Information for Sensor and Index

Formula

General Formula	$\frac{GREEN - RED}{GREEN + RED}$
Specific Formula	$\frac{3 - 8}{3 + 8}$
Calculated	Automatic
Comment

Sensor

Name	CASI_spatial
Full Name
Bands	11
Spectrum [nm]	417-806
Spat.Res. [m]	0-0
Inclination	0
Platform	airborne
Operator	ITRES Research Instruments
Date of Launch	1989-00-00
Comment	Pixel per line: 512, FOV: 34,2Â° Spatial Mode = 512 pixels across swath, up to 18 spectral bands (fully programmable)
Usable for Indices	yes
Description

Index

Name	Normalized Difference Green/Red Normalized green red difference index, Visible Atmospherically Resistant Indices Green (VIgreen)
Abbreviation	NGRDI
Formula	$\frac{GREEN - RED}{GREEN + RED}$
Variables
Expl. of Variables
Wavelengths	490:570,640:760
Source	Original formula
Description

References

Nr.	Author/Title	Year	Comment
1	Gitelson, A. A.; Kaufman, Y. J.; Stark, R.; Rundquist, D. - Novel algorithms for remote estimation of vegetation fraction	2002
2	Zarco-Tejada, P. J.; Miller, J. R.; Noland, T. L.; Mohammed, G. H.; Sampson, P. H. - Scaling-up and model inversion methods with narrow-band optical indices for chlorophyll content estimation in closed forest canopies with hyperspectral data	2001

Visualisation

Sensor

Index