Northeastern Black Soil Region Corn Leaf Chlorophyll Content Dataset for the Entire Growth Cycle (10 m Resolution; 2023)

These four growth phases are scientifically defined based on Growing Degree Days (GDD): seedling stage (GDD 0–400), jointing stage (GDD 400–800), heading stage (GDD 800–1200), and maturity stage (GDD 1200–1600).

The data are stored in Universal GeoTIFF format, with a spatial resolution of 10 m, a monthly time resolution, and are referenced in the WGS 84 spatial coordinate system. This dataset addresses the saturation effect observed in empirical models when applied to dense canopies; each growth stage has been independently validated using Hybrid-LOOCV, yielding outstanding inversion accuracy: Seedling stage: R² = 0.89, RMSE = 2.94 μg/cm², nRMSE = 6.7%, RPD = 3.03; Jointing stage: R² = 0.88, RMSE = 7.49 μg/cm², nRMSE = 15.8%, RPD = 2.85; Tasseling stage: R² = 0.90, RMSE = 2.55 μg/cm², nRMSE = 4.2%, RPD = 3.21; Maturity stage: R² = 0.85, RMSE = 2.70 μg/cm², nRMSE = 4.9%, RPD = 2.59.