Characteristics of ozone vertical profile observed in the boundary layer around Beijing in autumn  

作　　者：Zhiqiang Ma Xiaoling Zhang Jing Xu xiujuan Zhao Wei Meng 

机构地区：[1]Institute of Urban Meteorology, China Meteorological Administration, Beijing 100089, China.

出　　处：《Journal of Environmental Sciences》2011年第8期1316-1324,共9页环境科学学报（英文版）

基　　金：supported by the Beijing Natural Science Foundation (No. 8082012,8092010);the Special Fund for Meteorological Research in the Public Interest (No. GYHY200806027)

摘　　要：In the autumn of 2008, the vertical profiles of ozone and meteorological parameters in the low troposphere （0-1000 m） were observed at two sites around Beijing, specifically urban Nanjiao and rural Shangdianzi. At night and early morning, the lower troposphere divided into two stratified layers due to temperature inversion. Ozone in the lower layer showed a large gradient due to the titration of NO. Air flow from the southwest brought ozone-rich air to Beijing, and the ozone profiles were marked by a continuous increase in the residual layer at night. The accumulated ozone in the upper layer played an important role in the next day＇s surface peak ozone concentration, and caused a rapid increase in surface ozone in the morning. Wind direction shear and wind speed shear exhibited different influences on ozone profiles and resulted in different surface ozone concentrations in Beijing.In the autumn of 2008, the vertical profiles of ozone and meteorological parameters in the low troposphere （0-1000 m） were observed at two sites around Beijing, specifically urban Nanjiao and rural Shangdianzi. At night and early morning, the lower troposphere divided into two stratified layers due to temperature inversion. Ozone in the lower layer showed a large gradient due to the titration of NO. Air flow from the southwest brought ozone-rich air to Beijing, and the ozone profiles were marked by a continuous increase in the residual layer at night. The accumulated ozone in the upper layer played an important role in the next day＇s surface peak ozone concentration, and caused a rapid increase in surface ozone in the morning. Wind direction shear and wind speed shear exhibited different influences on ozone profiles and resulted in different surface ozone concentrations in Beijing.

关 键 词：OZONESONDE ground-level ozone in Beijing wind shear 

分 类 号：P618.13[天文地球—矿床学] X831[天文地球—地质学]