“…(1966). Since then, data from magnetometers on several satellite missions such as Dynamics Explorer 2 (Weimer, 2001), Orsted/Magsat (Papitashvili et al., 2002), DMSP (Ohtani et al., 2005), and Challenging Minisatellite Payload (CHAMP) (Laundal, Finlay, et al., 2018; Laundal, Reistad, et al., 2018) have provided crucial insights into the nature of solar wind‐magnetosphere‐ionosphere coupling (e.g., Iijima & Potemra, 1976a; Lysak, 1990; Milan et al., 2018). For example, the large‐scale structure and magnitude of FACs are strongly controlled by the interplanetary magnetic field (IMF) and season (e.g., Fujii et al., 1981; Iijima & Potemra, 1976a, 1978; Potemra, 1985).…”