Information for Sensor and Index

Formula

General Formula	$\frac{860nm - 1640nm}{860nm + 1640nm}$
Specific Formula	$\frac{4 - 5}{4 + 5}$
Calculated	Automatic
Comment

Sensor

Name	Resource21
Full Name	Resource21
Bands	6
Spectrum [nm]	450-1650
Spat.Res. [m]	10-100
Inclination	98
Platform	Resource21
Operator
Date of Launch	1999-00-00
Comment	Off-Nadir Repeat Cycle: Twice in 25 min (with 4 satellites)
Usable for Indices	yes
Description

Index

Name	Normalized Difference 860/1640
Abbreviation	SIWSI
Formula	$\frac{860nm - 1640nm}{860nm + 1640nm}$
Variables
Expl. of Variables
Wavelengths	860,1640
Source	Original formula
Description	Estimate leaf of canopy water stress, especially in the semiarid environment.

References

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Visualisation

Sensor

Index