摘要
In order to reveal the variation characteristics of ozone （03） concentration in the atmosphere boundary layer over a desert in winter, an observation experiment was carried out in the Tazhong area by means of a tethered balloon during January 18-25, 2008. The vertical distribution of O3 concentration and its correlation with temperature and humidity were analyzed based on experimental observation data and related data. Results show that： （1） The concentration of O3 mainly ranges from 10 to 50 μg/L, with a maximum of 56.1 μg/L, minimum of 2.6 μg/L, and a daily average concentration of 34.4 μg/L. （2） O3 profiles can be divided into three types： peak, uniform, and growth, where uniform accounts for the majority. （3） Temperature and moisture are influential on O3 concentrations in atmospheric boundary layer. Temperature inversion and water vapor increase in an atmospheric boundary layer leads to a decrease of O3. （4） O3 concentration has an obvious daily change in Tazhong. It is lower at night, begins to increase after sunrise, and reaches a maximum at noon. The maximum appears at 17：00 BJT （Beijing Time）, and the minimum appears at 08：00 BJT.
In order to reveal the variation characteristics of ozone （03） concentration in the atmosphere boundary layer over a desert in winter, an observation experiment was carried out in the Tazhong area by means of a tethered balloon during January 18-25, 2008. The vertical distribution of O3 concentration and its correlation with temperature and humidity were analyzed based on experimental observation data and related data. Results show that： （1） The concentration of O3 mainly ranges from 10 to 50 μg/L, with a maximum of 56.1 μg/L, minimum of 2.6 μg/L, and a daily average concentration of 34.4 μg/L. （2） O3 profiles can be divided into three types： peak, uniform, and growth, where uniform accounts for the majority. （3） Temperature and moisture are influential on O3 concentrations in atmospheric boundary layer. Temperature inversion and water vapor increase in an atmospheric boundary layer leads to a decrease of O3. （4） O3 concentration has an obvious daily change in Tazhong. It is lower at night, begins to increase after sunrise, and reaches a maximum at noon. The maximum appears at 17：00 BJT （Beijing Time）, and the minimum appears at 08：00 BJT.
基金
funded by the National Department Public Benefit (Meteorology) Research Foundation (No.GYHY201006012)
the National Natural Science Foundation Project (No.40775019)
the central level,scientific research institutes for the basic research and development special fund business (No.IDM2006002)
Xinjiang Uighur Autonomous Region Science and Technology Key Project (No.200833119)
