abstract = "genetic algorithm (GA) was employed to detect the most
important variables for estimating ETo among mean
temperature (Tmean), maximum temperature (Tmax),
minimum temperature (Tmin), sunshine hours (n),
relative humidity (RH), and wind speed (WS). The
results show that Tmean and WS are the most important
meteorological variables to model evapotranspiration in
Iran. Then, we selected gene expression programming
(GEP) to model ETo based on Tmean and WS historical
data. The results indicate that the GEP has good
performance for semi-arid and Mediterranean climates
compared to very humid and some arid regions. In
addition, GEP is an effective solution when there is
insufficient meteorological data available.",
notes = "Department of Agricultural and Biological Engineering,
Indian River Research and Education Center, University
of Florida, Fort Pierce,
USA