Innovative Development and Application of Models for Weakly Ionized Ionospheric Plasmas

Abstract

Artificial modifications of the ionosphere through chemical releases and ionospheric heating experiments are examined with models of chemistry and transport to advance understanding of ion chemistry of the upper atmosphere. The specific releases investigated were the SF6 released of the CRRES-at-Kwajalein rocket campaign and the CO2 releases of the Red Air I program. Both the SF6 and CO2 releases experienced freezing or clustering of the molecules. This must be accounted for in the composition and airglow observations. In addition, HF heating effects in the E and F region were examined through modeling of energy deposition and resulting chemistry. NO sub x production in a HF ionospheric heater beam is estimated and compared with natural sources of NO sub x. Global effects of HF operation are very small but the local effects can be large enough to permit observable modulation to this environment.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1993
Accession Number
ADA284583

Entities

People

  • J. V. Eccles
  • James Hingst
  • Russell Armstrong

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Weapons Technologies

DTIC Thesaurus Topics

  • Chemical Reaction Properties
  • Chemical Reactions
  • Chemistry
  • Electron Density
  • Electron Energy
  • Electron Gas
  • Electrons
  • Energy Transfer
  • Environment
  • Heat Energy
  • Inorganic Chemistry
  • Ionization
  • Ionosphere
  • Measurement
  • Radio Waves
  • Thermodynamic Processes
  • Two Dimensional

Readers

  • Space/Atmospheric Physics.