Abstract:The diurnally and seasonally vertical distribution of the extinction coefficient of haze with different intensity categories were analyzed and discussed using the observation from December 2008 to November 2010 from the Micro-Pulse Lidar and seven-elements automatically observational weather station at the Shanghai Urban Environment Meteorology Center. The aerosols mainly existed below 0.5km in height when severe haze occurred. The hour-average extinction coefficient for severe haze, mild haze and non-haze ranged from 0 to 1.2, 0 to 0.5 and 0 to 0.2 km-1 respectively. During daytime, the aerosol concentration became highest at noon and lowest in the afternoon and the aerosol layer rose from morning to afternoon and declined in the evening. The mean extinction coefficient for severe haze days varied ranging from the largest to the fewest in spring, winter, summer and autumn sequently. In summer the high extinction coefficient occurred at low-level atmosphere and in spring just the opposite.
王苑, 耿福海, 陈勇航, 贺千山, 张华, 潘鹄, 毛晓琴. 基于微脉冲激光雷达的上海浦东地区不同强度霾研究[J]. 中国环境科学, 2013, 33(1): 21-29.
WANG Yuan, GENG Fu-Hai, CHEN Yong-Hang, HE Qian-Shan, ZHANG Hua, PAN Hu, MAO Xiao-Qin. Study of haze with different intensity categories at Pudong District in Shanghai based on micro-pulse lidar. CHINA ENVIRONMENTAL SCIENCECE, 2013, 33(1): 21-29.