Diurnal variation of atomic nitrogen

Details Diurnal variation of atomic nitrogen Diurnal variation of atomic nitrogen

May 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976jgr....81.2413m&link_type=abstract

Journal of Geophysical Research, vol. 81, May 1, 1976, p. 2413-2416.

Physics

Diurnal Variations, Gas Density, Nitrogen Atoms, Satellite-Borne Instruments, Upper Atmosphere, Abundance, Atmospheric Temperature, Ion Atom Interactions, Mass Spectrometers, Northern Hemisphere, Satellite Orbits

Scientific paper

When the perigee of the Atmospheric Explorer C satellite reached the northern latitudes (68 deg) by mid-April 1974, descending and ascending portions of the orbits stretched symmetrically across the Northern Hemisphere. Corresponding local solar times at altitudes above 400 km were 1700 hours and 0200 hours, respectively, thus providing the opportunity to study the diurnal variation of the neutral constituents. Atomic nitrogen densities, measured with the open-source neutral mass spectrometer, show a pronounced diurnal variation. At 400 km, the density ratios derived from measurements of the descending and ascending portions are 5.2 for N, 4.9 for N2, and 2.0 for O. Absolute densities of atomic nitrogen agree within a factor of 2 or 3 with densities derived from neutral-ion reactions. Measurements taken close to the geomagnetic pole show a decrease in atomic nitrogen densities when an increase in molecular nitrogen is observed.

Affiliated with

Also associated with

No associations

Rating

Diurnal variation of atomic nitrogen 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 variation of atomic nitrogen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diurnal variation of atomic nitrogen will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1796939