Final Report,

Abstract

The general areas of research studied under this grant have dealt with the mechanisms for the generations of wave noise in connection with auroral precipitation. The largest effort has been devoted to understanding the generation of wave noise called VLF hiss. VLF hiss is radio noise in the whistler mode associated with auroral arcs. We have tried to understand the generation of this noise by the auroral electron beam and the subsequent interaction of this noise back on the auroral electrons. The major research accomplishment achieved under this grant is the development of a complete and detailed theoretical model that successfully predicts the power flux spectra of whistler noise generated by a given auroral electron beam. In addition, wave noise in other modes such as electromagnetic AKR are also generated by the auroral electron beam. These phenomena have also been investigated in the context of the theoretical model developed to study VLF hiss. Furthermore, the study of wave phenomena connected with the aurora has not been restricted solely to the ionosphere. The generation of low frequency turbulence in the magnetotail has also been examined. In the following, the details of the research conducted in each of these areas is given along with results and conclusions. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Mar 03, 1983
Accession Number
ADA125973

Entities

People

  • James E. Maggs

Organizations

  • University of California, Los Angeles

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Altitude
  • Diffusion
  • Dynamics
  • Electromagnetic Radiation
  • Electron Beams
  • Energy
  • Frequency
  • Magnetic Fields
  • Particle Beams
  • Power Levels
  • Radiation
  • Scattering
  • Solar Wind
  • Space Sciences
  • Spectra
  • Wave Phenomena
  • Wave Power

Readers

  • Pulsed Power and Plasma Physics.
  • Space/Atmospheric Physics.
  • Technical Research and Report Writing.

Technology Areas

  • Directed Energy
  • Microelectronics