HR: 0800h
AN: H11B-0298    [Abstracts]
TI: Uncertainty Analysis of Flow and Transport Through Heterogeneous, Variably-Saturated Field at INTEC, INEEL
AU: * Wu, J Q
EM: jwu@wsu.edu
AF: Washington State University, Department of Biological Systems Engineering, PO Box 646120, Pullman, WA 99164-6120 United States
AU: Yang, L
EM: ylm@mail.wsu.edu
AF: Washington State University, Department of Biological Systems Engineering, PO Box 646120, Pullman, WA 99164-6120 United States
AU: Rossi, R
EM: Rrossi@wsu.edu
AF: Washington State University, Department of Biological Systems Engineering, PO Box 646120, Pullman, WA 99164-6120 United States
AU: Schafer, A L
EM: nsa@inel.gov
AF: Idaho National Engineering and Environmental Laboratory, Geosciences Research Department, P.O. Box 1625, Idaho Falls, ID 83415-2107 United States
AU: Hull, L C
EM: hulllc@inel.gov
AF: Idaho National Engineering and Environmental Laboratory, Geosciences Research Department, P.O. Box 1625, Idaho Falls, ID 83415-2107 United States
AU: Fairley, J P
EM: jfairley@uidaho.edu
AF: University of Idaho, Department of Geological Sciences, Moscow, ID 83844-3022 United States
AB: The main purpose of this study is to examine the uncertainty associated with water flow and solute transport through the variably-saturated, heterogeneous field at the Idaho Nuclear Technology and Engineering Center (INTEC), Idaho National Engineering and Environmental Laboratory (INEEL). Specifically, we will (i) analyze the uncertainty in water and solute travel time as a function of spatial distribution of sediment interbedding through geostatistical analysis of existing borehole data and applying Monte Carlo techniques to a deterministic model for flow and solute transport under variably-saturated flow; and (ii) evaluate the compound effect of major physical settings (source location and boundary conditions) and subsurface spatial heterogeneity on the model predictions. Empirical probabilistic density functions (pdf) are used to describe the uncertainty in subsurface flow rates and travel time. Both one-dimensional and two-dimensional results are presented to illustrate the effects of subsurface spatial heterogeneity and hydrological settings on water flow and contaminant transport
DE: 5104 Fracture and flow
DE: 5139 Transport properties
DE: 3210 Modeling
DE: 1869 Stochastic processes
DE: 1875 Unsaturated zone
SC: Hydrology [H]
MN: 2004 AGU Fall Meeting