
A rancher or rangeland manager needs to know which paddock has the most standing forage this week — a relative ranking across fields, refreshed often. Ground estimation is subjective and lab methods are too slow. ETD's 2 m composite biomass index, auto-calibrated to local geography, ranks fields correctly more than 90% of the time (relative accuracy ±15–20%) and updates on the Sentinel-2 cadence — built for the next grazing decision, at a price that works over whole ranches.