eto: Reference evapotranspiration

In ClimInd: Climate Indices

Description

If data available using Fao-56 Penman-Monteith

Usage

eto(
  tmin,
  tmax,
  toa,
  w,
  lat,
  tdew,
  mde,
  radiation = NA,
  insolation = NA,
  rh = NA,
  data_names = NULL,
  time.scale = YEAR,
  na.rm = FALSE
)

Arguments

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?

Value

mm

References

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

Examples

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)

ClimInd documentation built on April 10, 2021, 1:06 a.m.