Accession Number : AD0661284

Title :   PROPAGATION CHARACTERISTICS OF MICROPULSATIONS.

Descriptive Note : Final rept.,

Corporate Author : TEXAS UNIV AUSTIN ELECTRICAL ENGINEERING RESEARCH LAB

Personal Author(s) : Bloomquist,M. G. ; Smith,H. W. ; Bostick,F. X. , Jr. ; Ames,Leon A. ; Orange,Arnold

Report Date : 01 AUG 1967

Pagination or Media Count : 166

Abstract : Simultaneous earth current measurements were made during August and September, 1965 at Ashland, Maine; Huancayo, Peru; Dillingham Air Force Base, Hawaii; and Manila, Philippines. The purpose of the measurements was to provide accurate, reliable data for a study of the worldwide propagation of micropulsations. A method was developed to estimate, by computerized analysis of the data, the difference in arrival time of coherent energy (group delay) at the respective stations. The accuracy limits imposed upon these measurements by the equipment and local geologic conditions have been investigated. Confidence levels of coherence were examined. A method of measuring differences between stations of polarization sense and direction has been derived.

Descriptors :   (*EXTREMELY LOW FREQUENCY, PROPAGATION), (*GEOMAGNETISM, SCIENTIFIC RESEARCH), MAINE, PERU, HAWAII, PHILIPPINES, DIURNAL VARIATIONS, ELECTRIC FIELDS, GEOPHYSICS, DIGITAL SYSTEMS, DATA PROCESSING, TELLURIC CURRENTS

Subject Categories : Atmospheric Physics
      Geomagnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE