planck: Planck's law
In nobodyinperson/meteoRology: Basic meteorology functions

Description Usage Arguments Details Value Source See Also

Calculate the spectral radiance of gray body per unit area of emitting surface, per unit solid angle and per spectral unit (frequency or wavelength) using Planck's law.

1	planck(frequency = NULL, wavelength = NULL, T, epsilon = 1)

`frequency`	frequency in [Hz]
`wavelength`	wavelength in [m] (ignored if `frequency` is set)
`epsilon`	emissivity, in the range c(0,1)
`temp`	temperature in [K]

If both frequency and wavelength wavelength are given, a warning will be printed and the frequency taken.

Spectral radiance of body with emissivity e at absolute temperature T and frequency frequency or rather wavelength wavelength. The unit is [W*m-2*sr-1*Hz] if frequency was given or [W*m-2*sr-1*m-1] if wavelength wavelength was given.

https://en.wikipedia.org/wiki/Planck%27s_law

brightness.temperature for backwards determination of the brightness temperature by planck's law.

nobodyinperson/meteoRology documentation built on May 23, 2019, 9:31 p.m.