Physics
Scientific paper
Mar 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993georl..20..515o&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 20, no. 6, p. 515-518.
Physics
6
Herzberg Bands, Imaging Spectrometers, Mesosphere, Nightglow, Spectral Methods, Ultraviolet Spectra, Airglow, Molecular Oscillations, Oxygen, Remote Sensing, Spacecraft Instruments
Scientific paper
This paper reports the first comprehensive spectral survey of the mesospheric airglow between 260 and 832 nm taken by the Imaging Spectrometric Observatory on the ATLAS 1 mission. We select data taken in the spectral window between 275 and 300 nm to determine the variation with altitude of the Herzberg I bands originating from the vibrational levels v-prime = 3 to 8. These data provide the first spatially resolved spectral measurements of the system. The data are used to demonstrate that to within an uncertainty of +/- 10 percent, the vibrational distribution remains invariant with altitude. The deficit reported previously for the v-prime = 5 level is not observed although there is a suggestion of depletion in v-prime = 6. The data could be used to place tight constraints on the vibrational dependence of quenching rate coefficients, and on the abundance of atomic oxygen.
Baldridge T. W.
Chang Tsao
Dougani H.
Fellows C. W.
Fennelly Alphonsus J.
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