Figure 8

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PFSS extrapolated magnetic field lines overlaid on the SWAP (top and bottom panel) image of 20 August 2017, 10:45 UT. The middle panel shows the SWAP mosaic without PFSS extrapolation. The top left panel shows PFSS extrapolation with HU STD map, and the bottom left panel with HU ZPC map (on 20 August 2017, 12:14 UT). The right column shows the zoomed-in version of the white rectangle on the left panels.
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