Analysis of the relationship between LF reflection coefficients and D-region profiles.

Details

• Personal Author:
  Jones, R. Michael
• Corporate Authors:
  Wave Propagation Laboratory
• NOAA Program & Office:
  OAR (Oceanic and Atmospheric Research)
• Description:
  In calculating D region electron density profiles from LF reflection coefficient measurements, it is important to order those measurements according to depth of penetration into the ionosphere. A ray theory analysis, a set of full-wave reflection coefficient calculations, and reflection coefficient measurements support the approximation that those waves with the larger equivalent frequency f cos i (where f is the wave frequency and iQ is the angle o? incidence on the ionosphere) will
  
  penetrate further into the ionosphere. This approximation is more accurate for those waves that reflect below the height where the collision frequency equals the gyrofrequency (about 65 km at midlatitudes), where the earth's magnetic field has negligible effect.
  
  
• Keywords:
  Ionospheric Electron Density Radio Waves Ionospheric Electron Density Radio Waves
• Series:
  NOAA technical memorandum ERL WPL   29
• Document Type:
  Technical Memorandum
• License:
  https://creativecommons.org/publicdomain/zero/1.0/
• Rights Information:
  CC0 Public Domain
• Compliance:
  Library
• Main Document Checksum:
  urn:sha256:e16858dbe250e3e066290af3b8cac5753bc9d5d20811db25c1d65fe7abf10fdd
• Download URL:
  https://repository.library.noaa.gov/view/noaa/32481/noaa_32481_DS1.pdf
• File Type:
  [PDF - 73.85 MB ]