Simultaneous measurement of coupled water, heat, and solute transport in unsaturated porous media is made possible with the multi-functional heat pulse probe (MFHPP). The probe combines a heat pulse technique for estimating soil heat properties, water flux, and water content with a Wenner array measurement of bulk soil electrical conductivity. To evaluate the MFHPP, we conducted controlled steady-state flow experiments in a sand column for a wide range of water saturations, flow velocities, and solute concentrations. Experimental data were analyzed by inverse modeling of simultaneous water, heat, and solute transport using an adapted HYDRUS-2D model. The MFHPP holds great promise as an excellent instrument for the continuous wireless monitoring of the vadose zone, including ecological and hydrological applications.
See more of Symposium--Water and Chemical Fluxes from the Pore to Landscape Scale: I
See more of S01 Soil Physics
See more of The ASA-CSSA-SSSA International Annual Meetings (November 6-10, 2005)