Accession Number : AD0663711

Title :   LOWER D-REGION ROCKET EXPERIMENTS USING LOW FREQUENCY RADIO WAVE ABSORPTION,

Corporate Author : PENNSYLVANIA STATE UNIV UNIVERSITY PARK IONOSPHERE RESEARCH LAB

Personal Author(s) : Middendorf,E. R.

Report Date : 15 SEP 1967

Pagination or Media Count : 52

Abstract : A theoretical investigation is made of a possible method for determining electron densities and collision frequencies in the ionospheric D-region. This by means of an experiment involving the simultaneous measurement of the amplitudes of two radio waves of different frequencies, as a function of height, propagated from the ground to a rocket. It is hypothesized that the two frequencies, can be used to recover at each height of interest the two unknown quantities, electron density and collision frequency. It is shown, however, that for any two propagation frequencies below the gyro frequency this method fails. It is shown also that these results are consistent with those that might be obtained using the WKB approximations based on the roots of the Booker quartic. An error analysis of the single frequency method for determining electron densities assuming a single collision frequency model is also presented. (Author)

Descriptors :   (*IONOSPHERE, ELECTRON DENSITY), RADIO WAVES, ABSORPTION, LOW FREQUENCY, RADIO TRANSMISSION, MAGNETIC FIELDS, SOUNDING ROCKETS, MATHEMATICAL ANALYSIS, INTERACTIONS, MEDIUM FREQUENCY

Subject Categories : Atmospheric Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE