Diurnal variability of thermospheric N and NO

Details Diurnal variability of thermospheric N and NO Diurnal variability of thermospheric N and NO

Aug 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977p%26ss...25..735o&link_type=abstract

Planetary and Space Science, vol. 25, Aug. 1977, p. 735-742.

Computer Science

1

Atmospheric Composition, Diurnal Variations, Nitric Oxide, Nitrogen, Thermosphere, Airglow, Atmospheric Chemistry, Atmospheric Density, Atmospheric Models, Photochemical Reactions

Scientific paper

A model for diurnal variations of neutral and ionic nitrogen compounds in the thermosphere is reconstructed on the basis of a photochemical aspect on N(2D), together with observations of the NO density. The NO density so far measured must be reduced by a factor 2, due to a revision of the fluorescence coefficient for the NO gamma-band airglow. Incorporating the quenching reaction of N(2D) with O in the model calculation results in a reduction of the NO density at heights as low as 100 km. These two effects are combined to lead to an evaluation that the N(2D) quantum yield for various possible reactions is as large as 0.9. A smaller rate coefficient for the quenching reaction than that measured in the laboratory is favorable for the recent NO observation in the early morning, as well as the observed emission rates of the 5200-A airglow from N(2D). The present model predicts a significant day-to-night variation of N and NO densities at heights above 100 km. Below 100 km, the NO density is fairly stable because of its long chemical time constant.

Affiliated with

Also associated with

No associations

Rating

Diurnal variability of thermospheric N and NO does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Diurnal variability of thermospheric N and NO, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diurnal variability of thermospheric N and NO will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1881264