| 相对湿度对大气气溶胶粒子短波辐射特性的影响 |
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| 引用本文： | 杨军,李子华,黄世鸿.相对湿度对大气气溶胶粒子短波辐射特性的影响[J].大气科学,1999,23(2):239-247. |
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| 作者姓名： | 杨军 李子华 黄世鸿 |
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| 作者单位： | 1.南京气象学院,南京 210044 |
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| 基金项目： | 国家自然科学基金资助项目49675250，并得到中国科学院大气物理研究所大气边界层物理和大气化学国家重点实验室资助 |
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| 摘 要： | 利用Mie散射原理和重庆实测气溶胶资料，详细计算了边界层内单个气溶胶粒子的光学特性参量，气溶胶粒子群体的散射、吸收、消光系数及不对称因子、散射比、光学厚度；进而采用二流近似和累加法计算了边界层内太阳短波辐射增温率。目的在于研究相对湿度对以上各特性参量的影响。结果表明，相对湿度在65%～95%之间变化时，对气溶胶粒子群体光学特性参数和太阳增温率的影响在量级上可与气溶胶粒子浓度成倍变化的影响相比拟。
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| 关 键 词： | 大气气溶胶 Mie散射 辐射传输 相对湿度 |
Influence of Relative Humidity on Shortwave Radiative Properties of Atmospheric Aerosol Particles |
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| Yang Jun,Li Zihua and Huang Shihong.Influence of Relative Humidity on Shortwave Radiative Properties of Atmospheric Aerosol Particles[J].Chinese Journal of Atmospheric Sciences,1999,23(2):239-247. |
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| Authors: | Yang Jun Li Zihua and Huang Shihong |
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| Abstract: | Based on Mie scattering theory and ground-based measurements of aerosoIs inChongqing;; detailed calculations are performed to study the influence of relative humidity on shortwaveradiative properties of aerosol particles. Then the heating rate in PBL is determined by means oftwo-stream approximation and the adding method. Results show that the influences of relative humidi-ty changed from 65% to 95% on the aerosol shortwave radiative properties can be compared with theinfluences of multiple change of aerosol partictes total number. |
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| Keywords: | atmospheric aerosol particles Mie scattering theory radiative transfer relativeHumidity |
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