A case study of aerosol characteristics during a haze episode over Beijing
This work presents the variation of aerosol characteristics obtained before,during and after the haze episode in October,2010 in Beijing,a highly industrialized city which located in the northwest of North China Plain with more than 21 million inhabitants.Surface solar irradiance was measured by pyranometer which showed great differences between hazy and non-hazy days.Aerosol scattering coefficients were obtained by integrated nephelometer and the influence of relative humidity on aerosol scattering coefficient was investigated by means of the Weather Research and Forecasting Model Wave Watch Ⅲ (WRF-WW3) imagery.Spectral aerosol optical thickness was measured by Sun photometer and Angstrom exponent were calculated to investigate the variation of aerosol loading and modes under different weather conditions.Haze weather process favoured the formation of the secondary aerosol,which contributed to the increase of fine mode particles.
Haze Aerosol scattering coefficent Aerosol optical thickness Angstrom exponent Beijing
Wanzhi Xu He Chen Donghui Li Fengsheng Zhao Yan Yang
Chinese Academy of Meteorological Science, Beijing 100081, China;Graduate University of Chinese Acad Beifing Institute of Technology, School of Optoelectronics, Beijing 100081, China Graduate University of Chinese Academy of Science, Beijing 100049,China;Institute of Remote Sensing Beijing Normal University, College of Global Change and Earth System Science, Beijing 100875,China
国际会议
2013 International Symposium on Environmental Science and Technology(2013环境科学与技术国际会议)
大连
英文
321-326
2013-06-04（万方平台首次上网日期，不代表论文的发表时间）