Description Usage Arguments Author(s) References Examples
The Normalized Burn Ratio (NBR) was designed to highlight burned areas and estimate fire severity. The formula is similar to NDVI, except that it uses near-infrared (NIR) and shortwave-infrared (SWIR) wavelengths.
NBR=(NIR - SWIR) / (NIR + SWIR)
1 | NBR(a = "NIR", b = "SWIR")
|
a |
NIR satellite band (format:TIF) |
b |
SWIR satellite band (format:TIF) |
Mehdi Sarparast
[1] USGS burn severity - Overview of applied remote sensing principles. [2] Norton, J.M. 2006. The use of remote sensing indices to determine wildland burn severity in semiarid sagebrush steppe rangelands using Landsat ETM+ and SPOT 5. MS Thesis, Idaho State University.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | ## The function is currently defined as
function (a = "NIR", b = "SWIR")
{
name=NBR(a,b)
areaXY <-c(xmin, xmax, ymin, ymax)
cropXY <- crop(name, areaXY)
plot(cropXY,lwd=4,
main="NBR",
xlab="easting", ylab="northing")
hist(cropXY,
main="Histogram of NBR"
,
xlab="NBR",col="red", ylab="Frequency of Pixels")
}
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