Metastable 2D atomic nitrogen in the mid-latitude nocturnal ionosphere

Details Metastable 2D atomic nitrogen in the mid-latitude nocturnal ionosphere Metastable 2D atomic nitrogen in the mid-latitude nocturnal ionosphere

Feb 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976jgr....81..531t&link_type=abstract

Journal of Geophysical Research, vol. 81, Feb. 1, 1976, p. 531-537.

Physics

4

Airglow, Electron-Ion Recombination, F Region, Metastable Atoms, Midlatitude Atmosphere, Night Sky, Electron Energy, Explorer 51 Satellite, Ion Temperature, Ionospheric Electron Density, Ionospheric Ion Density, Mass Spectroscopy, Nitrogen Oxides, Photochemical Reactions, Quenching

Scientific paper

The only source at night at midlatitudes of N(2D) in the F region is the dissociative recombination of the positive NO ion, and the only important sinks are quenching by atomic oxygen and electrons. Ground-based measurements of the 5200 angstrom emission line resulting from the transition from N(2D) to N(4S) combined with satellite observations of neutral and ion densities and temperatures and the shape of the 5200 angstrom profile are used to relate the rate of quenching by atomic oxygen and the efficiency of production of N(2D) to the rate of quenching by electrons. A rate of quenching by atomic oxygen of 1.5-2.5 x 10 to the minus 12th cu cm/s and an efficiency of (0.8-1.0) plus or minus 30% for the production of N(2D) are obtained.

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