Information for Sensor and Index

Formula

General Formula	$(n (1 - 0.25 n) - \frac{RED - 0.125}{1 - RED})$
Specific Formula	$(\frac{2 (24^{2} - 14^{2}) + 1.5 24 + 0.5 14}{24 + 14 + 0.5} (1 - 0.25 \frac{2 (24^{2} - 14^{2}) + 1.5 24 + 0.5 14}{24 + 14 + 0.5}) - \frac{14 - 0.125}{1 - 14})$
Calculated	Automatic
Comment

Sensor

Name	GLI
Full Name	Global Imager
Bands	36
Spectrum [nm]	375-12500
Spat.Res. [m]	250-1000
Inclination	98.6
Platform	Advanced Earth Observing Satellite 2 (ADEOS II)
Operator	NASDA, NASA and CNES
Date of Launch	2002-12-14
Comment	The mission ended in October 2003 (2003-10-23) after the satellite's solar panels failed.
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

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Sensor

Index