Simultaneous rocket and satellite measurements of the topside ionosphere
Charged-particle profiles of upper ionosphere from alouette topside satellite sounding, compared with rocket- & ground-based backscatter measurements
Engineering topics
Publications and source records attributed to Bauer, S. J..
Charged-particle profiles of upper ionosphere from alouette topside satellite sounding, compared with rocket- & ground-based backscatter measurements
Payload designed to measure the electron density of the ionosphere
Structural analysis of upper atmosphere from rocket and satellite measurements of charged particles
Brief discussion of the concentration of helium ions in the upper atmosphere, emphasizing its dependence on temperature
Atmospheric ionic composition determination, electron temperatures, and solar activity experiments from explorer viii satellite
Upper atmosphere temperatures derived from charged particle observations
Atmosphere and electron density distribution above f2 peak
Rocket measurement of the electron density distribution in the topside ionosphere
On April 27, 1961 at 1502 EST a four-stage research rocket was fired from Wallops Island, Virginia, to measure the ionospheric electron density distribution by means of Seddon's CW propagation technique. This experimental technique is based upon the dispersive Doppler effect measured at two harmonically related frequencies, in this case f = 12.267 Mc and 6f = 73.6 Mc. The electron density profile measured above the peak of the F2 region is representative of a diffusive-equilibrium distribution in an isothermal ionosphere having a temperature of 1640 deg +/- 90 deg K. This result, when compared with satellite and other data, indicates that the upper ionosphere is in thermodynamic equilibrium.
The distribution of free electrons in an isothermal upper ionosphere consisting of a binary ion mixture (O+ and H+) is discussed. It is shown that for diffusive equilibrium, which should prevail at altitudes well above the F2 peak, measurements of the electron density distribution permit the determination of other structural parameters of the upper atmosphere, such as the temperature and the concentration of oxygen ions and protons.