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Official Journal of the Asia Oceania Geosciences Society (AOGS)

Geoscience Letters Cover Image
Fig. 6 | Geoscience Letters

Fig. 6

From: Effects of the interplanetary magnetic field y component on the dayside aurora

Fig. 6

Schematic drawing of the ionospheric plasma flows associated with a interplanetary magnetic field (IMF) By > 0 and b IMF By < 0 (based on Cowley et al. (1991)). The dashed line in each panel delineates the open-closed magnetic flux boundary and the circled symbols represent the field-aligned current flows (upward for circles with a dot and downward for circles with a cross). The bottom row shows the field-aligned current system associated with c IMF By > 0 and d IMF By < 0 (based on Trondsen et al. 1999). The IMF By field produces a north–south potential drop across the magnetotail that drives field-aligned currents northward or southward depending on the orientation of IMF By

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