Fig. 4
Context map of magnetic field strength from inversion of SDO/HMI data taken from same AR on August 18, 2011 at 09:12 UT. Sites of three EBs under study are marked by short white double lines, direction of terrestrial north is given by arrow (upper left corner). Solar north is 17° (=P) counterclockwise to terrestrial north. Black “+” and “−” signs give field polarity, white contours outline inversions of field polarity in LOS reference frame.
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