The GROUNDED EO database
The GROUNDED EO fiducial reference database is likely the most extensive decametric fiducial reference database of vegetation biophysical variables to date (containing more than 16,000 observations derived from 81 NEON, TERN, and ICOS sites between 2013 and 2022, along with accompanying uncertainties derived according to FRM4VEG recommendations).
The generation of the database is fully described in the accompanying paper:
Luke A. Brown, Richard Fernandes, Jochem Verrelst, Harry Morris, Najib Djamai, Pablo Reyes-Muñoz, Dávid D.Kovács, Courtney Meier, "GROUNDED EO: Data-driven Sentinel-2 LAI and FAPAR retrieval using Gaussian processes trained with extensive fiducial reference measurements", Remote Sensing of Environment, Volume 326, 2025, 114797, ISSN 0034-4257 (https://doi.org/10.1016/j.rse.2025.114797).
