EVALUATION OF AURORAL PROPAGATION FACTORS: TRANSMISSION LOSS PHASE. PART I. SYSTEM-LOSS BEHAVIOR AND PREDICTION ON SOME HIGH-FREQUENCY ARCTIC PATHS

Abstract

Studies of high-frequency transmission loss were made on a propagation path along the auroral zone, across the auroral zone and across part of the Polar Cap and curves of its diurnal behavior were drawn. Attempts made to obtain correction factors to apply to predictions of transmission loss by standard methods for non-auroral paths gave results for the cases studied but revealed great difficulty of interpretation because of lack of knowledge of moding and insufficiently precise knowledge of such parameters as equivalent reflection height. Studies of transmission loss during disturbances showed a variety of effects. The effect of proton events upon a Polar Cap path were not as conspicuous as might be expected, partially because they occurred at times when auroral disturbances spread over the Cap.

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Document Details

Document Type
Technical Report
Publication Date
Feb 15, 1962
Accession Number
AD0273778

Entities

People

  • R. Silberstein

Organizations

  • National Institute of Standards and Technology

Tags

DTIC Thesaurus Topics

  • Amplitude Modulation
  • Angle Of Arrival
  • Charged Particles
  • Diurnal Variations
  • Frequency
  • Generators
  • Geometry
  • Grazing Angles
  • Ionosphere
  • Measurement
  • Polar Cap
  • Radio Waves
  • Regions
  • Shielding
  • Signal Generators
  • Test And Evaluation
  • Transmission Loss

Readers

  • Space/Atmospheric Physics.
  • Theoretical Analysis.