Accession Number : AD0614670

Title :   STATISTICS OF E-REGION DRIFT AT PUERTO RICO REDUCED BY THE 'SIMILAR FADE' METHOD.

Descriptive Note : Annual summary rept. for 1963-1964,

Corporate Author : IONOSPHAREN-INSTITUT BREISACH (GERMANY)

Personal Author(s) : Harnischmacher,E.

Report Date : 15 NOV 1964

Pagination or Media Count : 50

Abstract : Three antennae records of E-region echoes obtained at the University of Puerto Rico in 1954 . . . 57 have been evaluated by Harnischmacher's tabulation method. This is a 'similar fade' method insofar as the drift is found from the time differences between corresponding fades on the three traces. However, these time differences are only read with a limited number of steps as entire multiples of a minimum difference, viz. 1/10 sec. The corresponding apparent drift direction and velocity are easily read from a table. As only that drift component is so found which is perpendicular to the 'fading crests', individual determinations are not considered to be significant at all. Median values of drift direction and velocity from about a dozen individual fades taken out of a period of 5 to 10 min are used as entries for the statistics presented in this report.

Descriptors :   (*ATMOSPHERIC SOUNDING, ELECTROMAGNETIC WAVE REFLECTIONS), (*ELECTROMAGNETIC WAVE REFLECTIONS, ATMOSPHERIC SOUNDING), (*IONOSPHERE, ATMOSPHERIC SOUNDING), ELECTRON DENSITY, DRIFT, PUERTO RICO, STATISTICAL ANALYSIS, GRAPHICS

Distribution Statement : APPROVED FOR PUBLIC RELEASE