Physics
Scientific paper
Feb 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980jgr....85..569a&link_type=abstract
Journal of Geophysical Research, vol. 85, Feb. 1, 1980, p. 569-574.
Physics
6
F 1 Region, Ionic Reactions, Ionospheric Composition, Magnetic Equator, Night Sky, Satellite Observation, Atmospheric Composition, Atmospheric Models, Explorer Satellites, Ionospheric Electron Density, Ionospheric Ion Density, Mass Spectrometers, Molecular Ions, Nitric Oxide, Oxygen Ions
Scientific paper
The effects of vertical E x B transport on NO(+), O2(+) and O(+) densities in the nighttime equatorial ionospheric F 1 region are investigated. Ion densities are calculated as functions of altitude, latitude and local time by the numerical solution of coupled, time-dependent ion continuity equations, taking into account production, loss by charge exchange and dissociative recombination and transport by diffusion and E x B drift. The results of the calculations are compared with measurements of NO(+), O2(+) and O(+) ion densities obtained at low altitudes by a mass spectrometer on board the Atmospheric Explorer C satellite, and are found to be consistent with the observations, suggesting that in the equatorial region, vertical transport by E x B drift is primarily responsible for producing the observed NO(+), O2(+) and O(+) density profiles. In addition, the reaction of O2(+) with N(4S) is found to be an important sink for O2(+) and a source of NO(+) ions. Implications of the observed and calculated near constancy of electron and ion densities with altitude when NO(+) is the dominant ion on the growth of large-scale irregularities are also considered
Anderson Dale N.
Rusch David W.
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