Physics
Scientific paper
Aug 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976jgr....81.3786b&link_type=abstract
Journal of Geophysical Research, vol. 81, Aug. 1, 1976, p. 3786-3790. Research supported by the Instituto de Pesquisas Espaciai
Physics
2
Atmospheric Circulation, F Region, Oxygen Spectra, Tropical Regions, Wind Velocity Measurement, Emission Spectra, Meridional Flow, Night Sky, Nightglow, Ogo-4, Oxygen Atoms
Scientific paper
The OGO 4 tropical nightglow data on the O I 1356-A and forbidden O I 6300-A emissions during several months in the fall of 1967 are analyzed in conjunction with theoretical models. From the latitudinal asymmetry present in the tropical emissions the neutral wind velocities in the magnetic meridian at the time of the observations are found to reach 150 m/s near 2000 LT in the Pacific sector and 110 m/s in the Indian sector. The longitudinal dependence of the emissions indicates a strong zonal component (referred to geographic coordinates) and allows the resolution of the inferred wind velocities into geographic zonal and meridional wind components. The geographic zonal component reaches a maximum velocity of 260 m/s near 2200 LT.
Bittencourt J. A.
Hicks Grady T.
Reed E. I.
Tinsley Brian A.
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