The Total Solar Eclipse of 23 October 1976 Observed at VLF

Abstract

VLF transmissions at 13.6 and 22.3 kHz from Omega Reunion, Omega Japan, and NWC were monitored at Melbourne during the total solar eclipse of 23 October 1976. The solar obscuration function for each path was calculated and compared with the phase deviation observed experimentally. The phase response was found to be a non-linear function of solar obscuration with a maximum phase deviation which was less than expected when compared with the normal diurnal phase variation. A differential equation was developed to model the observations. The effective time constant of ionospheric response was found to be 4.3 + or - 1.5 min and independent of reflection height.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1979
Accession Number
ADA078399

Entities

People

  • K. J. Lynn

Tags

DTIC Thesaurus Topics

  • Australia
  • Buildings And Structures
  • Department Of Defense
  • Differential Equations
  • Eclipses
  • Electronics
  • Equations
  • Obscuration
  • Observation
  • Reflection
  • Research Facilities
  • Solar Eclipses

Fields of Study

  • Physics

Readers

  • Approximation Theory.
  • Space/Atmospheric Physics.