Fig. 3. Comparison of daily integrated measurements of net radiation (RN), soil heat flux (G), sensible heat (H), and latent heat (LE) made in six vegetative stands with estimates generated by the ALEX model. The root mean square difference (RMSD) between measurements and model estimates for all fluxes combined is 0.9 MJ day^-1 (15% of the mean observed flux), with a coefficient of determination (R²) of 0.97 (Anderson et al., 2000).