1977•Unpublished venueRequires access

Ionospheric Reflection and Absorption Properties of Normal Modes at ELF

R. A. Pappert, Linda Shockey

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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Available abstract

Key concepts: Schumann resonances, Ionosphere, Earth–ionosphere waveguide, Reflection (computer programming), Absorption (acoustics), Attenuation, Layering, Waveguide