Information for Sensor and Index

Formula

General Formula ( n ( 1 - 0.25 n ) - RED - 0.125 1 - RED )
Specific Formula ( 2 ( 42 - 32 ) + 1.5 4 + 0.5 3 4 + 3 + 0.5 ( 1 - 0.25 2 ( 42 - 32 ) + 1.5 4 + 0.5 3 4 + 3 + 0.5 ) - 3 - 0.125 1 - 3 )
Calculated Automatic
Comment

Sensor

Name Early Bird
Full Name Early Bird
Bands 4
Spectrum [nm] 450-890
Spat.Res. [m] 3-15
Inclination 97
Platform Earth Watch
Operator
Date of Launch 1997-00-00
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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Visualisation

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Index