Fig. 2From: Auroral streamer and its role in driving wave-like pre-onset auroraOverview of THEMIS-A measurements between 08:20 UT and 08:50 UT. a Ion bulk flow components in GSM coordinates, b vector magnetic field components in GSM coordinates, c ion differential energy flux, and d auroral keogram of FSIM station. The two dashed vertical red lines indicate two auroral intensificationsBack to article page