CAJ | 학술논문

用Mie散射理论,在已知大气气溶胶粒子的折射率基础上,计算并讨论大气气溶胶以及在其上凝结形成的雨滴的散射相函数、散射效率因子等散射特性.结果表明,对流层中气溶胶粒子的散射能力依次为水滴,冰晶,海洋性粒子,沙尘性粒子,水溶性粒子,煤烟.对于在可溶性核上凝结形成的雨滴,海洋性核的散射能力强于水溶性核的散射能力.由不可溶性核凝结形成雨滴的散射能力依次为煤烟核、冰晶核和沙尘性核.纯水雨滴的散射能力介于沙尘性核和冰晶核之间,强于海洋性核.该结论可以为光学测雨仪器在不同地区条件下的参数设置提供依据.
용Mie산사이론,재이지대기기용효입자적절사솔기출상,계산병토론대기기용효이급재기상응결형성적우적적산사상함수、산사효솔인자등산사특성.결과표명,대류층중기용효입자적산사능력의차위수적,빙정,해양성입자,사진성입자,수용성입자,매연.대우재가용성핵상응결형성적우적,해양성핵적산사능력강우수용성핵적산사능력.유불가용성핵응결형성우적적산사능력의차위매연핵、빙정핵화사진성핵.순수우적적산사능력개우사진성핵화빙정핵지간,강우해양성핵.해결론가이위광학측우의기재불동지구조건하적삼수설치제공의거.
Based on the refractive indices of atmospheric aerosols, the light scattering characteristics of atmospheric aerosols and raindrops which are condensed by different nucleus were analyzed by using the Mie theory. The mathematical characters of the scattering efficiency factor Q_(sc) and scattering phase function p(θ,φ) are discussed, and its numerical computation results were given. The results show that the scattering capability of the atmospheric aerosols are water droplet, ice crystal, maritime particle, dust aerosol, dissolvable particle, smoke aerosols in order. The scattering capability of raindrops condensed by maritime aerosols is greater than that of raindrops condensed by dissolvable aerosols; and the scattering capability of the raindrops condensed by undissolvable aerosols decreased in order of smoke nucleus, ice crystal and sand aerosols. The scattering capability of pure water droplet is considered to be between that of raindrops condensed by sand aerosols and ice crystals, which is greater than that of raindrops condensed by maritime nucleus. The results can provide reference for setting parameter of optic precipitation-measuring instruments in different regions.