Information for Sensor and Index

Formula

General Formula ( n ( 1 - 0.25 n ) - RED - 0.125 1 - RED )
Specific Formula ( 2 ( near_infrared2 - red2 ) + 1.5 near_infrared + 0.5 red near_infrared + red + 0.5 ( 1 - 0.25 2 ( near_infrared2 - red2 ) + 1.5 near_infrared + 0.5 red near_infrared + red + 0.5 ) - red - 0.125 1 - red )
Calculated Automatic
Comment

Sensor

Name QuickBird
Full Name QuickBird
Bands 5
Spectrum [nm] 450-900
Spat.Res. [m] 0.6-2.4
Inclination 97.2
Platform Earth Watch
Operator GeoEye
Date of Launch 2001-10-18
Comment
Usable for Indices yes
Description

Index

Name Global Environment Monitoring Index
Abbreviation GEMI
Formula ( n ( 1 - 0.25 n ) - 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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Index