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In spite of many years of intensive study, our current abilities to quantify and predict contaminant migration in natural geological formations remain severely limited. The heterogeneity of these formations over a wide range of scales necessitates consideration of sophisticated transport theories. The evolution of such theories has escalated to the point that a review of the subject seems timely. While conceptual and mathematical developments were crucial to the introduction of these new approaches, there are now too many publications that contain theoretical abstractions without regard to real systems, or incremental improvements to existing theories which are known not to be applicable.This volume brings together articles representing a broad spectrum of state-of-the-art approaches for characterization and quantification of contaminant dispersion in heterogeneous porous media. The contributions are intended to be as accessible as possible to a wide readership of academics and professionals with diverse backgrounds such as earth sciences, subsurface hydrology, petroleum engineering, and soil physics.
1. On Perturbative Expansions to the Stochastic Flow Problem; F.A. Bonilla, J.H. Cushman. 2. Recursive Conditional Moment Equations for Advective Transport in Randomly Heterogeneous Velocity Fields; A. Guadagnini, S.P. Neuman. 3. The Relative Dispersion and Mixing of Passive Solutes in Transport in Geologic Media; A. Fiori. 4. Comparison of Observations from a Laboratory Model with Stochastic Theory: Initial Analysis of Hydraulic and Tracer Experiments; S.E. Silliman, L. Zheng. 5. Large-Time Spatial Covariance of Concentration of Conservative Solute and Application to the Cape Cod Tracer Test; M. Pannone, P.K. Kitanidis. 6. Macrodispersivity and Large-Scale Hydrogeologic Variability; D. McLaughlin, F. Ruan. 7. Role of Molecular Diffusion in Contaminant Migration and Recovery in an Alluvial Aquifer Ssytem; E.M. LaBolle, G.E. Fogg. 8. Quantum Field Theory in the Statistical Physics of Subsurface Solute Transport; G. Sposito. 9. The Tracer Transit-Time Tail in Reservoir Flows; J. Koplik. 10. Fractional Dispersion, Levy Motion, and the MADE Tracer Tests; D.A. Benson, R. Schumer, M.N. Meerschaert, S.W. Wheatcraft. 11. The Role of Probabilistic Approaches to Transport Theory in Heterogeneous Media; B. Berkowitz, H. Scher.
