Longwave Radiation Balance — rad_lw

Calculates the sum of longwave incoming and outgoing radiation.

Usage

rad_lw_bal(...)

# Default S3 method
rad_lw_bal(temp, rh, slope, valley, surface_type, surface_temp, ...)

# S3 method for class 'weather_station'
rad_lw_bal(weather_station, ...)

Arguments

...: Named station fields, site parameters or model assumptions.
temp: Air temperature in degrees C.
rh: Relative humidity in percent.
slope: Slope in degrees.
valley: Logical value indicating whether the station is in a valley.
surface_type: Surface-type label.
surface_temp: Surface temperature in degrees C.
weather_station: A weather_station object.

Value

Longwave radiation balance in W/m².

Details

The longwave radiation balance ($R_{lw}$) is calculated as: $$R_{lw} = LW_{in} - LW_{out}$$ where: $LW_{in}$ is the longwave incoming radiation, $LW_{out}$ is the longwave outgoing radiation.

References

Bendix 2004, p. 68. eq. 3.25.

Examples

# Calculate longwave radiation balance
rad_lw_bal(temp = 15, rh = 60, slope = 5, valley = FALSE, surface_type = "lawn", surface_temp = 15)
#> [1] -121.2849