Dielectric measurements of a pine litter of Siberia boreal forest over the range from 0.5 to 15 GHz and from -30 to +25°C are presented. The measurements were fitted to the Temperature Generalized Refractive Mixing Dielectric Model (TD GRMDM) recently proposed by Mironov et al. This TD GRMDM predicts the dielectric for this soil in the whole range of moistures, frequencies, and temperatures measured. The model prediction errors are on the same order as that of dielectric measurements. The model proposed is the first of its kind to provide a physical basis for radar and radiothermal remote sensing algorithms that retrieve the freeze/thaw state and the volumetric moisture in the upper layer of an Siberia forest soil.
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