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Solar wind and geomagnetic (aa, Kp × 10) indices for a two solar rotation interval in August–October 2003 dominated by a sequence of corotating high-speed streams with peak speeds ~600–800 km s−1. Geomagnetic activity frequently reached G1–G3 levels (bottom panel). The solar wind parameters shown are: the magnetic field intensity, polar and azimuthal angles (GSE coordinates), proton temperature with expected temperature (Richardson & Cane 1995) in red; density and solar wind speed.
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