Extended Data Fig. 3: National gridded yield potential (Ypot) comparison of two approaches.
Comparison of Ypot predictions based on GYGA upscaling approach (left panels) and the metamodel (right panels) versus site-level Ypot from the Global Yield Gap Atlas (GYGA Ypot) for three crops and two water regimes. Each point represents a site (reference weather station). Predictions were derived following the Nearest-Neighbor-Distance-Matching Leave-One-Out Cross-Validation method, with crop harvested area of countries included in GYGA as target prediction area. The root mean square error relative to GYGA Ypot average (RSME, %) is shown for each method and crop combination.
