Land surface albedo is a key parameter representing the outgoing solar flux fractions reflected by earth surface . It is widely used as an input parameter for numerical radiation budget models, the hydrological cycle and climate modeling studies. Urban’s high albedo changes the original land surface radiation balance, high thermal diffusivity insulates the ground, and thus it represents a dry, ...

Thermal properties of compost bulking materials affect temperature and biodegradation during the composting process. Well determined thermal properties of compost feedstocks will therefore contribute to practical thermodynamic approaches. Thermal conductivity, thermal diffusivity, and volumetric heat capacity of 12 compost bulking materials were determined in this study. Thermal properties were...

Abstract. We investigate the asymptotic behaviour of the wetting front arising from unsaturated flow in porous media wherein the liquid saturation θ obeys a nonlinear diffusion equation having moisture diffusivity that is an exponential function D(θ) = Do exp(βθ). For values of the physical parameters corresponding to actual porous media, the diffusivity at the residual value of saturation is D...

Methane transport in soil is primarily affected by physical conditions such as texture and structure, moisture, soil-gas diffusivity, permeability, temperature. Aggregated soils have distinct structure with two pore regions characteristics (i.e., interaggregate intraaggregate regions) therefore show bimodal behavior respect to properties controlling gas migration. This study characterized an ag...