Accession Number:

ADA143239

Title:

HF Prediction Using Adiabatic Invariant Theory,

Descriptive Note:

Corporate Author:

ROME AIR DEVELOPMENT CENTER GRIFFISS AFB NY

Personal Author(s):

Report Date:

1984-03-01

Pagination or Media Count:

38.0

Abstract:

Gurevich and Tsedilinas adiabatic invariant theory for the potential well model of ionospheric HF radiowave propagation is reviewed and applied to a specific round-the-world RTW propagation path. Propagation modes ducting, ground-hop and chordal are qualitatively deduced from charts of the adiabatic invariants IF, IFE, IFEE and I1vs path length. Quantitative results are presented in the form of a simulated RTW ionogram between an elevated source and receiver. In support of RADCs orbiting receiver experiment, the robustness of global HF propagation is displayed in the form of synoptic maps of IE, IF, IFE and I1, using the IONCAP medium model ionosphere. These maps show the abundance of various propagation modes on a world-wide basis. Author

Subject Categories:

  • Atmospheric Physics
  • Plasma Physics and Magnetohydrodynamics
  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE