Optika Atmosfery i Okeana Journal

Vol. 16, issue 01, article # 10

Zuev V. V., Grishaev M. V., Dolgii S. I. Long-term variability of ozone and nitrogen dioxide in the stratosphere based on the results of six-year observations at the Siberian Lidar Station . // Atmospheric and oceanic optics. 2003. V. 16. No. 01. P. 49-53. PDF
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Abstract:

The paper presents the results of analysis of regular spectrophotometric and lidar measurements of vertical distribution and total ozone and nitrogen dioxide content obtained from January 1996 to December 2001. For analysis we used the data on the total ozone content according to the results of ozonometric observations. The profiles obtained from the results of lidar atmospheric sensing in the altitude range from 15 to 30 km were the initial data for analysis of the vertical ozone distribution. The data on vertical distribution and total content of nitrogen dioxide were calculated using twilight measurements of the spectral sky brightness along the zenith in the wavelength range from 430 to 450 nm. In the time behavior of the total ozone content from 1996 to 2001, there is a positive statistically insignificant trend of about (0.11 ± 0.34)% per year. For the total content of nitrogen dioxide, for morning and evening observations, there are large statistically significant trend of (2.8 ± 0.9)% and (1.6 ± 0.7)% per year. It is assumed that high values of trends in the nitrogen dioxide are associated with 1997 El Nino phenomenon.