1 - We need a cosine-weighted area map that corrects pixel area to solar surface area, so we can get the feature areas.
2 - Thresholding and LOS correction (no smoothing needed though).
3 - Extract individual features found during the IGM (Indexed Grown Mask) process.
4 - Get dB/dt by subtracting the magnetograms and then dividing by the time difference.
5 - Using the cosine-weighted area map and the dB/dt map, calculate the flux emergence rate, dΦ/dt, of each feature.
PaulJWright
commented
3 months ago
1 - We need a cosine-weighted area map that corrects pixel area to solar surface area, so we can get the feature areas. 2 - Thresholding and LOS correction (no smoothing needed though). 3 - Extract individual features found during the IGM (Indexed Grown Mask) process. 4 - Get dB/dt by subtracting the magnetograms and then dividing by the time difference. 5 - Using the cosine-weighted area map and the dB/dt map, calculate the flux emergence rate, dΦ/dt, of each feature.