In this article, we developed the dense media radiative transfer (DMRT) model for random media with densely packed particle clusters. The dense media are computer-generated by applying the bicontinuous random media characterization. The microstructure of the media is controlled by two parameters: mean grain size <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\langle \zeta \rangle $ </tex-math></inline-formula> and aggregation parameter <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">${b}$ </tex-math></inline-formula> . Phase matrices and extinction coefficients are computed with full-wave simulations. These are then substituted into radiative transfer (RT) equations to obtain backscattering coefficients of the dense media layer with particle clusters. The backscattering has a weaker frequency dependence (e.g., <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\sim $ </tex-math></inline-formula> 2.6 power for <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">${b}=\mathbf {0}.\mathbf {4}$ </tex-math></inline-formula> ) than the Rayleigh scattering of fourth power. Backscattering results exhibit strong co-, cross-polarization (pol), and ratio of cross- to co-polarization. For applications to remote sensing of terrestrial snow at C-band, the results of DMRT simulations show that cross-polarization of snow volume scattering can be larger than that of soil surface scattering. Recently, this property of strong cross-polarization has become a useful satellite remote sensing technique for global retrieval of snow depth. Comparisons of DMRT results are made with ESA Satellite Sentinel 1 C-band data and ground-based radar observations. The calculated backscatter is in good agreement with radar measurements for both the co- and cross-polarization.