L-band emission from a Eucalyptus forest in various soil conditions during the nafe campaign

This paper analyzes the L-band radiometric signatures collected over a Eucalyptus forest with moderate biomass, and compares the results with simulations of a theoretical model and a simple model. Due to the limited biomass and the thin litter layer, some sensitivity to variations of soil moisture is observed. Simulations of the theoretical model are in general agreement with measurements, with an overall rms error of 3.7 K. The greatest discrepancy is observed for measurements collected just after a rainfall. The performance of the simple model is only slightly worse than that of the theoretical model, leading to an overall rms error of about 5K.