Physics
Scientific paper
Dec 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jgr....8612087h&link_type=abstract
Journal of Geophysical Research, vol. 86, Dec. 20, 1981, p. 12087-12096.
Physics
31
Annual Variations, Harmonic Analysis, Nimbus 4 Satellite, Ozone, Satellite Observation, Ultraviolet Radiation, Atmospheric Chemistry, Backscattering, Geopotential Height, Latitude
Scientific paper
BUV total ozone data from the Nimbus 4 satellite were used to derive the seasonal and interannual variations of total ozone over a 7-year period. The variations were studied using harmonic and superposition analyses of zonal mean data at 10 deg latitudinal increments. Harmonic analysis of the zonal mean data revealed a clear quasibiennial oscillation (QBO) strongest in the tropics and at high latitudes in the Southern Hemisphere. An estimation of the QBO period using a superposition analysis for each latitude zone revealed a decreasing period with latitude in both hemispheres. A maximum period of 27 months occurs in the tropics, while the minimum period in the Northern Hemisphere is about 20 months. This decrease in QBO period with latitude implies that the observed QBO in ozone at low and high latitudes are not directly related. The results do indicate, however, that the interannual variations are latitude dependent.
Hilsenrath Ernest
Schlesinger Barry M.
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