Information for Sensor and Index

Formula

General Formula	$(n (1 - 0.25 n) - \frac{RED - 0.125}{1 - RED})$
Specific Formula	$(\frac{2 (4^{2} - 2^{2}) + 1.5 4 + 0.5 2}{4 + 2 + 0.5} (1 - 0.25 \frac{2 (4^{2} - 2^{2}) + 1.5 4 + 0.5 2}{4 + 2 + 0.5}) - \frac{2 - 0.125}{1 - 2})$
Calculated	Automatic
Comment

Sensor

Name	LandsatMSS (Landsat1-3)
Full Name	Landsat Multispectral Scanner
Bands	4
Spectrum [nm]	500-1100
Spat.Res. [m]	80-80
Inclination	0
Platform	Landsat
Operator	NASA
Date of Launch	1972-07-23
Comment
Usable for Indices	yes
Description

Index

Name	Global Environment Monitoring Index
Abbreviation	GEMI
Formula	$(n (1 - 0.25 n) - \frac{RED - 0.125}{1 - RED})$
Variables	n = ( 2 * ( NIR ^2 - RED ^2) + 1.5 * NIR + 0.5 * RED ) / ( NIR + RED + 0.5 )
Expl. of Variables
Wavelengths	640:760,780:1400
Source	Original formula
Description	Bannari 1996

References

Nr.	Author/Title	Year	Comment
1	Bannari, A.; Morin, D.; Bonn, F.; Huete, A. R. - A review of vegetation indices	1995
2	Rondeaux, GeneviÃ¨ve; Steven, Michael; Baret, FrÃ©dÃ©ric - Optimization of soil-adjusted vegetation indices	1996

Visualisation

Sensor

Index