Rui Hugman

Scientifically-Based, Decision-Support Groundwater Modelling

GMDSI is preparing a two-part book. A draft of the first part of this book is now available. Authored by John Doherty, it provides a comprehensive conceptual framework for decision-support groundwater modelling. Based firmly on scientific principles, it suggests ways in which modelling can better serve the imperatives of environmental management than it does now. […]

Scientifically-Based, Decision-Support Groundwater Modelling Read More »

Worked Example: Contaminant Source Identification

Locating sources of groundwater contamination is an inverse problem on steroids. It is, in fact, two inverse problems. Source locations must be back-calculated from field measurements. The hydraulic properties of aquifer material through which groundwater flows, and contaminants are transported, must also be inferred from these same measurements. Another spice in the inverse problem soup

Worked Example: Contaminant Source Identification Read More »

Groundwater Modelling and the Scientific Method: Part 2

This is the second of a two-part series recorded by John Doherty. The first video is philosophical. The second video provides real-world examples of the philosophy at work. Two examples are discussed. Both of these are the subject of GMDSI worked example reports. The first example illustrates how, through simultaneous history-matching of six aquifer tests,

Groundwater Modelling and the Scientific Method: Part 2 Read More »

Groundwater Modelling and the Scientific Method: Part 1

This is the first of a two-part series recorded by John Doherty. The first video is philosophical. The second video provides two real-world examples of the philosophy at work. This first video begins by examining the scientific method. It then examines the way in which decision-support groundwater modelling is commonly undertaken. It demonstrates that differences

Groundwater Modelling and the Scientific Method: Part 1 Read More »

Worked Example: Coastal Management Modelling

Management of coastal aquifers is unforgiving. If too much fresh water is extracted, salt water takes its place. Depending on the location, measurements of historical system behaviour may be scarce or plentiful. However assimilation of these data using a numerical model that attempts to simulate salt water intrusion is nearly impossible because of long run

Worked Example: Coastal Management Modelling Read More »

Intro to History Matching and Uncertainty Analysis

These videos were prepared as lectures for the Groundwater Modelling topic of the Groundwater Hydrology course at Flinders University. They aim to introduce history matching and uncertainty quantification in the context of groundwater modelling for decision-support and provide a starting point for those who are new to the field. The videos provide an overview of

Intro to History Matching and Uncertainty Analysis Read More »

Interactive Video: A Conceptual Representation of the Phases of Groundwater Model Development and Application for Users at all Levels

Groundwater modelling needs a context to make sense. This context is set by a decision that must be made, by those who must make that decision, and by those who are affected by it. The context for the decision itself is set by adverse consequences that groundwater management seeks to avoid. Ty Ferré from University

Interactive Video: A Conceptual Representation of the Phases of Groundwater Model Development and Application for Users at all Levels Read More »

Monograph: Decision-Support Modelling Viewed through the Lens of Model Complexity

What should decision-support groundwater modelling seek to accomplish? Should it try to build a digital replica of what happens underground? Obviously not, because this is impossible. Not nearly enough is known about the subsurface and its hydraulic properties to do this. This monograph (written by John Doherty and Catherine Moore) is meant for modellers and

Monograph: Decision-Support Modelling Viewed through the Lens of Model Complexity Read More »