Abstract:
his paper presents the development of an improved
soil radiative transfer model (RTM) which considering the
volume scattering effect of soil particles, an unexplored part of
traditional RTMs, through field experiments and numerical
simulations. The field observations were conducted by using the
Ground Based Passive Microwave Radiometer (GBMR) to
measure the brightness temperature of dry sand layer over
background materials, metal plates or absorbers. The existence
of volume scattering effects in the dry sand was demonstrated
through field experiments. Then, the observed data were
simulated by the dense media radiative transfer (DMRT) model.
The simulation results show that the DMRT model which
includes the volume scattering effects performers better than the
generally used surface emission model which does not include
volume scattering effects.
