et0_calc: Reference Evapotranspiration - The FAO Penman-Monteith method

In joaobtj/hydirrig: Hydraulic design of irrigation systems

Reference Evapotranspiration - The FAO Penman-Monteith method

Description

Reference Evapotranspiration - The FAO Penman-Monteith method

Usage

et0_calc(
  tem_max,
  tem_min,
  umd_max,
  umd_min,
  uv,
  uz = 2,
  rs = NULL,
  g = 0,
  lat,
  alt,
  date
)

Arguments

tem_max	Maximum air temperature, C
tem_min	Minimum air temperature, C
umd_max	Maximum relative humidity, %
umd_min	Minimum relative humidity, %
uv	Wind speed, m/s
uz	Height of measurement of wind speed above ground surface. Default is 2 m.
rs	Solar radiation, MJ m^-2^^day^-1
g	Soil heat flux. Default is 0
lat	Latitude,
alt	Altitude abose sea level
date	Date

Examples

et0_calc(
  tem_max = 21.5, tem_min = 12.3, umd_max = 84, umd_min = 63, uv = 2.78, uz = 10,
  rs = 22.07, g = 0, lat = 50.8, alt = 100, date = as.Date("2009-7-6")
)

joaobtj/hydirrig documentation built on Oct. 2, 2023, 2:08 p.m.