Maximum Weighted Log-Likelihood Estimation for Parameterization Selection Uncertainty
Hydraulic conductivity identification remains a challenging inverse problem in groundwater modeling because of inherent non-uniqueness and lack of flexibility in parameterization methods....

Groundwater Transport Modeling Using Fuzzy Sets and Fuzzy Logic
Modeling of groundwater flow and transport is inherently uncertain. The predictive capability of the model depends upon both the quantity and quality of hydrogeologic data. The introduction...

Remediation System Optimization with Alternatives
This work applies the enhanced multi-objective robust genetic algorithm (EMRGA) (Beckford and Chan Hilton, 2004) to Fort Ord's Site OU2 for optimal groundwater remediation under uncertainty....

Stochastic Conditional Simulation of Berea Sandstone Geophysical Properties with a Counterpropagation Neural Network
The ability of a counterpropagation neural network to produce stochastic conditional simulations is applied and evaluated on a real dataset. This network functions as a nonparametric clustering...

Fundamentals of Risk Assessment
Risk, expressed in terms of potential human sufferings and economic losses, is very real and its significance is particularly important when considering natural hazards. For effective...

Hydrosystems Engineering Uncertainty Analysis
Focusing on issues of civic interest, this comprehensive practice manual teaches the application of uncertainty analysis for more sustainable hydrosystem design and management. Created...

Infrastructure Planning Handbook
Planning, Engineering, and Economics
The book covers the concepts, methods, and management skills necessary to plan and maintain infrastructure. Topics include major infrastructure projects in context; master planning; infrastructure...

Hydrologic Modeling Uncertainty and Spatial Data Resolution

Flood Frequency Prediction: A Methodology for Identifying Structural Uncertainty

Wastewater Treatment: EPA Revokes Blending Proposal, Prompting Uncertainty About Future Policy

Book Review: Risk and Uncertainty in Dam Safety by Desmond N.D. Hartford and Gregory B. Baecher. London: Thomas Telford Books, 2004

Book Review: Energy at the Crossroads: Global Perspectives and Uncertainties by Vaclav Smil. Cambridge, Massachusetts: MIT Press, 2003

Impact of Ground Water Management on the Hydropattern of Wetlands
In this paper, we examine the effect of altering the pumping rates of a large municipal well field, on the hydropattern of the near by PENSUCO wetland. A flow model developed earlier using...

Lessons Learned from Experience Dealing with Risks of Extreme Events: Part I
The five speakers in this session talked about a wide variety of topics, including schedule dependencies in hurricane preparedness, knowledge mapping across networks, extreme events in...

Degrees of Belief
Subjective Probability and Engineering Judgment
Degrees of Belief artfully weaves together three elements at the very core of engineering: uncertainties in knowledge, inductive reasoning,...

Book Review: Proactive Risk Management: Controlling Uncertainty in Product Development by Preston G. Smith and Guy M. Merritt. New York: Productivity Press, 2002

Uncertainty in Probabilistic Seismic Hazard Analysis

Probabilistic Simplified and Detailed Subsurface Drainage Water Quality Modeling of Nitrate Leaching
A transparent uncertainty structure is derived for simplified and detailed conceptual nitrate leaching as a result of a probabilistic modelling procedure. The uncertainty structure consists...

Sources of Uncertainty for Oil Spill Simulations

Uncertainty of Bridge Scour Estimates

 

 

 

 

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