penman_monteith_f56 {evapoRe}R Documentation

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 signature 
## 'missing,missing,missing,missing,missing,missing,missing,missing'
penman_monteith_f56(x)

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

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".

Value

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


[Package evapoRe version 1.0.1 Index]