EVI: EVI - Enhanced Vegetation Index

In nightmares: Common Analysis with Remote Sensing Data

Description

EVI is similar to the Normalized Difference Vegetation Index. However, EVI corrects for some atmospheric conditions and canopy background noise and is more sensitive in areas with dense vegetation.

Usage

EVI(B, R, NIR)

Arguments

B	A raster layer object with the reflectance values for the Blue band.
R	A raster layer object with the reflectance values for the Red band.
NIR	A raster layer object with the reflectance values for the Near Infrared band.

Value

EVI - Enhanced Vegetation Index.

References

https://www.usgs.gov/core-science-systems/nli/landsat/landsat-surface-reflectance-derived-spectral-indices. https://www.geo.university/pages/spectral-indices-with-multispectral-satellite-data.

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(x[[2]], x[[4]], x[[5]])

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