Ionospheric Reflection and Absorption Properties of Normal Modes at ELF

Abstract

As an aid to better understanding ELF propagation in the earth- ionosphere waveguide, full-wave ELF modal height gains are analyzed as regards regions of reflection and absorption. Frequencies in the Schumann and Seafarer bands are discussed for representative day/night, ambient and disturbed ionospheres. Enhancement of the earth-ionosphere waveguide attenuation due to Sporadic E layering is discussed and the origin of the enhancement clarified.

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Document Details

Document Type
Technical Report
Publication Date
Sep 15, 1977
Accession Number
ADA049778

Entities

People

  • L. R. Shockey
  • R. A. Pappert

Tags

Communities of Interest

  • Advanced Electronics
  • Counter WMD
  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Altitude
  • Attenuation
  • Department Of Defense
  • Electric Fields
  • Electrons
  • Engineering
  • Frequency
  • High Altitude
  • Ionosphere
  • Ionospheric Models
  • Losses
  • Low Altitude
  • Magnetic Fields
  • Navy
  • Physics Laboratories
  • Radiation
  • Radio Waves

Fields of Study

  • Environmental science

Readers

  • Space/Atmospheric Physics.
  • Wave Propagation and Nonlinear Chaotic Dynamics.