Image Details
Caption: Figure 6.
Time series of the monthly number of unique BMRs for (a) SL, (b) LT, and (c) DP classes. The gray shaded region represents the international smoothed sunspot number (scaled to BMR counts for better representation) from WDC-SILSO, Royal Observatory of Belgium, Brussels. Here, vertical strips represent the data gaps in the MDI magnetograms.
© 2023. The Author(s). Published by the American Astronomical Society.