大气与环境光学学报2025，Vol.20Issue(2)：134-144,11.DOI:10.3969/j.issn.1673-6141.2025.02.002
基于前后向光散射原理的天气现象识别系统设计与初步应用
Design and preliminary application of weather phenomenon recognition system based on forward and backward light scattering principle
摘要
Abstract
Weather phenomenon recognition is of great significance for transportation,agriculture and human daily activities,and automatic weather observation technology based on optical principle has broad application prospects.At present,the distinction of fog and haze by the existing meteorological instruments is mainly based on visibility range,with a single judgment condition,and to identify rain and snow,precipitation sensors are required,which is technically complex.In this work,based on the differences in scattering characteristics of rain,snow,fog and haze particles from different angles,a universal weather phenomenon recognition system based on forward and backward scattering principle is designed and developed,which identifies fog,haze,rain,snow and clean days through two-way scattering angle signals of 40° and 120°.Observation experiments in relatively stable environments show that,the system can realize accurate measurement of atmospheric visibility within a range of 60 m-13 km,and the correlation coefficient between the observed visibility results and the standard visibility below 5 km can reach 0.98.Moreover,it is shown that the range of the measured light intensity ratios in fog,haze,rain,snow and clean days are 0.16-0.19,0.21-0.45,0.11-0.15,0.75-0.90 and 0.47-0.58,respectively,which can realize accurate differentiation of different weather types.关键词
前向散射/后向散射/能见度/散射光强比/天气现象Key words
forward scattering/backward scattering/visibility/scattering light intensity ratio/weather phenomenon分类
大气科学引用本文复制引用
王志儒,程寅,桂华侨,张礁石,杨明,刘建国..基于前后向光散射原理的天气现象识别系统设计与初步应用[J].大气与环境光学学报,2025,20(2):134-144,11.基金项目
安徽省重点研发与开发计划(202004a07020048) （202004a07020048）
