Nonlinear Evolution of Diffuse Auroral F Region Ionospheric Irregularities.

Abstract

Numerical simulations of the nonlinear evolution of the current convective instability in the diffuse aurora have been performed for conditions typical of the nighttime high latitude F region. Our results show nearly field aligned plasma irregularities developing in regions of well-defined northward gradients of total electron content (TEC) and field-aligned diffuse auroral particle precipitation. In addition, we find equatorward movement of plasma enhancements and northward (poleward) movement of plasma depletions (holes). Furthermore, one-dimensional spatial power spectra of the irregularities in both the north-south and east-west directions are well described by inverse laws. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jul 02, 1980
Accession Number
ADA086998

Entities

People

  • B. E. Mcdonald
  • Michael J. Keskinen
  • Sidney L. Ossakow

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Computer Science
  • Electric Fields
  • Electrical Engineering
  • Electrons
  • Engineering
  • Grids
  • High Latitudes
  • Instability
  • Latitude
  • Magnetic Fields
  • Military Research
  • Personal Information Managers
  • Physics Laboratories
  • Power Spectra
  • Simulations
  • Space Systems

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Space/Atmospheric Physics.

Technology Areas

  • Microelectronics