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Earth, Planets and Space
Fig. 2 | Earth, Planets and Space

Fig. 2

From: Relationship between solar wind dynamic pressure and amplitude of geomagnetic sudden commencement (SC)

Fig. 2

Left Local time variation of averaged amplitude of the main impulse of SCs observed at Memanbetsu (geomagnetic latitude = 35.1°) for summer (upper panel) and winter (lower panel) season. Right Calculated local time variation of magnetic fields at 35° geomagnetic latitude due to a pair of field-aligned currents (FACs) and the FAC-induced ionospheric currents for summer (upper panel) and winter (lower panel) (Araki et al. 2009)

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