This bulletin describes the results of a modelling study of evaporation from farm dams and a 'ready reckoner' in the form of a spreadsheet that: Calculates the cost of installing an evaporation reduction sys

Work commissioned by NPSI and undertaken by Matthew Hipsey from the University of Western Australia shows that night time evaporation is significant.

Right now, it is very difficult to accurately measure the water losses from evaporation on farm dams but a recent scoping study funded by the National Program for Sustainable Irrigation estimated the loss is as high a

As much as 40% of water stored in a farm dam can be lost through evaporation, depending on the depth of the dam and its surface area.

Evaporation reduction from farm dams in Australia is regarded as one of the few areas where there are real water savings to be made.