Revealing the EMIC Wave Frequency Differences in the Ionosphere via Coordinated Observations: A Case Study
Xin‐Yan Ouyang,
Chao Yue,
Yong‐Fu Wang
et al.
Abstract:We study electromagnetic ion cyclotron (EMIC) waves based on observations from the ionosphere, magnetosphere, and ground during a geomagnetic storm recovery phase on 28 August 2018. In this case, multiple ducting EMIC waves in the ionosphere show higher frequencies in the post‐midnight than those in the pre‐midnight. Ionospheric EMIC wave frequency differences in magnetic local time (MLT) are consistent with MLT frequency differences in the equatorial magnetosphere, which are mainly caused by different backgro… Show more
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