RELATION BETWEEN IONOSPHERIC AND GEOMAGNETIC STORMS

Abstract

Analysis was made of the variations of the minimum frequency reflected from the ionic regions (fmin) and the horizontal geomagnetic component in a short-time interval preceding and following 21 sudden-commencement (SC) geomagnetic storms. The relative energy levels of the plasma clouds ejected from the sun are estimated from the variations of the geomagnetic field following a sudden commencement. Highenergy clouds are found to be associated with pre-SC increases in fmin and the horizontal component. Post-SC variations in fmin strongly depend on the magnitude of geomagnetic activity. The polar cap absorption and geomagnetic disturbance accompanying the storms of 13 and 29 September 1957 are analyzed in detail. (Author)

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1961
Accession Number
AD0256237

Entities

People

  • Gerald F. Rourke

Tags

DTIC Thesaurus Topics

  • Absorption
  • Energy Levels
  • Frequency
  • Intervals
  • Magnetic Disturbances
  • Magnetic Storms
  • Polar Cap
  • Polar Cap Absorption
  • Regions
  • Time Intervals

Fields of Study

  • Environmental science

Readers

  • Solar Physics
  • Space/Atmospheric Physics.