Geophysics Research Laboratory, University of Tokyo
Geophysics Research Laboratory, University of Tokyo
Geophysics Research Laboratory, University of Tokyo
Institute of Space and Aeronautical science, University of Tokyo
Department of Geophysics and Astronomy, University of British Columbia
Department of Physics, University of Victoria
Geomagnetic pulsations in the auroral zone through the plasma-pause were examined on the basis of IMS observation data obtained in Canada. It was shown that the geomagnetic pulsations in the daytime are reasonably accounted for in terms of HM waves propagating from outside, and that the pulsations in thedawn sector, on the other hand, are likely due to the fluctuations in the ionospheric electric currents related to the pulsating auroral precipitations. It was also shown that the wave characteristics of Pc 1 pulsations in the dusk sector are consistent with the confinement of their initial source region in a small extent, spreading through the upper ionosohenc duct.
極光帯-プラズマポーズ領域のULF波動の特性
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KJ00002477097
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概要
