Description Usage Arguments Details Value Author(s) References See Also Examples
Estimates upward facing ground radiation (W/m2), from the Stephan Boltzmann relationship and ground temperature
1 | Lu(Tg = 20, Eground = 0.97)
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Tg |
Ground temperature (degrees celsius) |
Eground |
Emissivity of soil or ground. Default value is 0.97. |
Calculates ground radiation facing upward. Assumes ground emissivity = 0.97. Terrain emissivities vary from 0.89 (sand, snow) to 0.97 (moist soil) - Blaxter, 1986
A value, vector of length one, corresponding to the longwave radiation from the ground, units: W/m2.
Glenn J Tattersall
Blaxter, 1986. Energy metabolism in animals and man. Cambridge University Press, Cambridge, UK, 340 pp.
1 2 3 4 5 | # Estimates ground generated longwave radiation rising up. Units W/m2.
# Example calculation:
Tg<-30
Eground<-0.97
Lu(Tg, Eground)
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