Physics
Scientific paper
Jun 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986p%26ss...34..519a&link_type=abstract
Planetary and Space Science (ISSN 0032-0633), vol. 34, June 1986, p. 519-536. Research supported by the University of Newcastle.
Physics
19
Diurnal Variations, Geomagnetic Micropulsations, Spatial Distribution, Tropical Regions, Australia, Data Processing, Ground Stations, Magnetometers, Polarization (Waves), Sonograms, Spectrum Analysis
Scientific paper
The spatial and temporal characteristics of Pc3 pulsations over a longitudinal range of 17 deg at L = 1.8-2.7 were studied, using Pc3 data collected over a 6-month period by an array of four induction coil magnetometer stations in Southeast Australia. Interstation phase variations and polarization characteristics have been investigated in detail for 10 selected individual days common to all four stations. The data on diurnal variations in the interstation phase indicate that Pc3 waves propagate away from local noon towards the night time, with left-hand polarization and Ne major axis azimuth directions in the morning and with right-hand polarization and NW azimuth directions in the afternoon. Apparent meridional propagation is always away from the equator from north to south with an absolute value of m(x,y) of less than 12. These properties are consistent with Pc3 wave generation by a field line resonance situated south of the network at L greater than 3.
Ansari I. A.
Fraser Brian J.
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