Information for Sensor and Index

Formula

General Formula ( n ( 1 - 0.25 n ) - RED - 0.125 1 - RED )
Specific Formula ( 2 ( 112 - 82 ) + 1.5 11 + 0.5 8 11 + 8 + 0.5 ( 1 - 0.25 2 ( 112 - 82 ) + 1.5 11 + 0.5 8 11 + 8 + 0.5 ) - 8 - 0.125 1 - 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: 34,2° Spatial Mode = 512 pixels across swath, up to 18 spectral bands (fully programmable)
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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Visualisation

Sensor


Index