Gravity waves from O2 nightglow during the AIDA '89 campaign. I - Emission rate/temperature observations

Details Gravity waves from O2 nightglow during the AIDA '89 campaign. I - Emission rate/temperature observations Gravity waves from O2 nightglow during the AIDA '89 campaign. I - Emission rate/temperature observations

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993jatp...55..355z&link_type=abstract

Journal of Atmospheric and Terrestrial Physics (ISSN 0021-9169), vol. 55, no. 3, p. 355-375.

Physics

34

Gravity Waves, Nightglow, Oxygen Afterglow, Rotational Spectra, Spectral Emission, Temperature Measurement, Waveforms, Wavelengths

Scientific paper

The horizontal characteristics of 14 gravity waves, two evanescent and 12 internal, were derived from 12-direction simultaneous measurements of the O2(1Sigma) (0-1) airglow observations of a ground-based instrument, MORTI, during AIDA '89. The method used here is the Lomb-Scargle method for unevenly spaced data. The apparent wave periods were between 45 and 360 min, the horizontal wavelengths between 200 and 2900 km, and the apparent horizontal wave speeds between 48 and 282 m/s. The observed eta values, the ratio of emission rate fluctuation to temperature fluctuation, lay between 3.5 and 5.5 and the fluctuations were generally in phase.

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