Observation And Research Of Ozone Vertical Distribution In Kunming

This paper, November262013-February252015using ECC ozone sonde sounding47the smelly oxygen partial pressure, ozone mixing ratio, temperature, humidity, such as meteorological data in Yunnan Kunming. In2013-2014European center provide reanalysis data. Analyzed the Kunming area in November2013November2014annual average ozone vertical distribution status, daily variation and seasonal variation. Compared with sounding data in2001and2001, the introduction of satellite data is analyzed, also analyzed the process of Kunming winds over the seasonal change. Several conclusions are listed as followings:1) In Kunming the layer of the peak value of multimodes of ozone partial pressure is located in20-30km. Smelly oxygen partial pressure will average maximum value of14.23mPa, corresponding atmospheric average height of25.76km. Ozone mixing ratio throughout the year with an average of15.95ppmv corresponding atmosphere draw height is34.46km. Ozone mixing ratio of maximum height is higher than smelly oxygen partial pressure maximum height of about8km. Smelly minimum exist in the upper troposphere of oxygen partial pressure, the average is lower than the tropopause is less than1km, and the change of the tropopause height will directly affect the smelly oxygen partial pressure changes in the minimum height. From November26,2013to November15,2014, in Kunming ozone output has risen slightly, from the total amount each season average ozone,2014Kunming areas are the most amount of ozone in spring, winter minimum total ozone.2) Ozone constantly change over time, changes by the impact of climate change for a long time, at the same time horizontal movement and vertical movement of ozone can also cause atmospheric ozone changes.3) Compared with the NOAA-19satellite data found that satellite observations of ozone amount greater than the ECC radiosonde observations, between about100hPa level appear bigger difference, the relative error can reach more than80%and relative error to decline, both ends after the troposphere region about254hPa, minimum error is about5%, the stratosphere relative error increases with the reduction of air pressure decreases, at around10hPa minimum, the relative error is0.5%, overall NOAA-19satellite SBUV/2observation of ozone sensitivity is lower than the ECC radiosonde.4) Wind direction with the seasons is obvious happens, Kunming area in addition to the beginning of the summer and autumn is given priority to with easterly winds, the rest of the season is already southeastward, the wind of the seasonal change, mainly in the late spring and autumn, in the middle of the spring and late shift for the first time the stratosphere finish, troposphere behind the stratosphere, mid autumn second convert troposphere to complete the transformation, transformation, influence the stratosphere occur after transformation in addition to the change of the direction of the wind, wind speed also can produce change.