The WIND-HAARP Experiment: Initial Results of High Power Radiowave Interactions with Space Plasmas

Abstract

Results from the first science experiment with the new HF Active Auroral Research Program (HAARP) facility in Alaska are reported. The initial experiments involved transmission of high frequency waves from HAARP to the NASA/WIND satellite. The objective was to investigate the effects of space plasmas on high power (approx. 300 kW) radiowave transmission from the ground to high altitudes in the magnetosphere. The data acquired suggest that structured space plasmas along the propagation path impose a power law spectrum of intensity fluctuations on the transmitted waves, resembling that of scintillation interactions. However, because the transmitted wave frequencies are near ionospheric plasma frequencies, other types of wave-plasma interactions may occur. The measurements can provide an important new diagnostic tool for space plasmas.

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Document Details

Document Type
Technical Report
Publication Date
Nov 10, 1997
Accession Number
ADA332515

Entities

People

  • C. L. Siefring
  • E. Kennedy
  • M. Keskinen
  • P. Rodriguez
  • S. Basu

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Altitude
  • Antennas
  • Artificial Satellites
  • Detection
  • Frequency
  • High Altitude
  • High Latitudes
  • Intensity
  • Measurement
  • Military Research
  • Research Facilities
  • Scattering
  • Space Plasmas
  • Spacecraft
  • Spectra

Fields of Study

  • Physics

Readers

  • Astronomy and Astrophysics.
  • Space/Atmospheric Physics.
  • Theoretical Analysis.

Technology Areas

  • Space
  • Space - Hall-Effect Thruster