Propagation and Resonance Parameters of the Earth-Ionosphere Cavity - Spherical Versus Planar Stratification of the Ionosphere.
Abstract
In treating ELF wave propagation in the Earth-Ionosphere cavity, the flat earth approximation may be derived from the exact equations for the spherical cavity by introducing a second order or Debye approximation for the spherical Hankel functions. In the frequency range 3 to 30 Hz, however, the assumed conditions for the Debye approximation are not satisfied. For this reason an exact evaluation of the spherical Hankel functions is used to study the effects of the flat earth approximation on various propagation and resonance parameters. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 15, 1972
- Accession Number
- AD0755391
Entities
People
- Anh Tran
- Charles Polk
Organizations
- University of Rhode Island