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Simultaneous ground-based and satellite observations of Pc5 geomagnetic pulsations: A case study using multipoint measurements

Balogh, A.; Sung, S. -K.; Kim, K. -H. +5 more

Pc5 pulsations with a latitude-independent frequency of ∼2.8 mHz (period ∼6 min) were observed with ground-based magnetometers in the morning sector (0700–1000 local time) from 0730 to 0810 UT, April 29, 2001. The pulsations exhibited an amplitude peak and a ∼180° phase change at ∼67° geomagnetic latitude. A vortex structure of the equivalent iono…