What do the maps show? These maps show the average amount of water which evaporates from an open pan each month, season and annually. Evaporation is measured by the use of a class A evaporation pan.

What do the maps show? Evapotranspiration (ET) is a collective term for the transfer of water, as water vapour, to the atmosphere from both vegetated and un-vegetated land surfaces. It is affected by ...