penman_monteith_f56: Calculate Potential Evapotranspiration (PET) using FAO Penman-Monteith

Description

The function penman_monteith_f56 computes PET by FAO Penman-Monteith method.

Usage

penman_monteith_f56(
  tavg,
  tmin,
  tmax,
  rn,
  u,
  tdew,
  elevation = NULL,
  pres = NULL,
  x = NULL
)
# S4 method for missing,missing,missing,missing,missing,missing,missing,missing
penman_monteith_f56(x)
# S4 method for Raster,Raster,Raster,Raster,Raster,Raster,ANY,ANY
penman_monteith_f56(
  tavg,
  tmin,
  tmax,
  rn,
  u,
  tdew,
  elevation = NULL,
  pres = NULL,
  x = NULL
)
# S4 method for character,character,character,character,character,character,ANY,ANY
penman_monteith_f56(
  tavg,
  tmin,
  tmax,
  rn,
  u,
  tdew,
  elevation = NULL,
  pres = NULL,
  x = NULL
)

Value

RasterBrick or data.table of PET values (mm/day)

Arguments

tavg: Raster* object or file path; average temperature (°C)
tmin: Raster* object or file path; minimum temperature (°C)
tmax: Raster* object or file path; maximum temperature (°C)
rn: Raster* object or file path; net radiation (MJ m-2 day-1)
u: Raster* object or file path; wind speed at 2 meters (m/s)
tdew: Raster* object or file path; dew point temperature (°C)
elevation: Raster* object or file path; elevation (m). Optional if `pres` is provided.
pres: Optional. Raster* object or file path; atmospheric pressure (kPa)
x: A `data.table` with columns: "lon", "lat", "date", "tavg", "tmin", "tmax", "rn", "u", "tdew", and either "elevation" or "pres".

Details

For Raster inputs, provide raster objects or file paths for `tavg`, `tmin`, `tmax`, `rn`, `u`, `tdew`, and either `elevation` or `pres`. For data.table input, provide a single `data.table` with columns: "lon", "lat", "date", "tavg", "tmin", "tmax", "rn", "u", "tdew", and either "elevation" or "pres".