GetReflectance: GetReflectance

In tommasojulitta/FieldSpectroscopyDP: R package for processing fieldspectroscopy data

Description

Compute the Reflectance Factor from upwelling and downwelling radiance or counts

Usage

GetReflectance(DownwellingRadiance, UpwellingRadiance)

Arguments

DownwellingRadiance	numeric vector or data.frame: spectrum/a of of downwelling radiance
UpwellingRadiance	numeric vector or data.frame: spectrum/a of of upwelling radiance

Value

numeric vector or data.frame containing the computed reflectance factor.

Author(s)

Tommaso Julitta, Mirco Migliavacca, Thomas Wutzler

Examples

  


data("FloX_data")


data("up_coeff")


data("dw_coeff")


data("wl_FloX")





#Get Target Radiance 


L<-GetRadiance(DNSignal=FloX_data$L-FloX_data$dcL,IntegrationTime=FloX_data$IT_L/1000,RadCalCoeff=dw_coeff)


#Get Solar Radiance 


E<-GetRadiance(DNSignal=FloX_data$E-FloX_data$dcE,IntegrationTime=FloX_data$IT_E/1000,RadCalCoeff=up_coeff)


#Get Reflectance


Ref<-GetReflectance(UpwellingRadiance = L,DownwellingRadiance=E)


#plot


x11()    


par(mar=c(5,5,2,2))


plot(wl_FloX,Ref[,4],type="l",ylab="Reflectance [-]", xlab="WL [nm]")    

tommasojulitta/FieldSpectroscopyDP documentation built on March 12, 2020, 1:42 p.m.