OpenGeoSys Tutorial
Computational Hydrology II: Groundwater Quality Modeling
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Article
Open AccessAssessing the suitability of desalination techniques for hydraulic barriers
Seawater intrusion is a worldwide increasing challenge, which lowers the freshwater availability by salination of fresh groundwater resources in coastal areas. The abstraction-desalination-recharge (ADR) metho...
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Article
Open AccessA parsimonious approach to predict regions affected by sewer-borne contaminants in urban aquifers
Leaky urban drainage networks (UDNs) exfiltrating wastewater can contaminate aquifers. Detailed knowledge on spatiotemporal distributions of water-dissolved, sewer-borne contaminants in groundwater is essentia...
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Occurrence, fate, and risk of the organic pollutants of the surface water watch List in European groundwaters: a review
Groundwater is the main source of freshwater in the European Union, yet freshwaters are polluted by organic contaminants if contaminants are not efficiently removed in wastewater treatment plants. Here we revi...
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Open AccessPlant–soil feedbacks in mangrove ecosystems: establishing links between empirical and modelling studies
Plant–soil feedbacks in mangrove ecosystems are important for ecosystem resilience and can be investigated by establishing links between empirical and modelling studies.
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Article
Open AccessStormwater harvesting in ephemeral streams: how to bypass clogging and unsaturated layers
To cope with water scarcity in drylands, stormwater is often collected in surface basins and subsequently stored in shallow aquifers via infiltration. These stormwater harvesting systems are often accompanied ...
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Occurrence, Fate and Associated Risks of Organic Micropollutants from the Watch List of European Groundwaters
Groundwater is the main source of water supply in the European Union and therefore, the conservation and protection of this freshwater resource against pollution are key issues. Organic micropollutants have ra...
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Open AccessThe interplay between vegetation and water in mangroves: new perspectives for mangrove stand modelling and ecological research
It is commonly accepted that vegetation patterns and water supply mutually define each other. In mangroves, soil water salinity and the corresponding osmotic potential are the main drivers of plant water suppl...
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Lehren und Lernen: Bildung im Diskurs
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Chapter
WP-E: Groundwater Systems
The work package E was introduced as an addition to the “Urban Catchments”-project, in late 2016, more than one and a half year after its start. Its objective was to create a groundwater model to complete the ...
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Managing Water Resources for Urban Catchments
The overall objective of the project was the development of water management system solutions for a sustainable improvement of water quality in the city of Chaohu and in the Chao Lake. The Urban Water Resource...
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HT (Convection) Processes
In a geothermal system, unstable fluid density profiles due to temperature variations can trigger the onset and development of free thermal convective processes (J.W. Elder. Transient convection in a porous me...
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Modelling Strategy
The numerical model should represent the best characterization of the groundwater flow and solute transport process for the aquifer system of the study area in Ashi catchment. In order to simulate the processe...
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Reactive Nitrate Transport Model
One of the main applications of numerical groundwater models is to predict future field behavior.
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Introduction
The tutorial explains the step by step development of a steady state groundwater model and a conservative and reactive transport model with the help of open source software, first of all the numerical modellin...
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Stationary Groundwater Model
The mesh creation process via the OGS Data Explorer requires the selection of geometric data sets and the parametrization of those elements by the graphical user interface of the OGS Data Explorer.
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Reactive Point Pollutants Model Within a Transient Flow Field
In our last part of the simulation, we will forecast changes in groundwater regime impacted by increasing drinking water abstraction rates (Sect. 1.2.3) and show h...
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Comprehensive assessment of eutrophication status based on Monte Carlo–triangular fuzzy numbers model: site study of Dongting Lake, Mid-South China
For the assessment of lake’s eutrophication status, a great deal of data uncertainties exists under the circumstances that monitoring data often are scarce and inaccuracy or the variation intervals are wide. I...
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Variable Density Flow
The purpose of this benchmark is to verify the new directional transport boundary in OpenGeoSys. Therefore, a groundwater and solute transport model of an unconfined coastal under influence was devel...
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Benchmark: Theis Problem
The Theis problem describes a transient lowering of the water table caused by a pum** well (see Fig. 4.1). In order to show the basic steps to set up simple numerical models with different dimensions in OGS, we...
