WorldView Legion Ctr6
Simple Ratio 550/420 Carter6 for WorldView Legion
Vegetation Satellite Provider: MAXAR
Applications
vegetation stress detection
plant health monitoring
water stress assessment
disease detection
environmental stress monitoring
chlorophyll content changes
Quick Stats
Category: vegetation
Sensor: WorldView Legion
Provider: MAXAR
Bands Used: 2
Description
Carter6 (Ctr6) is a simple ratio vegetation stress index developed by Gregory A. Carter. It uses the ratio of reflectance at 550nm (green) to 420nm (blue) to detect plant stress. The index is based on the principle that stress factors interfere with photosynthesis and alter the reflectance spectrum, particularly in the blue and green regions.
Formulas
General Formula
WorldView Legion Specific Formula
Green / CoastalSpectral Band Visualization
Band Wavelengths
420: 420
550: 550
Code Examples
carter6.py
References
Carter, G.A. (1994) - Ratios of leaf reflectances in narrow wavebands as indicators of plant stress. International Journal of Remote Sensing, 15(3), 697-703