Heat and moisture transfer about pan evaporimeter

Routine measurements with pan evaporimeters at Griffith, N.S.W., have been related to radiation-intensity values estimated from formulae, and to the usual meteorological records of air temperature and vapour pressure. These data are too crude for accurate estimation of the resistances to the flows of heat and water vapour from an evaporimeter. However, use of the data illustrates a procedure for deriving values for the resistances. The approximate values obtained do not indicate that buoyancy appreciably promotes heat transfer from the water surface.