Physics – Geophysics
Scientific paper
Oct 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jgr....90.9905g&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 90, Oct. 1, 1985, p. 9905-9909.
Physics
Geophysics
10
Geomagnetic Micropulsations, Midlatitude Atmosphere, Phase Velocity, Polarization Characteristics, Azimuth, Elliptical Polarization, Phase Shift
Scientific paper
Polarization and phase characteristics of mid-latitude Pi 2 pulsations are studied using the Air Force Geophysics Laboratory Magnetometer Network. From the analysis of 55 Pi 2 events it is concluded that the sense of apparent phase velocity and the sense of polarization are related as follows: Westward phase velocity is associated with left-handed polarization, while eastward phase velocity coincides with right-handed polarization. Phase changes per degree longitude as determined by the D component are larger than those computed from the H component. These results are compared to a previous analysis of nighttime pulsations. The differences in apparent phase velocities are discussed with regard to a recent model for the Pi 2 longitudinal polarization pattern.
Gelpi C.
Hughes Jeffrey W.
Singer Howard J.
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