Fig. 12.
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Closed coronal loop of NOAA AR 2678 traced in 3D corona coordinates by stereoscopic (red) and LFFF (black) methods. We computed here the inclination δEUV between the vertical to the solar surface (blue) and the tangential line at the studied points for SDO/AIA loops using stereoscopic methods and we found a close similarity with the δM computed using the LFFF extrapolations.
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