Study of Aerosol Optical Properties over Shanghai
Measurements of spectral Aerosol Optical Depth (AOD) have been carried out at Shanghai during November 2009 to October 2010 by using a hand-held multi-band sun photometer MICROTOPS II. Combining with the data from CALIPSO satellite and the NOAA-HYSPLIT model trajectory map, we studied both the seasonal and diurnal variation of AOD over Shanghai. The finding indicates that the AOD values are mainly low during Nov 2009 to Oct 2010, especially during the period of EXPO. And the seasonal variations of AOD and Angstrom exponent (α) are both remarkable. The highest and lowest of AOD appear in wintertime and summertime of 0.6861±0.1541 and 0.2358±0.1361 respectively, and the highest and lowest of α appear in springtime and summertime of 0.8701±0.1889 and 1.5140±0.2389 respectively. The study of three cases (2009.12.06, 12.22 and12.31) in winter when the highest AOD value appears suggests a high loading of fine-mode particles which mainly caused by local pollution during wintertime in Shanghai. The heights of aerosol layer are generally less than 2 km, and highest AOD mainly appears at noon.
Atmospheric Aerosol optical depth CALPSO Sun photometer HYSPLIT
Xuan Jia Tiantao Cheng Jianmin Chen Yonghang Chen
Department of Environmental Science and Engineering,Fudan University,Shanghai 200433 College of Environmental Science and Engineering,Donghua University,Shanghai 201620
国际会议
西安
英文
1111-1114
2011-08-17（万方平台首次上网日期，不代表论文的发表时间）