Fig. 4: December–February BSS values for different AR frequency levels in the northern winter in the SPEAR model for week-2 and week-3 lead times.
From: Subseasonal-to-seasonal (S2S) prediction of atmospheric rivers in the Northern Winter
a Level-1, (b). Level-2, (c). Level-3 for week-2 lead time, and (d). Level-1, (e). Level-2, (f). Level-3 for week-3 lead time.
