Fig. 9
From: Update of global maps of Alisov’s climate classification
Regions with dry and moist air masses (shading) obtained by subdividing each air mass zone (Fig. 5) into two clusters, and surface precipitation greater than 3 mm day−1 (white contour) in the (a) O–M half-year and (b) A–S half-year. The contour interval is 3 mm day−1. The blank areas mean the same as in Fig. 5. Td: Tropical dry, Tm: Tropical moist, Sd: Subtropical dry, Sm: Subtropical moist, Pd: Polar dry, Pm: Polar moist, Ad: Arctic/Antarctic dry, Am: Arctic/Antarctic moist