Observing and Modelling F-Region Ionospheric Dynamics Using the (OII) 7320A Emission

Abstract

Limb-scan observations of Doppler line profiles from the (OII) lambda 7320A emission at F-Region altitudes, made with the Fabry-Perot interferometer (FPI) on the Dynamics Explorer-2 (DE-2) spacecraft, have been analyzed to provide measurements of the meridional component of the ion convection velocity along the instrument line-of-sight. The DE-2 results presented here demonstrate the first spaceborne use of the remote-sensing Doppler techniques for measurements of ionospheric convection. The FPI meridional ion drift measurements have been compared with nearly simultaneous in situ ion drift measurements from the Retarding Potential Analyzer (RPA) on DE 2. Once allowance is made for the temporal lag between the in situ and remote measurements, the results from the two techniques are found to be in good agreement, within specified experimental errors, giving confidence in the FPI measurements

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1992
Accession Number
ADA265407

Entities

People

  • Stephen S. Carr

Organizations

  • University of Michigan

Tags

Communities of Interest

  • Air Platforms
  • Autonomy
  • Energy and Power Technologies
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Artificial Satellites
  • Birds
  • Boltzmann Equation
  • Electromagnetic Metamaterials
  • Electromagnetic Scattering
  • Electron Density
  • Geometry
  • Grids
  • Heat Energy
  • Ionization
  • Measurement
  • Optics
  • Quantum Yields
  • Scattering
  • Spacecraft Orbits
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Environmental science
  • Physics

Readers

  • Astronomy/Astrophysics
  • Atmospheric Remote Sensing.
  • Radar Systems Engineering.

Technology Areas

  • Space
  • Space - Hall-Effect Thruster