Physics
Scientific paper
Jul 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998georl..25.2357b&link_type=abstract
Geophysical Research Letters, Volume 25, Issue 13, p. 2357-2360
Physics
6
Ionosphere: Ionosphere/Magnetosphere Interactions, Ionosphere: Plasma Waves And Instabilities, Magnetospheric Physics: Mhd Waves And Instabilities, Ionosphere: General Or Miscellaneous
Scientific paper
Band-limited Pc-3 pulsations were observed on one day with pulsation magnetometers, photometers and in VLF activity at South Pole and simultaneously, electric field pulsations were observed in the ionospheric cusp using the PACE HF-Radar located at Halley Station, Antarctica. The electric field pulsations were observed by the radar on open magnetic field lines, which were likely to be connected more directly to the source region (upstream of the foreshock) of the activity than the magnetic pulsations, which were observed on closed magnetic field lines. The electric field pulsations were found to have a coherence scale length of around 30-60 km, significantly less than the upper limit that can be determined from magnetometer measurements.
Arnoldy Roger L.
Baker Kile B.
Engebretson Mark J.
Rodger Alan S.
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