Fine Structure of Pi2-Type Geomagnetic Pulsations
2011
An analysis of the BEAR experiment and Polar satellite data showed that several ionospheric sources could act almost simultaneously in the area of Pi2-type geomagnetic pulsations. The aim of this study is to locate these sources and determine their coherence in the narrow-frequency band of (6–10) × 10−3 Hz. By using gradient analysis methods, we revealed the local sources of oscillations coherent (phased), that allows one to treat their contributions as manifestations of the fine structure of the field of Pi2 pulsations.
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