Polarization characteristics and phase differences of Pi2 pulsations at conjugate stations |
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| Affiliation: | 1. Department of Mechanical and Aerospace Engineering, University of Miami, Coral Gables, FL 33146, USA;2. Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA;1. Faculty of Electrical Engineering and Information Technology, Leipzig University of Applied Sciences, Germany;2. Research on Development and Control of Distributed Applications ReDCAD, National Engineering School of Sfax, University of Sfax, Tunisia;3. Higher Institute of Sousse (ISSAT Sousse), University of Sousse, Tunisia |
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| Abstract: | Spectral analysis was carried out on Pi2 pulsations occurring simultaneously at the conjugate stations St Anthony, Newfoundland and Halley Bay, Antarctica during the second half of 1976. For the strongest lines in each spectrum, the ellipticities and azimuths of the horizontal polarization ellipses at the two stations were approximately equal and opposite in sign generally consistent with the stations being conjugate, but there was noticeable scatter. When the differences in phase of the components between the stations were examined, they were found to be about 10° for the H-component and about 170° for the D (consistent with concept of an odd-mode oscillation of the field line) until about middle-late October. After this time, larger variations in the phase differences and decrease in coherence between the stations occurred and it is suggested that is a result of the presence of an ionosphere E-layer at Halley Bay throughout the night during Southern summer. |
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