In-flight measurements of the electron concentration and collision frequency from the geophysical sounding rocket 'Vertical 4'

Details In-flight measurements of the electron concentration and collision frequency from the geophysical sounding rocket 'Vertical 4' In-flight measurements of the electron concentration and collision frequency from the geophysical sounding rocket 'Vertical 4'

Sep 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978kosis..16..715b&link_type=abstract

Kosmicheskie Issledovaniia, vol. 16, Sept.-Oct. 1978, p. 715-719. In Russian.

Computer Science

Sound

1

Collision Parameters, Electron Density Profiles, Electron Scattering, Ionospheric Electron Density, Rocket Sounding, Atmospheric Attenuation, F Region, Frequency Response, Interferometry, Vertical Distribution

Scientific paper

The paper deals with the simultaneous measurement of vertical electron density profiles and the effective electron collision frequency in the ionosphere above the European territory of the USSR at mid-latitudes on October 14, 1976, at a solar zenith distance of 24 degrees. The electron concentration was measured with a dispersion interferometer during the descent of the sounding rocket from 628 km down to 82 km. The frequency dependence of radio wave absorption was measured from the ground by the A1 method. The data obtained are used to plot the vertical effective collision frequency profile for heights between 103 and 183 km. The presence of two minima between 140 and 150 km and between 170 and 180 km, respectively, is noted. Satisfactory agreement of the measured vertical electron density profile with calculations from vertical sounding data is established for heights below the F region maximum.

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