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Giant pulsations on the afternoonside: Geostationary satellite and ground observations

Giant pulsations (Pgs) are a special class of oscillations recognized in ground magnetometer records as exhibiting highly regular sinusoidal waveforms in the east-west component with periods around 100s. Previous statistical studies showed that Pgs occur almost exclusively on the morningside with peak occurrence in the postmidnight sector. In this paper, we present observations of Pgs extending to the afternoonside, using data from the GOES13 and 15 geostationary satellites and multiple ground magnetometers located in North ...

Motoba, Tetsuo; Takahashi, Kazue; Rodriguez, Juan; Russell, Christopher;

YEAR: 2015     DOI: 10.1002/2015JA021592

giant pulsations; ground-space conjunction; wave-particle interactions