Monday, 7 November 2005
76-6

This presentation is part of: Symposium--Water and Chemical Fluxes from the Pore to Landscape Scale: I

Multi-Functional Heat Pulse Probe Measurements of Coupled Vadose Zone Fluxes.

Jan W. Hopmans, Annette P. Mortensen, Jirka Simunek, Yasushi Mori, and Gerard Kluitenberg.

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)