Observations of Aerosol Optical Properties in the Beijing Urban Area in Summer

作     者：JING Jun-Shan ZHANG Ren-Jian TAO Jun ZHANG Lei-Ming 

作者机构：Key Laboratory of Regional Climate-Environment Research for Temperate East Asia （RCE-TEA） Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China Graduate University of the Chinese Academy of Sciences Beijing 100049 China South China Institute of Environmental Sciences Ministry of Environmental Protection Guangzhou 510655 China Air Quality Research Division Science and Technology Branch Environment Canada. Toronto. Canad 

出 版 物：《Atmospheric and Oceanic Science Letters》 (大气和海洋科学快报（英文版）)

年 卷 期：2011年第4卷第6期

页      面：338-343页

学科分类：07[理学] 08[工学] 080104[工学-工程力学] 070602[理学-大气物理学与大气环境] 0815[工学-水利工程] 0706[理学-大气科学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by the Pilot Project of the Knowledge Innovation Program of the Chinese Academy of Sciences(Grant No.KZCX2-YW-Q11-03) the Research and Development Special Fund for Public Welfare Industry(Meteorology) of the China Meteorological Administration(Grant No. GYHY201006047) the Special Scientific Research Funds for Environment Protection Commonweal Section(Grant No.200809143) the Innovation Method Fund of China(Grant No.2008IM020500) the Ministry of Science and Technology of China(Grant No. 2010DFA22770) 

主　　题：optical properties fine particulate matter meteorological conditions 

摘      要：To investigate aerosol optical properties in the Beijing metropolitan area, aerosol absorption coefficient （Ab）, scattering coefficient （So）, and fine particulate matter （PM2.5） were measured in the Beijing urban area from 20 May to 30 August 2009. The average Ab, So, single scat- tering albedo （SSA）, and PM2.5 concentration were 58.0±39.5 M m^-1, 343.5±353.7 M m 1, 0.80±0.10 and 63.6＋50.0 μg m^-3, respectively, during the observation period. Ab, Sc, and SSA all showed single peak diurnal variations, with their maximum values being measured at 0500, 1000, and 1300 local time, respectively. Ab and Sc had a strong positive correlation with PM2.5, and Ab, Sc, and PM25 all had positive correlations with relative humidity and negative correlations with wind speed.