Fig. 1
From: MCI GPP: ensembling a global model- and climate-independent gross primary productivity for 2001–2023

Global distribution of FluxNet2015 (optimization) and AmeriFlux (validation) flux tower sites. The background shows MODIS land cover in 2020. Abbreviations: ENF (evergreen needleleaf forest), EBF (evergreen broadleaf forest), DNF (deciduous needleleaf forest), DBF (deciduous broadleaf forest), MF (mixed forest), CSH (closed shrubland), OSH (open shrubland), WSA (woody savanna), SAV (savanna), GRA (grassland), CRO (cropland).