激光与光电子学进展, 2015, 52 (11): 110102, 网络出版: 2015-10-15   

近地面PM2.5质量浓度廓线反演方法及个例研究 下载: 511次

Retrieval Method of PM2.5 Mass Concentration Profile in Near-Ground and Case Study
作者单位
1 解放军陆军军官学院基础部物理教研室, 安徽 合肥 230031
2 中国科学院安徽光学精密机械研究所中国科学院大气成分与光学重点实验室, 安徽 合肥 230031
3 中国科学技术大学, 安徽 合肥 230031
摘要
分析了气溶胶消光系数和PM2.5 质量浓度之间的关系,提出了利用电荷耦合器件(CCD)侧向散射激光雷达系统和PM2.5 颗粒物探测仪相结合,反演PM2.5 质量浓度廓线的方法。通过个例研究,得出了在相对湿度变化不大时,地面上PM2.5 质量浓度和气溶胶消光系数成线性关系;分析了2014 年4 月13 日和2014 年12 月16 日合肥西区董铺岛PM2.5质量浓度廓线特征:随时间变化,在空间上是有结构的,在紧贴地面有较重的污染物层。探测实验结果表明基于CCD的侧向散射激光雷达和PM2.5 颗粒物探测仪相结合是探测近地面污染物质量浓度廓线行之有效的新方法。
Abstract
The relationship between aerosol extinction coefficient and PM2.5 mass concentration is analyzed, it is proposed that the PM2.5 mass concentration profile can be retrieved by combining the side-scatter lidar system based on charge-coupled device (CCD) and PM2.5 detector. From case study, when the variation of relative humidity is small, PM2.5 mass concentration is proportional to aerosol extinction coefficient at ground. The characteristic of PM2.5 mass concentration profile of near-ground on April 13, and December 16, 2014 at Dongpu island of western suburb of Hefei city is analyzed as changing with time, changing with altitude, and air pollutant concentration is comparatively large in close surface. The experimental results show that the side-scatter lidar system based on CCD combined PM2.5 detector is an effective new method of exploring pollutant mass concentration profile in near-ground.
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陶宗明, 单会会, 麻晓敏, 赵素贵, 张辉, 史博, 刘东, 谢晨波, 王英俭. 近地面PM2.5质量浓度廓线反演方法及个例研究[J]. 激光与光电子学进展, 2015, 52(11): 110102. Tao Zongming, Shan Huihui, Ma Xiaomin, Zhao Sugui, Zhang Hui, Shi Bo, Liu Dong, Xie Chenbo, Wang Yingjian. Retrieval Method of PM2.5 Mass Concentration Profile in Near-Ground and Case Study[J]. Laser & Optoelectronics Progress, 2015, 52(11): 110102.

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