| 广州市大气能见度影响因子的贡献研究 |
| |
| 引用本文： | 刘新罡,张远航,曾立民,杨鸿,刘源.广州市大气能见度影响因子的贡献研究[J].气候与环境研究,2006,11(6):733-738. |
| |
| 作者姓名： | 刘新罡 张远航 曾立民 杨鸿 刘源 |
| |
| 作者单位： | 1. 北京大学环境学院环境模拟与污染控制国家重点联合实验室,北京,100871
2. 香港科技大学,香港,999077 |
| |
| 基金项目： | 国家重点基础研究发展规划项目2002CB410801 |
| |
| 摘 要： | 通过对广州市2004年10月1日~11月5日污染性气体NO2、气溶胶散射系数和吸收系数以及粒子化学成分组成等观测资料的分析,得到了影响广州市大气能见度因子的贡献比例:大气气溶胶散射bsa为75.26%、大气气溶胶吸收baa为12.89%、水汽bsw为5.78%、气体吸收bag为3.68%、大气分子散射bsg为2.38%;给出了不同粒径段气溶胶对散射的贡献比例;然后采用逐步多元线性回归得到了大气干气溶胶散射系数与PM2.5、PM10及化学成分的经验关系式;并给出了广州市区气溶胶的质量散射系数。
|
| 关 键 词： | 能见度 消光 散射 气溶胶 |
| 文章编号： | 1006-9585(2006)06-0733-06 |
| 收稿时间： | 07 20 2005 12:00AM |
| 修稿时间： | 07 25 2006 12:00AM |
Research on the Influential Factor of Visibility Reduction in Guangzhou |
| |
| LIU Xin-Gang,ZHANG Yuan-Hang,ZENG Li-Min,YANG Hong and LIU Yuan.Research on the Influential Factor of Visibility Reduction in Guangzhou[J].Climatic and Environmental Research,2006,11(6):733-738. |
| |
| Authors: | LIU Xin-Gang ZHANG Yuan-Hang ZENG Li-Min YANG Hong and LIU Yuan |
| |
| Institution: | 1 Environmental College of Peking University, State Key Joint Laboratory of Environmental Simulation and Pollution Control, Beijing 100871; 2 The Hong Kong University of Science and Technology, Hong Kong 999077 |
| |
| Abstract: | Based on the data acquired from PRD(Pearl River Delta) observation campaign from October 1 to November 5, 2004, analyzing the relationship among atmospheric visibility in Guangzhou and gaseous pollutant, aerosol mass and chemical component. Extinction proportion of each factor is given: b_ sa 75.26%,b_ aa 12.89%,b_ sw 5.78%,b_ ag 3.68%,b_ sg 2.38% respectively. Contribution of different particles to scattering is analyzed. Lastly, experiential function among b_ sa and PM2.5 concentration,PM10 concentration and chemical components is obtained based on the method of stepwise multiple linear regression, then,the mass scattering coefficient is put forward. |
| |
| Keywords: | visibility extinction scattering aerosol |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《气候与环境研究》浏览原始摘要信息 |
| 点击此处可从《气候与环境研究》下载免费的PDF全文 |
|
