文章基本信息

标题：Studies of Geomagnetic Pulsations Using Magnetometer Data from the CHAMP Low-Earth-Orbit Satellite and Ground-Based Stations: a Review
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作者：P Sutcliffe ; D Ndiitwani ; H Lühr 等
期刊名称：Data Science Journal
电子版ISSN：1683-1470
出版年度：2015
卷号：10
DOI：10.2481/dsj.IAGA-03
语种：English
出版社：Ubiquity Press
摘要：We review research on geomagnetic pulsations carried out using magnetic field measurements from the CHAMP low-Earth-orbit (LEO) satellite and ground-based stations in South Africa and Hungary. The high quality magnetic field measurements from CHAMP made it possible to extract and clearly resolve Pi2 and Pc3 pulsations in LEO satellite data. Our analyses for nighttime Pi2 pulsations are indicative of a cavity mode resonance. However, observations of daytime Pi2 pulsation events identified in ground station data show no convincing evidence of their occurrence in CHAMP data. We also studied low-latitude Pc3 pulsations and found that different types of field line resonant structure occur, namely discrete frequencies driven by a narrow band source and L-dependent frequencies driven by a broad band source.
关键词：Geomagnetic pulsations; LEO satellite; Magnetometer data; Pi2 pulsation; Pc3 pulsation; Field line resonance