Vol. 12, issue 01, article # 9
pdf Kadygrov B. E., Zhadin E. A. Anomalies and trends in the ozone content in 1979–1992. // Atmospheric and oceanic optics. 1999. V. 12. No. 01. P. 44-52.Copy the reference to clipboard
Abstract:
Based on the satellite TOMS (version 7) data on the total ozone content the monthly mean anomalies and trends are investigated on the global scale for different seasons in 1979–1992 with a special emphasis on the longitudinal structure. In contrast to analyses by Randel and Cobb [J. Geophys. Res. 99, 5433–5447 (1994)] and Stolyarski et al. [Geophys. Res. Lett. 18, 1015–1018 (1991)], the linear trends in the total ozone are calculated; the interannual anomalies are analyzed by means of calculation of several empirical orthogonal functions that describe most of the substantial features of the interannual variability. The total ozone anomalies and trends are shown to be significantly variable, especially in the middle and high latitudes of the Northern Hemisphere during winter/spring, when the stationary planetary waves may penetrate into the stratosphere. Together with the global ozone depletion, the local positive trends of the total ozone are revealed in some regions (for example, northwestward from Greenland in January and southward from South Africa in July). These trends can be associated with interannual variations of the stratospheric wave activity. The effect of long-term variations in the ocean—atmosphere system on interannual and decade-scale variations of the ozone layer is discussed.