Information for Sensor and Index

Formula

General Formula ( n ( 1 - 0.25 n ) - RED - 0.125 1 - RED )
Specific Formula ( 2 ( MS4_Near_Infrared2 - MS3_Red2 ) + 1.5 MS4_Near_Infrared + 0.5 MS3_Red MS4_Near_Infrared + MS3_Red + 0.5 ( 1 - 0.25 2 ( MS4_Near_Infrared2 - MS3_Red2 ) + 1.5 MS4_Near_Infrared + 0.5 MS3_Red MS4_Near_Infrared + MS3_Red + 0.5 ) - MS3_Red - 0.125 1 - MS3_Red )
Calculated Automatic
Comment

Sensor

Name DubaiSat-1
Full Name
Bands 5
Spectrum [nm] 420-890
Spat.Res. [m] 2.5-5
Inclination 98.13
Platform
Operator Emirates Institution of Advanced Science and Technology
Date of Launch 2009-07-29
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