Accession Number : ADA140509
Title : A High Frequency Radio Technique for Measuring Plasma Drifts in the Ionosphere.
Descriptive Note : Technical rept.,
Corporate Author : LOWELL UNIV MA CENTER FOR ATMOSPHERIC RESEARCH
Personal Author(s) : Dozois,C G
PDF Url : ADA140509
Report Date : Jul 1983
Pagination or Media Count : 260
Abstract : A technique is developed for investigating the dynamics of the auroral ionosphere through the interpretation of high-frequency radio-wave observations made at Goose Bay, Labrador. Spectral analysis of ionospheric reflections received at four spaced antennas identifies each echo by its Doppler shift, making it possible to locate several simultaneous reflection points with a limited antenna array. The radial velocity components of the reflection areas are determined from the Doppler shifts, and a resultant plasma-drift velocity is calculated from these components. The analysis technique is first tested with computer-simulated drift data; then calculations using Goose Bay data from night observations of the F region verify the technique by showing a westerly drift in late evening, shifting to an easterly drift around midnight, in agreement with F-region drift measurements made by other observational techniques.
Descriptors : *IONOSPHERE, *PLASMAS(PHYSICS), DRIFT, MEASUREMENT, ATMOSPHERIC SOUNDING, HIGH FREQUENCY, IONOSONDES, DIGITAL SYSTEMS, SKY, MAPPING, COMPUTER PROGRAMS, THESES
Subject Categories : Atmospheric Physics
Distribution Statement : APPROVED FOR PUBLIC RELEASE