A temperaturedependent model of the thermospheric odd nitrogen
Abstract
The diurnal variations of odd nitrogen species (N, NO) in the thermosphere are modeled by solving the timedependent, onedimensional continuity equations with diffusion transport. By comparing the calculated results with N and NO distributions which were determined in an airglow and mass spectrometric observations the following conclusions have emerged: the quantum yield of electronically excited N in the reactions energetically capable of producing the excited species should be larger than 0.5, and probably as large as 0.9; the quenching of the electronically excited N by atomic oxygen is important at altitudes above 120 km (in order to be consistent with the observation of NI 5200A airglow, the quenching coefficient must be as large as ten to the negative 12th cubic cm per sec); the variability of NO density profiles obtained by various experimenters is interpreted to be due to the large diurnal variations of odd nitrogen expected from a large diurnal change in the thermospheric temperature.
 Publication:

Journal of Geomagnetism and Geoelectricity
 Pub Date:
 1977
 DOI:
 10.5636/jgg.29.65
 Bibcode:
 1977JGG....29...65K
 Keywords:

 Atmospheric Models;
 Diurnal Variations;
 Nitrogen;
 Photochemical Reactions;
 Temperature Effects;
 Thermosphere;
 Airglow;
 Ionic Diffusion;
 Ionic Reactions;
 Mass Spectroscopy;
 Nitric Oxide;
 Reaction Kinetics;
 Geophysics