Analysis of vertical distribution differences of global stratospheric ozone based on weighted multiplication algebraic algorithm

Abstract

Global climate change and the formation of the Antarctic ozone hole have prompted people to pay attention to the changes in atmospheric ozone content. The global continuous observation of ozone is achieved by retrieving the global total column concentration from nadir satellite data. In this work, the weighted multiplication algebraic algorithm is combined with the radiative transfer model SCIATRAN, by using the 2011 Chappuis-Wulf band SCIAMACHY limb radiation data to retrieve the stratospheric ozone profile between 15- and 40 km altitude, solving the ozone global stratified observation problems. In the ozone global stratification map, the whole process of the global transmission of ozone formed in low latitude regions to high latitude regions is observed, which is directly related to the Brewer-Dobson circulation. During the most severe period of the Antarctic ozone hole from September to October, the Antarctic polar vortex has an obvious hindering effect on ozone transmission, and the polar vortex has a “transparent wall” effect. On the one hand, it is difficult to transfer ozone from the equatorial region to the Antarctic region for replenishment. On the other hand, the retention of ozone-depleting substances over the Antarctic region leads to the acceleration of ozone depletion, and the combination of low replenishment and high depletion contributes to the Antarctic ozone hole. Compared with the global total column concentration of ozone, the observation of global ozone stratification is very valuable for scientific research and will promote the detailed study of the whole process of ozone formation, transmission, and consumption.