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Geomagnetic indices and interplanetary parameters covering the wave event: (a) SymH index on 19-28 January 2016; (b) AE (red), AU (green), and AL (blue) indices, (c) OMNI/WIND IMF Bx, By and Bz components in the Geocentric Solar Magnetospheric coordinate system, (d) solar wind speed, (e) solar wind proton density, and (f) solar wind dynamic pressure on 24-27 January 2016. The cyan shaded regions identify the time intervals of interest.
