DESCRIPTION
r.vi calculates vegetation indices based on biophysical parameters.
1. RVI: ratio vegetation index:
2. NDVI: Normalized Difference Vegetation Index
3: IPVI: Infrared Percentage Vegetation Index
4: DVI: Difference Vegetation Index
5: PVI: Perpendicular Vegetation Index
6: WDVI: Weighted Difference Vegetation Index
7: SAVI: Soil Adjusted Vegetation Index
8: GARI: Green atmospherically resistant vegetation index
9: MSAVI: Modified Soil Adjusted Vegetation Index
10:MSAVI2: second Modified Soil Adjusted Vegetation Index
11:GEMI: Global Environmental Monitoring Index
12:ARVI: atmospherically resistant vegetation indices
13:GVI: Green Vegetation Index
NDVI
Data Type Band Numbers ([IR, Red])
TM Bands= [4,3]
MSS Bands = [7, 5]
AVHRR Bands = [2, 1]
SPOT XS Bands = [3, 2]
AVIRIS Bands = [51, 29]
(AVHRR) NDVI = (channel 2 - channel 1) / (channel 2 + channel 1)
NOTES
Originally from kepler.gps.caltech.edu
A FAQ on Vegetation in Remote Sensing
Written by Terrill W. Ray
Div. of Geological and Planetary Sciences
California Institute of Technology
email: terrill@mars1.gps.caltech.edu
Snail Mail: Terrill Ray
Division of Geological and Planetary Sciences
Caltech
Mail Code 170-25
Pasadena, CA 91125
TODO
SEE ALSO
r.albedo
AUTHORS
Baburao Kamble, Asian Institute of Technology, Thailand
Yann Chemin, Asian Institute of Technology, Thailand
Last changed: $Date$