Other
Scientific paper
May 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986georl..13..427a&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 13, May 1986, p. 427-430.
Other
8
Mesosphere, Mixing Height, Ozone, Solar Terrestrial Interactions, Twenty-Seven Day Variation, Solar Activity Effects, Solar Mesosphere Explorer, Solar Radiation, Spectrum Analysis
Scientific paper
Solar ultraviolet flux changes associated with the 27-day solar rotational period cause corresponding variations in mesospheric ozone near the maximum of the 11-year sunspot cycle. This statement is based on a correlation and spectral analysis of ozone mixing ratios, deduced from Solar Mesospheric explorer satellite-based measurements of 1.27-micron O2 airglow emission and solar flux observations made from the same spacecraft in 1982. With the Lyman-alpha flux taken as an indicator of solar ultraviolet variability, spectral analysis shows a primary period of 27.1 days with a secondary period of 13.5 days. The 27.1-day period is observed in the ozone mixing ratio data together with other periods, including 13.5 days. Both a classical statistical analysis and a time series treatment show that, for 244 days, there is a correlation between ozone and solar flux near 50 km and between 65 and 70 km. Calculations predict a positive correlation over the entire mesosphere if there is no change in temperature accompanying the solar flux. Lack of correlation is temperature induced.
Aikin Arthur C.
Smith Henry J. P.
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