Variation of the Doppler temperature and intensity of 557.7 nm emission during IGW passage

Details Variation of the Doppler temperature and intensity of 557.7 nm emission during IGW passage Variation of the Doppler temperature and intensity of 557.7 nm emission during IGW passage

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986ge%26ae..26..941k&link_type=abstract

Geomagnetizm i Aeronomiia (ISSN 0016-7940), vol. 26, Nov.-Dec. 1986, p. 941-945. In Russian.

Physics

1

Atmospheric Radiation, Atmospheric Temperature, Doppler Effect, Gravity Waves, Internal Waves, Upper Atmosphere, Oxygen Spectra, Temperature Distribution

Scientific paper

The ratio of the relative amplitude (RA) of the intensity of the 557.7 nm emission to the RA of the Doppler temperature of this emission during internal-gravity-wave (IGW) passage was determined experimentally; its value was determined to be 0.6. In addition, a 90-sec delay was found for the phase of intensity variations with respect to the phase of temperature variations. This result is discussed in the light of the most probable features of the 557.7 nm emission excitation mechanism in the upper atmosphere. Excited O2 molecules in the 5Pi(g) state are shown to play a significant role in the excitation of this emission.

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