. Seasonal bias (V6 2 V4) of oceanic rain rates for the 20-yr period. Grids with less than
50% of the samples (30 months) are excluded. Grids with biases of ,0.25 mm day21 and
missing grids are colored gray. Here, DJF indicates December–February, MAM is March–
May, JJA is June–August, and SON is September–November.