Adaptation of MIMICS model to wheat at multi-band (L, S, C, X)

The research made an adaptation for Michigan Microwave Canopy Scattering (MIMICS) model at four bands (L, S, C, X) after taking wheat ears as the first layer. When wheat ears appears in heading stage, they locate on the top of the whole wheat and owes the different dielectric constant and water content, which should be considered the important scattering elements. The scattering character of wheat ears are fully considered in two growth stage (heading stage and ripening stage). In the process of adaptation, the stem and leaves layer was taken as the second layer instead of the trunk layer, which is different from forested environment to cereal condition. A new contribution to backscatter was inserted to compensate the total backscatter. The results after comparing the measured data and the predicted data by adaptation of MIMICS model showed the inclusion of wheat ears as one of the model components is feasible in modeling the wheat backscatter.