skyl: Sky light model

In ccrtm: Coupled Chain Radiative Transfer Models

Description

Simple atmospherical model that builds on recommendations from Francois et al. (2002).

Usage

skyl(rddt, rsdt, rdot, rsot, Es, Ed, tts, skyl = NULL)

Arguments

rddt	Bi-hemispherical reflectance
rsdt	Directional-hemispherical reflectance for solar incident flux
rdot	Hemispherical-directional reflectance in viewing direction
rsot	Bi-directional reflectance factor
Es	Solar flux
Ed	Diffuse flux
tts	solar angle
skyl	fraction diffuse

Value

a list with hemispherical and directional reflectance. rt<-fRTM(rho~prospect5+foursail) skyl(rt[,"rddt"],rt[,"rsdt"],rt[,"rdot"],rt[,"rsot"], Es=solar[,1],Ed=solar[,2],tts=45,skyl=NULL)

References

Francois, C., Ottle, C., Olioso, A., Prevot, L., Bruguier, N., Ducros, Y.(2002). Conversion of 400-1100 nm vegetation albedo measurements into total shortwave broadband albedo using a canopy radiative transfer model. Agronomie 22, 611-618.

Examples

data(solar)

ccrtm documentation built on Feb. 26, 2021, 9:06 a.m.