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Authors: Wei Dong, Yu Yiqun, and He Fei
Title: The Magnetospheric Driving Source of Double‐Peak Subauroral Ion Drifts: Double Ring Current Pressure Peaks
Abstract: Double‐peak subauroral ion drifts (DSAIDs), characterized by two high‐speed flow channels, is a newly identified flow structure in the subauroral ionosphere. He et al. (2016, proposed that two region 2 field‐aligned currents (R2 FACs) might cause the DSAIDs. However, the underlying physical process that drives the double R2 FACs is unknown. This study reports a DSAIDs event and reveals its magnetospheric drivers. Defense Meteorological Satellite Program F18 satellite observed DSAIDs in the duskside subauroral region, which corresponded well to two low‐density troughs and two R2 FACs. The Van Allen Probe B demonstrated that intense substorm ion injections recurrently occurred prior to the formation of DSAIDs, suggesting a potential magnetospheri. . .
Date: 06/2019 Publisher: Geophysical Research Letters DOI: 10.1029/2019GL083186 Available at:
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Authors: He Fei, Zhang Xiao-Xin, Chen Bo, and Fok Mei-Ching
Title: Determination of the Earth's plasmapause location from the CE-3 EUVC images
Abstract: The Moon-based Extreme Ultraviolet Camera (EUVC) aboard China's Chang'e-3 (CE-3) mission has successfully imaged the entire Earth's plasmasphere for the first time from the side views on lunar surface. An EUVC image on 21 April 2014 is used in this study to demonstrate the characteristics and configurations of the Moon-based EUV imaging and to illustrate the determination algorithm of the plasmapause locations on the magnetic equator. The plasmapause locations determined from all the available EUVC images with the Minimum L Algorithm are quantitatively compared with those extracted from in situ observations (Defense Meteorological Satellite Program, Time History of Events and Macroscale Interactions during Substorms, and Radiation Belt Storm Probes). Excellent agreement between the determi. . .
Date: 01/2016 Publisher: Journal of Geophysical Research: Space Physics DOI: 10.1002/2015JA021863 Available at:
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