| 确定气溶胶吸收光学特性的参数化方法研究 |
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| 引用本文： | 苏文颖,陈长和.确定气溶胶吸收光学特性的参数化方法研究[J].大气科学,1997,21(1):49-57. |
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| 作者姓名： | 苏文颖 陈长和 |
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| 作者单位： | 兰州大学大气科学系,兰州 730000 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 本文利用兰州市和北京市的气溶胶资料和辐射资料，根据Robinson的气溶胶吸收后向散射比的参数化方法，由辐射观测资料和清洁大气辐射模式确定已知谱分布下的k值。同时与用东亚大气监测网中元素碳含量值计算得到的k值相比较，两者比较符合。k值的日变化为一天中早上日出后最大，午后最小，傍晚时k值又有所增加。
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| 关 键 词： | 气溶胶 折射指数 谱分布 |
The Research of Parameterization Method of Determining the Aerosol Optical Absorption Characteristics |
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| Su Wenying and Chen Changhe.The Research of Parameterization Method of Determining the Aerosol Optical Absorption Characteristics[J].Chinese Journal of Atmospheric Sciences,1997,21(1):49-57. |
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| Authors: | Su Wenying and Chen Changhe |
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| Abstract: | In this paper, the aerosol data and radiative data of Lanzhou and Beijing are used. The diurnal variations of imaginary part are determined by using radiative observational data and radiative model for the clean sky according to parameterization method of the ratio of the aerosol absorption and back scattering which was proposed by Robinson. Compared with the values calculated from the element carbon content of the East Asia atmospheric monitoring net they are in good agreement. The diurnal variation of imaginary part is that after sunrise the imaginary part is the largest and it reaches the minimum in the afternoon and after sunset it increases again. |
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| Keywords: | aerosol refraction index size distribution |
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