Solar Flare Effects on Short-Path VLF Ionospheric Soundings.

Abstract

Examination of the effects of 10 solar flares on near-vertical-incidence vlf soundings shows change with flare, probing vlf radio frequency, polarization of downcoming wave, and direction of propagation relative to geomagnetic field. A single consistent feature was noted, namely that an increase in relative propagation time never occurred during the onset of a flare. The variation from flare to flare is evidently predominately the result of variation in the x-ray spectra. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 25, 1971
Accession Number
AD0887903

Entities

People

  • V. R. Noonkester

Organizations

  • Naval Information Warfare Systems Command

Tags

DTIC Thesaurus Topics

  • Diffraction
  • Electromagnetic Spectra
  • Frequency
  • Frequency Bands
  • Polarization
  • Radio Frequency
  • Solar Flares
  • Spectra
  • Wave Phenomena
  • X Ray Spectra
  • X Rays

Readers

  • Space/Atmospheric Physics.