Seasonal and latitudinal variations of Δalbedo (a,d), daytime ΔET, (b,e) and nighttime ΔET (c,f). Negative Δalbedo shows that forest has lower albedo than open land. Positive ΔET shows that forest has higher ET than open land. Latitude bars with CI out of display range are not drawn. See latitude statistics in Supplementary Tables 3 and 4.