生态与农村环境学报2016，Vol.32Issue(2)：338-341,4.DOI:10.11934/j.issn.1673-4831.2016.02.026
能见度反演PM2．5质量浓度方法的对比分析
Comparison Analysis of the Method of Using Visibility to Retrieve Concentration of PM2.5
摘要
Abstract
To characterize precisely the usage of visibility to retrieve concentration of fine particles, a direct method and an indirect method were used to reckon PM2.5 mass concentration based on visibility in a comparative study with the hourly monitoring data of PM2.5 mass concentration and atmospheric visibility at Section 4 of South People Road of Chengdu during the period from June 1, 2013 to Feb. 28, 2014 cited as subject. The former used power functions to directly develop a functional relationship between visibility and PM2.5 mass concentration, while the latter first worked out extinction coeffi⁃cient by visibility and then used linear functions to retrieve PM2.5 mass concentration. Results show as follows: ( 1) Both methods can be used well to retrieve PM2.5 mass concentration and the retrieval matches the ground monitoring data quite well in statistic feature;(2) Compared to the direct method of using visibility to retrieve PM2.5 mass concentration, the in⁃direct method is more explicit in physical significance and more accurate.关键词
成都/PM2.5/消光系数/能见度/反演Key words
Cheng-du City/PM2.5/extinction coefficient/visibility/inversion分类
资源环境引用本文复制引用
崔蕾,倪长健,孙欢欢,刘昆,张研..能见度反演PM2．5质量浓度方法的对比分析[J].生态与农村环境学报,2016,32(2):338-341,4.基金项目
四川省教育厅项目（2014Z155）；四川省教育厅重点项目 （）
