Accession Number : AD0694918

Title :   THE STRUCTURE OF THE TOPSIDE IONOSPHERE DEDUCED FROM ALOUETTE DATA,

Corporate Author : RADIO RESEARCH LABS TOKYO (JAPAN)

Personal Author(s) : Matuura,Nobuo ; Ondoh,Tadanori

Report Date : 06 JAN 1969

Pagination or Media Count : 4

Abstract : Alouette II topside sounding data have been recorded at the Kashima station of the Radio Research Laboratories, Japan, and some preliminary results obtained from analysis of the topside sounding data during the one year period from October, 1966, to September, 1967, are reported. The plasma frequency at the satellite has been determined from several characteristic frequencies of each topside ionogram obtained from Alouette II data. The average nighttime structure of the ionosphere has been derived from plasma frequencies measured at various satellite positions over the data acquisition area of the Kashima station. The results are presented in terms of the electron-density distributions versus altitude and geomagnetic latitude. (Author)

Descriptors :   (*SCIENTIFIC SATELLITES, ATMOSPHERIC SOUNDING), (*ELECTROMAGNETIC RADIATION, IONOSPHERIC PROPAGATION), ELECTRON DENSITY, IONOSPHERE, RESONANT FREQUENCY, SPIKES, SOLAR FLARES, PERIODIC VARIATIONS, PLASMAS(PHYSICS), JAPAN

Subject Categories : Atmospheric Physics
      Radiofrequency Wave Propagation
      Unmanned Spacecraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE