Satellite observed long-term averaged seasonal and spatial ozone variations in the stratosphere

Details Satellite observed long-term averaged seasonal and spatial ozone variations in the stratosphere Satellite observed long-term averaged seasonal and spatial ozone variations in the stratosphere

Dec 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989p%26ss...37.1509p&link_type=abstract

Planetary and Space Science (ISSN 0032-0633), vol. 37, Dec. 1989, p. 1509-1525.

Physics

24

Annual Variations, Ozonometry, Satellite Observation, Stratosphere, Atmospheric Chemistry, Harmonics, Nimbus 7 Satellite, Photochemical Reactions, Spatial Distribution

Scientific paper

Nine years of Nimbus-7 SBUV ozone mixing ratio data (October 1978-September 1987) have been used to analyze the distributions of the long-term average annual and semiannual ozone oscillations in the lower, middle, and upper stratosphere over the region 65 deg S to 65 deg N. It is shown that the derived harmonics are consistent with the result of earlier investigations based on limited sets of data. Year-to-year changes of amplitudes of the annual and semiannual variations are generally small except in the tropical midstratosphere (due to the effect of El Chichon) and the southern subpolar upper stratosphere. Analyses are also presented to show the vertical and seasonal distribution of the zonal ozone variations. It is shown that, for the long-term averaged data, wave 1 is larger during winter than summer and in winter larger in the Northern than Southern Hemisphere. The importance of photochemical and thermal/dynamic processes in modifying the time and zonal variations is discussed.

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