本文已被：浏览 1019次 下载 1158次
中文摘要: 观测到虹的偏振。分析了虹、晕等现象的特点。运用菲涅耳公式给出其偏振度。结果表明：各种现象的偏振度相差较大，主虹、二次虹分别为0.93和0.81，多次虹的偏振度也较大，在0.75以上；46°晕的偏振度为0.16，22°圆晕的偏振度很小，仅为0.04。假日环、日柱的偏振度随入射角有一定的变化范围。虹、假日环、日柱是反射式偏振，以垂直于入射面的振动为主；而46°晕、22°圆晕则是折射式偏振，以平行于入射面的振动为主。着重讨论了水虹和冰虹的偏振.
中文关键词: 虹晕，大气光学，偏振
Abstract:After the first observation on polarization of rainbow,the features of some atmospheric optical phenomena such as rainbow and halo,etc. were analysed.Fresnel formula can be used to calculated poporization angles.The results show as follows,all kinds of angles are far from the same each other.the main rainbow and minor one are respectively 0.93 and 0.81.The difference between repeated rainbows is also sharp by above 0.75.The 46°halo angle is 0.16,while 22°disc halo′s is only 0.04.There is a certain variation limit for angles of the false solar circle and solar column with incident angle.Rainbow,false solar circle and solar column are reflective polorization,mainly characterized by vibration verticle to incident plane.Halo 46°and disc halo 22°are refractive ones,mainly characterized by vibration parallel to incident plane.In the end,polorization of ″water rainbow″ and ″ice rainbow″ were discused emphatically.
文章编号： 中图分类号： 文献标志码：
基金项目:
| Author Name | Affiliation |
引用文本：
张后发,阮士文,周军元,2000.虹晕等几种大气光学现象的偏振[J].气象,26(11):45-47.
,2000.Polorization of Some Atmospheric Optical Phenomena as Rainbow and Halo[J].Meteor Mon,26(11):45-47.
张后发,阮士文,周军元,2000.虹晕等几种大气光学现象的偏振[J].气象,26(11):45-47.
,2000.Polorization of Some Atmospheric Optical Phenomena as Rainbow and Halo[J].Meteor Mon,26(11):45-47.