Measurements of the O2 and OH atmospheric bands in nightglow

Details Measurements of the O2 and OH atmospheric bands in nightglow Measurements of the O2 and OH atmospheric bands in nightglow

May 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994ap%26ss.215...11t&link_type=abstract

Astrophysics and Space Science, vol. 215, no. 1, p. 11-15

Astronomy and Astrophysics

Astrophysics

2

Hydroxyl Emission, Nightglow, Optical Measurement, Oxygen Spectra, Annual Variations, Atmospheric Turbulence, Ionospheric Disturbances, Ionospheric Heating, Light Emission, Optical Emission Spectroscopy, Photometry

Scientific paper

Spectrographic observations from the Abastumani Astrophysical Observatory during 1987-1992 of the OH nightglow emission bands (9,4), (6,2), (5,1) and molecular oxygen bands (0,1) establish seasonal temperature variations at 85-95 km height. A correlation between the mean intensities of the O2 (0,1) band and the OI 557.7 nm line emission is found, confirming the existence of a general two-stepped formation mechanism of these emissions. However, for OI emission levels between 200 to 600 R this relation is broken, indicating a predominance of dynamical over purely photochemical factors creating extreme values of this line emission.

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