Temporal and Spatial Power Spectrum Studies of Numerical Simulations of Type II Gradient Drift Irregularities in the Equatorial Electrojet,

Abstract

Temporal and spatial power spectra from computer simulations of the equations modeling Type II irregularities in the equatorial electrojet are presented. The power spectra are computed using the code of Ferch and Sudan, averaging over times as long as 20 seconds. The dependence of the average frequencies and linewidths on wavelenght and angle from the electrojet drift is studied. The mean frequencies obtained agree well with linear theory except at short wavelengths while the linewidths are greater than those predicted by the linear damping rates. The spatial power spectra were also computed and found to be approximately isotropic. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1978
Accession Number
ADA073467

Entities

People

  • M. J. Keskinen
  • R. L. Ferch
  • R. N. Sudan

Organizations

  • Cornell University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Backscattering
  • Computer Simulations
  • Computers
  • Doppler Effect
  • Electrical Solitons
  • Equations
  • Frequency
  • Magnetic Fields
  • New York
  • Phase Velocity
  • Power Spectra
  • Scattering
  • Short Wavelengths
  • Simulations
  • Steady State
  • Two Dimensional
  • Waves

Fields of Study

  • Physics

Readers

  • Mathematics or Statistics
  • Plasma Physics / Magnetohydrodynamics
  • Space/Atmospheric Physics.