Computer Simulation of Gradient Drift Instability Processes in Operation Avefria

Abstract

Numerically equations of motion are solved for the evolution of a one level, two dimensional F region ionospheric plasma cloud with five different ratios of cloud to background integrated Pedersen conductivity. The simulations show that (1) physically small clouds striate due to the gradient drift instability more rapidly than large clouds, and (2) there exists a minimum striation onset time as a function of the Pedersen conductivity ratio. Observation (1) is in agreement with the rapid striation development exhibited by the physically small Avefria barium cloud releases, relative to the large Secede or STRESS type releases.

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Document Details

Document Type
Technical Report
Publication Date
Nov 15, 1979
Accession Number
ADA077668

Entities

People

  • B. E. Mcdonald
  • Michael J. Keskinen
  • Sidney L. Ossakow
  • Steven T.P. Zalesak

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Atmospheric Sciences
  • Computer Science
  • Computer Simulations
  • Conductivity
  • Department Of Defense
  • Diffusion Coefficient
  • Engineering
  • Equations
  • Instability
  • Magnetic Fields
  • Physics Laboratories
  • Security
  • Simulations
  • Space Systems
  • Striations
  • Systems Engineering

Readers

  • Astronomy and Astrophysics.
  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Plasma Physics.