Ganges Brahmaputra River Basin Evaporation for January 1985 - 1999

Temperature is an important driver of evaporation within the basin of the Ganges-Brahmaputra river and in general the period April to July receives the highest temperatures of the year. In April the lower reaches of the basin start to see higher evaporation estimates as temperatures start to increase. In May there is a East West split where the arid western region has lower evaporation estimates compared to western regions, mainly driven by rising monthly temperatures. The period July to August have warmer temperatures coupled with higher soil moisture which results in higher evaporation estimates over the whole basin. Average El Nino winter moths experience warmer conditions and this is one reason for the higher evaporation estimates for Dec. 1989.

Evaporation Legend (mm/month)

Bargraph referencing the colours on the evaporation maps.

Other Ganges Brahmaputra Maps

Ganges Brahmaputra Evaporation Maps