2022
DOI: 10.5194/egusphere-egu22-10242
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Magnetospheric Source of a Transpolar Auroral Arc: Coupled SWMF Simulation results

Abstract: <p>We present the first coupled MHD-ring current simulation results that produce the global transpolar auroral arc phenomenon. We examine a unique observation of a midnight transpolar auroral arc that is produced during compressed magnetosphere conditions and persistent into an extended interval of southward IMF and substorm onset. The IMAGE satellite FUV-WIC camera observed the transpolar auroral arc in the southern hemisphere on 15 May 2005. The IMAGE observations show that the transpolar auror… Show more

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