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 

作者机构：Institute of Urban Meteorology China Meteorological Administration Beijing 100089 China. 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2011年第23卷第8期

页      面：1316-1324页

核心收录：

学科分类：081803[工学-地质工程] 07[理学] 08[工学] 070602[理学-大气物理学与大气环境] 0818[工学-地质资源与地质工程] 0706[理学-大气科学] 

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

主　　题：ozonesonde ground-level ozone in Beijing wind shear 

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.