The NII 2143 angstrom emission in the dayglow

Journal Article · Tue Dec 01 04:00:00 EST 1987 · Journal of Geophysical Research; (United States)

DOI:https://doi.org/10.1029/JA092iA12p13635· OSTI ID:5875703

Cleary, D D ^[1]; Barth, C A ^[2]

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1. Naval Research Lab., Washington, DC (United States)
2. Univ. of Colorado, Boulder (United States)

Observations of the NII 2143 {angstrom} emission in the Earth's dayglow were obtained by a rocket-borne spectrograph flown on November 9, 1981, and August 11, 1982. The ultraviolet spectra were analyzed using synthetic spectra to separate the contribution of the 2143 {angstrom} emission from the overlapping nitric oxide gamma band. The 2143 {angstrom} column emission rate profiles for both flights were quite similar with peak column emission intensities of approximately 500 Rayleighs at an altitude of 160 km. When the observed column emission rate profiles are compared with theoretical calculations, the production efficiency of this emission was found to be 0.10 {plus minus} 0.04. The 2,143 {angstrom} emission varies by more than a factor of 3 over the solar cycle and therfore should be useful as an indicator of the solar EUV flux.

• OSTI ID: 5875703
• Journal Information: Journal of Geophysical Research; (United States), Journal Name: Journal of Geophysical Research; (United States) Vol. 92:A12; ISSN 0148-0227; ISSN JGREA
• Country of Publication: United States
• Language: English

Related Subjects

661320* -- Auroral
Ionospheric
& Magnetospheric Phenomena-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AIRGLOW
AURORAE
CATIONS
CHALCOGENIDES
CHARGED PARTICLES
COMPARATIVE EVALUATIONS
DATA ANALYSIS
EARTH ATMOSPHERE
ELEMENTS
EMISSION SPECTRA
EVALUATION
IONOSPHERE
IONS
LEVELS
NITRIC OXIDE
NITROGEN
NITROGEN COMPOUNDS
NITROGEN IONS
NITROGEN OXIDES
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PLANETARY IONOSPHERES
ROCKETS
SPECTRA
ULTRAVIOLET SPECTRA