nightmares (version 0.0.2)

GCI: GCI - Green Chlorophyll Index

Description

This function is used to estimate leaf chlorophyll content of plants species.

Usage

GCI(G, NIR)

Arguments

G

A raster layer object with the reflectance values for the Green band.

NIR

A raster layer object with the reflectance values for the Near Infrared band.

Value

GCI - Green Chlorophyll Index.

References

Gitelson et al., 2003. Relationships between leaf chlorophyll content and spectral reflectance and algorithms for non-destructive chlorophyll assessment in higher plant leaves. Journal of Plant Physiology, 160, 271-282.

Examples

# NOT RUN {
library(raster)
path_files <- system.file("extdata/", package="nightmares")
bands <- stack(list.files(path_files,".tif", full.names=TRUE))
x <- ref_oli(bands, sun.elev= 67.97)
GCI(x[[3]], x[[5]])

# }