Description Usage Arguments Value Author(s) See Also
Given the reflectance, day of year and solar zenith angle, the bi-directional reflectance is returned. This reflectance is adjusted for the variation of the Earth-Sun distance through the year and transformed from the assumption of Sun at zenith to the actual solar zenith angle used.
1 | fm_bidirrefl(refl,doy,solang)
|
refl |
The normalised reflectance under the assumption of Sun at zenith |
date |
Time identification as POSIXct object |
solang |
Solar zenith angle in degrees |
The bi-directional reflectance as a value or a vector depending on the input
Øystein Godøy (o.godoy@met.no)
fm_ch3brefl, fm_esd
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