Multiscale Modeling of Ionospheric Irregularities

Abstract

Developed novel multi-nesting, time splitting and implicit relaxation techniques for coupled three-dimensional mesoscale/microscale ionospheric dynamics; resolved secondary Rayleigh-Taylor instabilities and characterized turbulent dynamics of plasma bubbles/ionospheric layers. Created methods based on Lagrangian coherent structures delineating formation of scintillation producing irregularities, discovered fine scale irregularity patterns/plasma pancakes in ionospheric flows; described non-Gaussian spatially varying statistics and characterized patchy inhomogeneous dynamics of ionospheric density layers. Physics based predictive modeling and simulations of coupled neutral-plasma interactions (ions, electrons and neutral winds) enable forecasting of mesoscale/micro-scale dynamics for a range of altitudes that encompass the ionospheric E and F layers.

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Document Details

Document Type
Technical Report
Publication Date
Oct 22, 2014
Accession Number
ADA612205

Entities

People

  • Alex Mahalov

Organizations

  • Arizona State University

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Charged Particles
  • Climate Change
  • Computational Fluid Dynamics
  • Computational Science
  • Computer Simulations
  • Crystal Lattice Vibrations
  • Differential Equations
  • Electron Density
  • Electron Gas
  • Fluid Dynamics
  • Grids
  • Multiscale Modeling
  • Space Weather
  • Three Dimensional
  • Turbulence
  • Turbulent Mixing
  • Wave Propagation

Fields of Study

  • Environmental science
  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Computational Fluid Dynamics (CFD)
  • Space/Atmospheric Physics.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene