Physics
Scientific paper
Feb 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982jgr....87.1313r&link_type=abstract
Journal of Geophysical Research, vol. 87, Feb. 20, 1982, p. 1313-1318.
Physics
6
Atmospheric Composition, Correlation Coefficients, Ozone, Solar Activity Effects, Solar Terrestrial Interactions, Backscattering, Nimbus 4 Satellite, Periodic Variations, Ultraviolet Radiation
Scientific paper
Approximately six years of global ozone monthly mean data from the Nimbus 4 BUV instrument are compared with monthly values of solar activity using 10.7-cm flux, F(10.7), as a parameter. Several techniques are explored in calculating the correlation between the two data sets, and all are found to yield relatively high correlations, ranging from R = 0.68 for 'raw' monthly means to 0.94 using a six-month running mean for each data set. It is shown, however, that the bulk of the correlation derives from the long-term decreasing trends in both data sets. When the long-term trends are removed, a cross-correlation analysis produces a maximum with no phase shift or with the ozone variations leading the solar variations by one month, thereby reducing the likelihood of a cause and effect relationship on time scales of this order. In view of the current uncertainty in the long-term stability of the BUV instrument and the resulting uncertainty in any long-term trend derived from its data, it is considered unrealistic to draw firm conclusions about a solar cycle influence on total ozone from this satellite data set.
Huang Frank T.
Reber Carl A.
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