ol_rad: Estimate net outgoing longwave radiation.

Description Usage Arguments Value

View source: R/FAO56.R

Description

Estimate net outgoing longwave radiation.

Usage

1
ol_rad(tmax, tmin, Rs, Rso, ea)

Arguments

tmax

Daily maximum air temperature at 2m height [deg Celsius].

tmin

Daily minimum air temperature at 2m height [deg Celsius].

Rs

Incoming shortwave radiation at crop surface [MJ m-2 day-1].

Rso

Clear sky incoming shortwave radiation, i. e. extraterrestrial radiation multiply by clear sky transmissivity (i. e. a + b, a and b are coefficients of Angstrom formula. Normally 0.75) [MJ m-2 day-1].

ea

Actual vapor pressure [kPa]. Can be estimated by maximum or minimum air temperature and mean relative humidity.

Value

Net outgoing longwave radiation [MJ m-2 day-1]


Sibada/sibadaR documentation built on Jan. 31, 2020, 6:40 p.m.