Ionospheric Modification Experiments with Satellite-Borne and Ground-Based Transmitters,

Abstract

A research program is outlined to investigate the nonlinear VLF propagation and interaction with ionospheric plasmas with the satellite-borne and ground-based transmitters. Coordinated space and ground-based ionospheric modification experiments have been planned to study nonlinear propagation and mode conversion of VLF waves into lower hybrid waves in the presence of HF heater created ionospheric irregularities. Space experiments with the mother (ACTIVE)-daughter (CZAK) satellites are also discussed to examine the excitation of parametric instability by powerful VLF waves. Proposed ground-based radar, optical, and VLF measurements can provide effective diagnoses of the induced ionospheric effects. It is expected that electron acceleration caused by the lower hybrid waves will produce intense airglow emissions. In addition, a broad height distribution of enhanced plasma lines is also expected for radars to detect.

Document Details

Document Type
Technical Report
Publication Date
May 03, 1990
Accession Number
ADP006324

Entities

People

  • Min‐Cheol Lee

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Artificial Satellites
  • Conversion
  • Electrons
  • Emission
  • Excitation
  • Ground Based
  • Instability
  • Ionosphere
  • Measurement
  • Parametric Instability
  • Transmitters

Fields of Study

  • Environmental science

Readers

  • Astronomy and Astrophysics.
  • Space/Atmospheric Physics.

Technology Areas

  • Microelectronics
  • Space