Information for Sensor and Index

Formula

General Formula ( n ( 1 - 0.25 n ) - RED - 0.125 1 - RED )
Specific Formula ( 2 ( 102 - 12 ) + 1.5 10 + 0.5 1 10 + 1 + 0.5 ( 1 - 0.25 2 ( 102 - 12 ) + 1.5 10 + 0.5 1 10 + 1 + 0.5 ) - 1 - 0.125 1 - 1 )
Calculated Automatic
Comment

Sensor

Name MVISR
Full Name Multichannel Visible and Infrared Scan Radiometer
Bands 10
Spectrum [nm] 430-12200
Spat.Res. [m] 0-0
Inclination 0
Platform Chinese FengYun-1 (FY-1C)
Operator China
Date of Launch 1999-05-10
Comment The FY-1C satellite was destroyed by a Chinese Anti-Satellite weapon. The successor FY-1D carries the same sensor and is still operating but with reduced functionality.
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