INVESTIGATIONS OF PROPERTIES OF THE AURORAL ZONE IONOSPHERE BY MEANS OF A RADIOASTRONOMICAL SWEPT-FREQUENCY INTERFEROMETER, COVERING THE FREQUENCY BAND 35-65 MC/S.

Abstract

Results obtained with the help of a radioastronomical swept-frequency interferometer at Kiruna Geophysical Observatory during the months March - December, 1961, are discussed. A special type of increase of the broad-band radiation intensity of the radio-source Cassiopeia has been observed. This seems to result from the focusing effect of single ionospheric regions of a size larger than the first Fresnel zone. An investigation of correlation of the increases with other geophysical parameters has also been made. (Author)

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1962
Accession Number
AD0282198

Entities

People

  • Ludwik Liszka

Tags

DTIC Thesaurus Topics

  • Coverings
  • Frequency
  • Frequency Bands
  • Fresnel Zones
  • Intensity
  • Interferometers
  • Ionosphere
  • Observatories
  • Radiation
  • Wave Phenomena
  • Wave Propagation

Fields of Study

  • Physics

Readers

  • Astronomy and Astrophysics.
  • Phased Array Antenna Design.
  • Space/Atmospheric Physics.