Dragonette-2/3 TCARI/OSAVI
TCARI/OSAVI for Dragonette-2/3
Vegetation Satellite Provider: Wyvern
Applications
crop chlorophyll content estimation
precision agriculture
vegetation stress detection
land cover change monitoring
vegetation health assessment
agricultural monitoring
Quick Stats
Category: vegetation
Sensor: Dragonette-2/3
Provider: Wyvern
Bands Used: 4
Description
TCARI/OSAVI is a combined vegetation index that integrates the Transformed Chlorophyll Absorption in Reflectance Index (TCARI) with the Optimized Soil-Adjusted Vegetation Index (OSAVI). It is designed for accurate estimation of crop chlorophyll content while minimizing the effects of soil background and leaf area index variations.
Formulas
General Formula
Dragonette-2/3 Specific Formula
3 * (Band20 - Band17) - 0.2 * (Band20 - Band9) * (Band20 / Band17) / [(1 + 0.16) * (Band27 - Band17) / (Band27 + Band17 + 0.16)]Spectral Band Visualization
Band Wavelengths
550: 550
670: 670
700: 700
800: 800
Code Examples
tcari_osavi.py
References
Haboudane et al. (2002) - Integrated narrow-band vegetation indices for prediction of crop chlorophyll content
Wu et al. (2008) - Estimating chlorophyll content from hyperspectral vegetation indices
Zarco-Tejada et al. (2007) - Remote sensing of vegetation biophysical parameters for detecting stress conditions