LAI: LAI - Leaf Area Index

In nightmares: Common Analysis with Remote Sensing Data

Description

This function calculate the Leaf Area Index (LAI) based on Boegh et al., 2002. High LAI values typically range from approximately 0 to 3.5. However, when the scene contains clouds and other bright features that produce saturated pixels, the LAI values can exceed 3.5.

Usage

LAI(EVI)

Arguments

EVI	A raster layer object with the Enhanced Vegetation Index.

Value

LAI - Leaf Area Index.

References

Boegh et al., 2002. Airborne Multi-spectral Data for Quantifying Leaf Area Index, Nitrogen Concentration and Photosynthetic Efficiency in Agriculture. Remote Sensing of Environment, 81(2-3), 179-193.

Examples

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)
evi <- EVI(x[[2]], x[[4]], x[[5]])
LAI(evi)

nightmares documentation built on Oct. 23, 2020, 7:15 p.m.