Main Article Content
2006 at the Italian/French base of Concordia at Dome C, close to the geomagnetic pole, and at the Italian base
«Mario Zucchelli» at Terra Nova Bay, also located in the polar cap, but at lower latitude. Our analysis shows that
high latitude ULF pulsation power is largely controlled by the solar wind speed. At Terra Nova Bay the power
shows a maximum at local noon, clearly related to cusp and closed field lines phenomena. At few mHz, the polarization
pattern indicates field line resonances driven, just equatorward with respect to the station, by waves
propagating tailward; the polarization of higher frequency pulsations, mostly originated from interplanetary upstream
waves, suggests waves propagating sunward from the night sector. At Dome C the wave power shows a
small enhancement in the local morning, more pronounced for mid-frequency pulsations; the polarization pattern,
at all frequencies, appears to indicate waves propagating sunward from the night sector, suggesting a propagation
channel to the ground via the magnetotail lobes.
No Permission Required
Istituto Nazionale di Geofisica e Vulcanologia applies the Creative Commons Attribution License (CCAL) to all works we publish.
Under the CCAL, authors retain ownership of the copyright for their article, but authors allow anyone to download, reuse, reprint, modify, distribute, so long as the original authors and source are cited. No permission is required from the authors or the publishers.