Fig. 5

Correlations between the canopy height derived from crop surface model (Hcsm) and canopy height (Hcanopy) from field measurements at the initial jointing and initial heading stages (a), and residual plots of the error distributions for b two stages, c initial jointing stage, and d initial heading stage. The r, RRMSE and MAE represent the Pearson correlation coefficient, relative root mean square error, and mean absolute deviation, respectively