Analysis on ozone distribution characteristics and quantative comparison between Chinese satellite navigation ozonesonde and Vaisala ozonesonde

Abstract

Based on the ozone sounding observation experiment in Beijing in spring 2021, systematic analysis and comparisons of characteristics and eigenvalues of ozone vertical profiles from CYT-1 (made in China) and Vaisala (made in Finland) ozonesondes and verification to ground-based Brewer spectrometer observation were carried out. The results showed that the vertical profile of ozone in spring in Beijing presented a multi-peak pattern, and the partial pressure of ozone (OPP) in the boundary layer normally decreased with height. The maximum OPP, its locating height and the height of the tropopause observed by ozonesondes were similar to studies in the mid-latitudes of the northern hemisphere. The ozone profiles observed by these two types of ozonesondes showed a good consistency in the lower troposphere, while the relative error between two ozonesondes in the stratosphere was within 10% on average. The integrated ozone column from two ozonesondes were generally lower than the results of Brewer spectrometer whereas the correction factors (Cref) of ozonesondes were mostly within the reasonable range, promising the performance reliability of both ozonesondes.