Stochastic methods in subsurface contaminant hydrology /
| Other Authors: | |
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| Format: | eBook |
| Language: | English |
| Published: |
[Reston, Va.] :
ASCE Press,
2002.
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| Subjects: | |
| Online Access: | Connect to the full text of this electronic book |
Table of Contents:
- 1 Preliminary Concepts in Stochastic Processes
- The Case for Stochastic Approaches
- Preliminary Concepts of Random Fields
- Scope of This Book
- References
- 2 Perturbation Theories for the Estimation of Macrodispersivities in Heterogeneous Aquifers
- Introduction
- Statistical Characterization of Random Fields
- Flow in a Heterogeneous Porous Medium and the Spectrum of Specific Discharge Variations
- Solute Transport in Heterogeneous Aquifers
- Eulerian Approach
- Lagrangian Approach
- Unified View of Eulerian and Lagrangian Approaches and Some Illustrative Results.
- Influence of the Plume Size on Macrodispersion
- Comparison of Dispersivity Predictions Against Field Data and Numerical Simulations
- Summary and Concluding Remarks
- References
- 3 Concentration Fluctuations, Dilution, and Risk Assessment: Role of Local Dispersion and Heterogeneity
- Introduction
- Background
- Objective
- Fundamentals
- Seepage Velocity
- Local Dispersion
- Solute Transport Equation
- Enhanced Spreading Due to Heterogeneity
- Field Observations
- Macrodispersion
- Stochastic Model
- Flow in a Random Hydraulic Conductivity Field
- Solute Transport Simulation.
- Disconnect Between Dilution and Spreading
- Dilution-Spreading-Local Dispersion Characteristics
- Cape Cod Bromide Tracer Data
- Volume Occupied by Solute
- Concentration Fluctuations and Risk
- Irregularity of Concentration Distributions
- Rise and Fall of the Concentration Coefficient of Variation
- Conclusion
- Acknowledgments
- References
- 4 Stochastic Analysis of Reactive Transport Processes in Heterogeneous Porous Media
- Introduction
- Subsurface Contaminants and Their Sources
- Physical and Chemical Concepts in Reactive Transport Modeling.
- Mass Transport in Saturated and Unsaturated Porous Media
- Mass Transfer Processes: Sorption
- Mass Transfer Processes: Transformation
- Reactive Contaminant Transport: Field Observations
- Stochastic Analysis of Reactive Contaminant Transport
- Spatially Variable Linear Equilibrium Assumption Sorption in One-Dimensional Media with Homogeneous Hydraulic Conductivity
- Spatially Variable Linear Sorption in Heterogeneous Media with No Local Dispersion (Lagrangian Analysis)
- Spatially Variable Linear Sorption and Degradation in Heterogeneous Media with Local Dispersion (Eulerian Analysis).
- Nonlinear Sorption and Kinetic Processes in Heterogeneous Media
- Stochastic Analysis of Contaminant Breakthrough Curves
- The Breakthrough Curve Concept in Heterogeneous Porous Media
- Nonreactive Solute Travel Time
- Reactive Solute Travel Time
- Travel Time Moments for Nonequilibrium Sorption and Degradation
- Reactive Contaminant Transport in the Vadose Zone
- Conclusion
- Acknowledgments
- Table of Notation
- References
- 5 Streamtube Ensemble Techniques for Subsurface Multicomponent Reactive Transport
- Introduction
- Multicomponent Reaction Systems.