qThe
potential evaporation is defined as the maximum possible evapotranspiration
for the prevailing atmospheric condition.
qPE
is the amount of moisture the atmosphere demands based upon its energy
status.
qIf
there is a higher energy level in the atmosphere, e.g. very high temperature
due to intense solar radiation, it demands more moisture from
the Earth’s surface.
qIf
PE > available evapotranspiration č leads to dry
surface
q PE < available evapotranspiration
č
leads to runoff.
q