Physics
Scientific paper
Oct 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981cajph..59.1296c&link_type=abstract
Canadian Journal of Physics, vol. 59, Oct. 1981, p. 1296-1307. Natural Sciences and Engineering Research Council of Canada
Physics
43
Airglow, Annual Variations, Harmonic Analysis, Isis Satellites, Latitude, Oxygen Spectra, Equinoxes, Oxygen Atoms, Remote Sensing, Solstices, Spectrum Analysis
Scientific paper
From 32,000 forbidden O I 577 A airglow limb observations made between April 1971 and December 1972 from the ISIS-2 satellite, the major temporal and spatial night airglow features have been identified. Two methods of analysis were employed: harmonic fitting and global correlation. Airglow emission rate maxima occurred in mid-October and mid-April at all latitudes. The intensities peaked near 35 deg in the winter and near 25 deg in the summer, and showed a symmetry with latitude centered about 5 deg in the winter hemisphere. The mean intensity at mid-latitudes was 175 R, and near the equator was 120 R. From the global correlation analysis it was shown that there are two distinct contributions to the temporal and spatial airglow variations: one is from local production, which dominates during the post-solstice period, and the other is from large scale meridional transport, which dominates during the post-equinox period.
Cogger Leroy L.
Elphinstone R. D.
Murphree John S.
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