AN INVESTIGATION OF THE NATURAL ELECTROMAGNETIC RADIATIONS BETWEEN 10C/S AND 10 KC/S,

Abstract

Naturally occurring electromagnetic radiation in the audio-frequency range has been studied at Kiruna Geophysical Observatory (geomagnetic latitude 65.3N) since 1958. The results obtained are to some extent compared with similar measurements at Sagamore Hill, Mass., USA (geomagnetic latitude 54N) carried out during the same period. Several emission bands, which are quite distinct from the normal backgroundsignals and are obtained as strong enhancements in portions of the spectrum, have been recorded. (Author)

Document Details

Document Type
Technical Report
Publication Date
Feb 20, 1964
Accession Number
AD0437820

Entities

People

  • Alv Egeland
  • George G. Ustafsson
  • Sven Olsen
  • William Barron

Tags

DTIC Thesaurus Topics

  • Audio Frequency
  • Electromagnetic Radiation
  • Emission
  • Frequency
  • Grids
  • Latitude
  • Measurement
  • Observatories
  • Radiation
  • Spectra

Fields of Study

  • Physics

Readers

  • Astronomy and Astrophysics.
  • Spectroscopy.