A physically based, variably saturated flow model was developed to predict soil water dynamics, evapotranspiration (ET) from the vadose zone, and recharge to (or exfiltration from) the saturated zone using mean daily atmospheric forcings and to identify the value of diurnal climate forcings on those predictions. The vadose zone flow is modelled using the Galerkin finite element technique to sol...

Multi-functional probe for small-scale simultaneous measurements of soil thermal properties, water content, and electrical conductivity A. Valente a,∗, R. Morais a, A. Tuli b, J.W. Hopmans b, G.J. Kluitenberg c a CETAV, Centro de Estudos Tecnológicos do Ambiente e da Vida, UTAD University, Quinta de Prados, Apartado 1013, 5001-801 Vila Real, Portugal b Vadose Zone Hydrology, Department of Land,...

The full-scale in situ bioremediation demonstration conducted at DOE’s Savannah River Site revealed a wide range of spatial and temporal variations of concentrations of VOCs, enzymes, and biomass in groundwater and vadose zone monitoring boreholes over the field site. One of the powerful modern approaches to analyze uncertain and imprecise data is based on the use of methods of fuzzy systems mo...

A small subsurface ion mobility spectrometer (SS-IMS) was constructed and tested with several environmental contaminants to determine its potential for monitoring gaseous volatile organic compounds in the vadose zone. Trichloroethylene (TCE) and tetrachloroethylene (PCE) were detected and separated in IMS for the first time. Detection limits as low as 1 part per billion volume-to-volume (ppb(v)...