Table 2

Geometry-based features: 16 total for each magnetogram. All distances were measured in terms of pixels for SDO HMI magnetogram images with a pixel resolution of one arcsecond (1 arcsecond = 725 km).

Name Units # of features
Total number of positive (negative) clusters integer 2
Size of largest positive (negative) clusters arcseconds 2
Interaction factor of MIP G2/arcseconds2 1
COM distance between positive and negative elements of MIP arcseconds 1
Smallest distance between elements of MIP arcseconds 1
COM distance to smallest distance ratio arcseconds 1
Total magnetic flux of each element of MIP G 2
Size of each element of MIP arcseconds2 2
Total magnetic flux per unit area of each element of MIP G/arcseconds2 2
Total magnetic flux of largest elements in the magnetogram G 2

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