ANALYSIS OF LOW LATITUDE D AND E REGION DATA
Semi-annual technical rept. no. 2, 15 May-15 Nov 1966
IIT RESEARCH INST CHICAGO IL
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A technique for determining the electron density profile in the E- region from group path, phase path, amplitude and true height analysis data is described. A selected data period, 1600 to 2100 GMT on 15 to 19 October, is summarized in the detailed reduction and analysis of the individual data obtained from the different measurement techniques. One period of detailed electron density profile computation is presented. The period 1700 to 1800 GMT on October 1962 also included a moderately intense solar flare so that the excess ionization caused by the flare in the lower ionosphere may be observed. The true height analyses which are developed are extensions of the true height analyses of the F-region and serve to extend conventional true height analysis to lower altitudes or lower electron densities than possible from the conventional analyses alone. The data were obtained utilizing ionosondes, a three frequency HF propagation measurement of both phase and amplitude and riometer measurements of cosmic noise absorption. To develop the profiles presented herein, the group height records from ionograms and phase height measurements from the HF experiment were used.
- Atmospheric Physics
- Plasma Physics and Magnetohydrodynamics