SUB ELF GEOMAGNETIC FLUCTUATIONS. VOLUME II. STATISTICAL STUDIES OF HYDROMAGNETIC EMISSIONS.

Abstract

An empirical formula giving attenuation as a function of F2 peak ion density and hydromagnetic wave frequency has been applied to a nine-month data sample of hydromagnetic emissions (quasisinusoidal oscillations of the earth's magnetic field in the frequency interval around 1 cps). Under the hypothesis that these signals are attenuated as they propagate downward through the ionosphere as hydromagnetic waves, the amplitude and frequency spectrum above the ionosphere at middle latitudes has been deduced. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 26, 1963
Accession Number
AD0437330

Entities

People

  • R. C. Wentworth

Organizations

  • Lockheed Martin Missiles and Space

Tags

DTIC Thesaurus Topics

  • Amplitude
  • Attenuation
  • Emission
  • Frequency
  • Intervals
  • Ion Density
  • Ionosphere
  • Ions
  • Latitude
  • Magnetic Fields
  • Oscillation
  • Spectra
  • Temperate Regions

Readers

  • Acoustics.
  • Space/Atmospheric Physics.