Reference evapotranspiration
If data available using Fao-56 Penman-Monteith
eto( tmin, tmax, toa, w, lat, tdew, mde, radiation = NA, insolation = NA, rh = NA, data_names = NULL, time.scale = YEAR, na.rm = FALSE )
tmin |
daily minimum temperature, Celsius |
tmax |
daily maximum temperature, Celsius |
toa |
solar radiation at TOA, W/m2 |
w |
average wind, m/s |
lat |
latitude, degree |
tdew |
dew point, Celsius |
mde |
digital elevation model, m |
radiation |
net radiation, J/m2 |
insolation |
insolation, hours of sun |
rh |
relative humidity, percentage |
data_names |
names of each period of time |
time.scale |
month, season or year |
na.rm |
logical. Should missing values (including NaN) be removed? |
mm
Chiew, F.H.S., Kamaladasa, N.N., Malano, H.M., McMahon, T.A., 1995. Penman–Monteith FAO-24 reference crop evapotranspiration and class-A pan data in Australia. Agric. Water Manage. 28, 9–21
data(data_all) eto(tmin = data_all$tn, tmax = data_all$tx, toa = data_all$radiationtoa, w = data_all$wind, lat=data_all$lat, tdew = data_all$dewpoint, mde=data_all$mde, radiation = data_all$radiation, insolation=data_all$insolation, rh = data_all$humidity)
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