On the relationship between the solar soft X ray flux and thermospheric nitric oxide: An update with an improved photoelectron model

Details On the relationship between the solar soft X ray flux and thermospheric nitric oxide: An update with an improved photoelectron model On the relationship between the solar soft X ray flux and thermospheric nitric oxide: An update with an improved photoelectron model

Oct 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995jgr...10019687s&link_type=abstract

Journal of Geophysical Research, Volume 100, Issue A10, p. 19687-19694

Physics

24

Atmospheric Composition And Structure: Thermosphere-Composition And Chemistry, Atmospheric Composition And Structure: Thermosphere-Energy Deposition, Ionosphere: Ionization Mechanisms

Scientific paper

An improved photoelectron model is used to reevaluate the effect of solar soft X rays on lower thermospheric nitric oxide. The improvements include an extension of the upper bound of the energy grid from 450 to 800 eV, extension of the solar spectrum from 19 Å down to 11 Å, the incorporation of Auger ionization for wavelengths shortward of the K shell edge, and the inclusion of a non zero yield of N2(2D) from dissociative ionization of N2 by electron impact. The impact of each of these upgrades is studied with a one-dimensional photochemical model and compared with previously published nitric oxide observations. It is shown that for conditions of high solar activity the photochemical model can now produce over twice as much nitric oxide for a given level of soft X ray input. The net effect of these changes is to reduce significantly the need for extremely large 18-50 Å solar flux values in the model in order to reproduce NO observations which have peak densities of the order of 2×108 cm-3. ©American Institute of Physics 1995

Affiliated with

Also associated with

No associations

Rating

On the relationship between the solar soft X ray flux and thermospheric nitric oxide: An update with an improved photoelectron model 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 On the relationship between the solar soft X ray flux and thermospheric nitric oxide: An update with an improved photoelectron model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the relationship between the solar soft X ray flux and thermospheric nitric oxide: An update with an improved photoelectron model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1354713