收稿日期: 2009-03-23
修回日期: 2009-06-12
网络出版日期: 2010-01-15
基金资助
国家自然科学基金项目(40675079)和中国科学院研究生院院长基金项目资助
Characteristics and relationship of aerosol optical thickness and PM2.5 concentration over Beijing
Received date: 2009-03-23
Revised date: 2009-06-12
Online published: 2010-01-15
王静 , 杨复沫 , 王鼎益 , 贺克斌 . 北京市MODIS气溶胶光学厚度和PM2.5质量浓度的特征及其相关性[J]. 中国科学院大学学报, 2010 , 27(1) : 10 -16 . DOI: 10.7523/j.issn.2095-6134.2010.1.002
The AOT (aerosol optical thickness) data, retrieved by the MODIS on Terra satellite, were compared with PM2.5 mass concentration at Tsinghua University. It was shown that both AOT and PM2.5 had obviously seasonal-change character, and the linear correlation coefficient between them was better in summer than in winter. After modifying weather conditions, such as RH and aerosol elevation, we always found a high correlation coefficient between AOT and PM2.5. The present study suggests that MODIS AOT is an effective means for monitoring PM air quality.
Key words： AOT; PM2.5; air quality; Beijing
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