Magic Mode: Investigations of Artificial Stimulation of ULF Waves in the Ionosphere and Magnetosphere.
Abstract
The report describes an investigation of the potential usefulness of the ultra-low-frequency (ULF) band for communications with deeply submerged reception terminals. The discussion begins with a comprehensive review of present knowledge about ULF propagation. Present understanding of ULF propagation modes (based on observations of naturally occurring geomagnetic micropulsations) is summarized, and those features which are of importance to potential communications systems are discussed. Emphasis is then placed on the study of potential ULF generation mechanisms between 0.2 and 5 Hz which would benefit from the naturally occurring magnetospheric amplification process that is observed to occur in that frequency band. Two possible source regions are considered for the artificial generation of ULF waves: the ionospheric dynamo and the magnetospheric proton belt. (Author Modified Abstract)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 12, 1973
- Accession Number
- AD0759012
Entities
People
- Edwin L. Althouse
- John R. Davis
- John W. Willis
Organizations
- United States Naval Research Laboratory