Dragonette-1 Ctr2
Simple Ratio 695/760 Carter2 for Dragonette-1
Vegetation Satellite Provider: Wyvern
Applications
plant stress detection
vegetation health monitoring
water stress assessment
disease detection
chlorophyll content changes
early stress warning systems
Quick Stats
Category: vegetation
Sensor: Dragonette-1
Provider: Wyvern
Bands Used: 2
Description
Carter2 (Ctr2) is a plant stress index that uses the ratio of reflectance at 695nm (red-edge) to 760nm (near-infrared). This index is particularly effective at detecting stress because it combines the stress-sensitive red-edge region with the NIR region where healthy vegetation shows high reflectance.
Formulas
General Formula
Dragonette-1 Specific Formula
Band 16 / Band 21Spectral Band Visualization
Band Wavelengths
695: 695
760: 760
Code Examples
carter2.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