A Normalized Difference Vegetation Index (NDVI) was applied to the source NAIP 2016 imagery. NDVI=(NearIR-Red)/(NearIR+Red). The color ramp (produced by ESRI) goes from brown (less healthy vegetation) to red to green (healthier vegetation or more "greenness").
We provide advanced conservation science, technology, and planning to empower our partners in solving the world’s critical ecological challenges