Ozone content of the atmosphere. 1. Climatological characteristics of the total ozone content in the 100–110° E longitudinal zone

The climatological characteristics of the total ozone content (TOC) in the 100°–110° E longitudinal zone have been studied. The results of the TOC measurements, using the TOMS spectrometer installed on board the Earth Probe satellite from July 1996 to January 2003, have been used. Substantial latitudinal differences in the TOC variations have been found. The “latitudinal effect” is especially distinct in the annual behavior. The annual wave amplitude substantially increases from the equator to the pole in the Northern Hemisphere. The dispersion also substantially varies along latitude: the TOC variability is minimal at the equatorial stations. It has been noted that the total ozone content increased in 2002, and this increase was most substantial (by 110 DU) in the Antarctic Regions (at Vostok station). The quasi-biennial oscillations with the amplitude maximum at the equatorial stations have been revealed.