Determining the boundaries of the auroral oval from CHAMP field-aligned current signatures – Part 1

In this paper we present the first statistical study on auroral oval boundaries derived from small- and medium-scale field-aligned currents (FACs, < 150 km). The dynamics of both the equatorward and poleward boundaries is deduced from 10 years of CHAMP (CHAllenging Minisatellite Payload) magne...

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Bibliographic Details
Main Authors: C. Xiong, H. Lühr, H. Wang, M. G. Johnsen
Format: Article
Language:English
Published: Copernicus Publications 2014-06-01
Series:Annales Geophysicae
Online Access:https://www.ann-geophys.net/32/609/2014/angeo-32-609-2014.pdf