A5061734411- Groundwater flow and contamination studies
- Geological Modeling and Analysis
- Groundwater and Isotope Geochemistry
- Geological and Geophysical Studies Worldwide
- Hydrology and Watershed Management Studies
- Karst Systems and Hydrogeology
- Soil and Unsaturated Flow
- Geological formations and processes
- Geophysical and Geoelectrical Methods
- Hydraulic Fracturing and Reservoir Analysis
- Reservoir Engineering and Simulation Methods
- Geothermal Energy Systems and Applications
- Water management and technologies
- Groundwater and Watershed Analysis
- Landslides and related hazards
- Historical and Environmental Studies
- Geophysical Methods and Applications
- CO2 Sequestration and Geologic Interactions
- Soil Geostatistics and Mapping
- Soil erosion and sediment transport
- Underground infrastructure and sustainability
- Grouting, Rheology, and Soil Mechanics
- Geophysics and Gravity Measurements
- Flood Risk Assessment and Management
- Synthetic Aperture Radar (SAR) Applications and Techniques
University of Liège
2015-2024
Joint Research Center
2013-2022
Département Mathématiques et Informatique Appliquées
2018
KU Leuven
2004-2013
Catholic University of America
2004
Vrije Universiteit Brussel
2004
Uncertainty assessments in groundwater modeling applications typically attribute all sources of uncertainty to errors parameters and inputs, neglecting what may be the primary source uncertainty, namely, conceptualization system. Confining set plausible system representations a single model leads underdispersive prone‐to‐bias predictions. In this work, we present general flexible approach that combines generalized likelihood estimation (GLUE) Bayesian averaging (BMA) assess predictions arise...
Underground Pumped Storage Hydropower (UPSH) is a potential alternative to manage electricity production in flat regions. UPSH plants will interact with the surrounding porous medium through exchanges of groundwater. These may impact aquifers, but they also influence efficiency pumps and turbines because affecting head difference between reservoirs. Despite relevance for an accurate assessment, groundwater has not been previously addressed. A numerical study synthetic case presented...
Abstract In theory, aquifer thermal energy storage (ATES) systems can recover in winter the heat stored during summer to increase efficiency of system. practice, is often lower than expected from simulations due spatial heterogeneity hydraulic properties or non‐favorable hydrogeological conditions. A proper design ATES should therefore consider uncertainty prediction related those parameters. We use a novel framework called Bayesian Evidential Learning (BEL) estimate capacity an alluvial...
Several studies have highlighted the potential negative impact of climate change on groundwater reserves, but additional work is required to help water managers plan for future changes. In particular, existing provide projections a stationary representative end century, although information demanded near future. Such time‐slice experiments fail account transient nature climatic changes over century. Moreover, uncertainty linked natural variability not explicitly considered in previous...
Underground pumped storage hydroelectricity (UPSH) plants using open-pit or deep mines can be used in flat regions to store the excess of electricity produced during low-demand energy periods. It is essential consider interaction between UPSH and surrounding geological media. There has been little work on assessment associated groundwater flow impacts. The impacts are determined numerically a simplified numerical model which assumed representative mines. main impact consists oscillation...
A comprehensive hydrogeological investigation regarding the influence of variations in local and regional water mass on superconducting gravity measurements is presented for observations taken near geodynamic station Membach, Belgium. Applying a storage model, contribution due to elastic deformation Earth was derived. In addition, Newtonian effect induced by calculated, using soil moisture at ground surface (about 48 m above gravimeters). The computation gravimetric based digital elevation...
Recent applications of multimodel methods have demonstrated their potential in quantifying conceptual model uncertainty groundwater modeling applications. To date, however, little is known about the value conditioning to constrain ensemble conceptualizations, differentiate among retained alternative and reduce uncertainty. We address these questions by simulations on measurements hydraulic conductivity observations system‐state variables evaluating effects (1) posterior statistics (2)...
Abstract. In this work we assess the uncertainty in modelling groundwater flow for Pampa del Tamarugal Aquifer (PTA) – North Chile using a novel and fully integrated multi-model approach aimed at explicitly accounting uncertainties arising from definition of alternative conceptual models. The integrates Generalized Likelihood Uncertainty Estimation (GLUE) Bayesian Model Averaging (BMA) methods. For each member an ensemble M potential conceptualizations, model weights used BMA aggregation are...
The intermittent nature of most renewable energy sources requires their coupling with an storage system, pumped hydropower (PSH) being one popular option. However, PSH cannot always be constructed due to topographic, environmental, and societal constraints, among others. Underground (UPSH) has recently gained popularity as a viable alternative may utilize abandoned mines for the construction lower reservoir in underground. Such underground have complex geometries injection/pumping large...