a) SDO/HMI vertical component of the magnetic field (B_z). The projection effect is removed. b) SDO/HMI vector magnetic field with the 180° ambiguity removed. c)–g) Distribution of the vertical electric current density j_z averaged over 12 min at different times and observed by SDO/HMI. The middle time of the observations is indicated at the top of each panel. Gray/black lines mark the contour levels of the positive/negative polarities. The contour levels of B_z are –1200, –900, –600, 300, and 600 G. The color bar of j_z is shown on the right side. h) Distribution of j_z observed by THEMIS/MTR centered at 09:42 UT. The scan duration is about 16 min in this field of view. The contour levels of B_z are –882, –661, –440, 110, and 220 G, which are at the same percentage of their minimum (for the negative contours) and maximum (for the positive contours) values as that in Fig. 4g.