Abstract：The nested air quality prediction model system (NAQPMS) was applied to investigate the temporal and spatial variations of boundary layer ozone over China in 2010, and the photochemical activity in the boundary layer was assessed. The model performed well with the observed daily (monthly) mixing ratio of ozone, and the correlation coefficients ranging from 0.56 to 0.91. Boundary O3 distribution over East Asia showed a significant seasonal variability with the meteorological and photochemical condition. In winter, the seasonal averaged O3 concentrations over East Asia were among 20~50μL/m3with low O3 concentrations cover the East China. The major outflow transport pathway for O3 to the western Pacific in spring was at 25~40°N, where the ozone mixing ratios in the lower troposphere might reach up to 60μL/m3. In summer, high ozone (about 60μL/m3) appeared in the East China around 35°N, where pollutant emissions were strong and ozone net production was high. In autumn, the distribution of O3 was similar to that in spring, but O3 concentrations were around 40~45μL/m3 lower than those in spring. The net photochemical production of ozone in the North China and the Yangtze River Delta has exceeded 30×10-9/d in summertime.
杨文夷, 李杰, 陈焕盛, 王自发, 胡波, 宋涛, 李健军. 东亚边界层臭氧时空分布的数值模拟研究[J]. 中国环境科学, 2014, 34(7): 1633-1641.
YANG Wen-Yi, LI Jie, CHEN Huan-Sheng, WANG Zi-Fa, HU Bo, SONG Tao, LI Jian-Jun. Modeling analysis of boundary layer ozone distributions over East Asia. CHINA ENVIRONMENTAL SCIENCECE, 2014, 34(7): 1633-1641.
