Seasonal cycle of water balance in major river basins, 1979-1993 mean (3)

Calculated from river discharge and "ERA15" meteorolgical data
Chang Jiang (Yangtze) ---------- Mississippi ---------- Parana (La Plata)

(S is shown as relative values, whose minimum being zero.)
In mid-lat. East Asia & subtropical South America, S takes maximum in autumn
In mid-latitude North America, S takes maximum in spring.
(In North America, summer Precipitation < Evaporation + Runoff.)