS
CSCD
北大核心
2009年第S2期237-242,共6页
The Chinese Journal of Process Engineering
基金
国家973计划资助项目(编号:2006CB403705)
关键词
相对湿度
光学吸收系数
光学折射指数虚部
中国地区
relative humidity
optical absorption coefficient
optical refraction index imaginary unit
China area
