Fig. 5. Comparison of instantaneous measurements (1.5 h before local noon) of net radiation (RN), soil heat flux (G), sensible heat (H), and latent heat (LE) made in four vegetative stands with estimates generated by the ALEXI model using local, ground-based inputs. The root mean square difference (RMSD) between measurements and model estimates for all flux components is 54 W m-2 (19% of the mean observed flux), with a coefficient of determination (R2) of 0.95.