Mathematics – Logic
Scientific paper
Sep 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jgr....86.7767t&link_type=abstract
Journal of Geophysical Research, vol. 86, Sept. 1, 1981, p. 7767-7770.
Mathematics
Logic
13
Airglow, Gravity Waves, Meteor Trails, Planetary Waves, Wind Measurement, Meteorological Radar, Nightglow, Phase Shift, Wind Effects
Scientific paper
Evidence is presented of planetary wave influence on intensity variations of the 557.7 nm airglow emission. Simultaneous measurements are made at four stations located between 37 deg N and 56 deg N, 36 deg E and 3 deg W. Meteor wind observations are made in France and the USSR, and optical measurements are made in France and Spain. Emphasis is on an oscillation with a period of two days and an amplitude of 10 m/s in the zonal directions, and intensity fluctuations of the green line indicate an oscillation with a period of 4 plus or minus 1 hr. The experimental phase shift between wind and emission is half a period, and is an evanescent or very large wavelength with a period of 52 plus or minus 4 hr and a zonal wave number of plus 3. Emission variations from the zonal wind component are estimated, and best agreement is reached with the first symmetric mode with a phase lag of 25 hr.
Blanco Fernando
Christophe J.
Fellous Jean-Louis
Massebeuf M.
Petitdidier M.
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