Accession Number : AD0617240

Title :   MULTIPHASE PERIODIC VERY-LOW-FREQUENCY EMISSIONS.

Descriptive Note : Revised ed.,

Corporate Author : STANFORD UNIV CALIF STANFORD ELECTRONICS LABS

Personal Author(s) : Brice,Neil

Report Date : 17 SEP 1964

Pagination or Media Count : 9

Abstract : When periodic very-low-frequency (VLF) emissions of more than one set are observed concurrently (multiphase emissions) the observation of three sets symmetrically spaced is surprisingly frequent. Evidence is presented which suggests that two sets represent a transient situation, and that the strength of one emission may depend on the strength of, and the elasped time since the preceding emission. The data are interpreted as evidence of a relaxation phenomenon in the generation of discrete VLF emissions, and a qualitative explanation of the stability of symmetrical three-phase emission is given. (Author)

Descriptors :   (*ATMOSPHERICS, VERY LOW FREQUENCY), (*RADIO WAVES, METEOROLOGICAL PHENOMENA), (*METEOROLOGICAL PHENOMENA, RADIO WAVES), WHISTLERS, MAGNETIC RECORDING SYSTEMS, RADIOFREQUENCY SPECTROSCOPY, SPECTRUM ANALYZERS, GEOPHYSICS

Distribution Statement : APPROVED FOR PUBLIC RELEASE