1. A simple actual evapotranspiration model, which is an extension of Penman and consistent with the complementary approach, was used to simulate evaporation atop the pile.

2. Penman, Sharon HERE BE DRAGONS (2002) We sat by the window, watching the rain sliding down the glass and Blurring the traffic on the road outside

3. Weekly evaporation values taken from a Class A pan are regressed against the Penman values and the regression coefficient of 0.8 is suggested as appropriate weighting for pan values in order to obtain actual rates.