Increasing challenges in solving hydrogeological problems require advanced modelling tools to provide insight into process understanding and system behavior. Applications include water supply and groundwater protection, contaminant transport and remediation, cryo-hydrogeology, waste storage and resource extraction, including mining and geothermal energy. These systems are often complex, involving multiple coupled processes in heterogeneous porous or fractured porous media. Modelling challenges include process representation, domain characterisation and parameterisation, balancing simplicity and complexity in conceptual models, and computational effort. This session targets innovative development and applications of numerical models to such challenging hydrogeological systems. We welcome contributions at the laboratory, field or basin scales, and from daily to seasonal to geological time scales. Contributions which address current societal and environmental challenges in hydrogeology including climate change are particularly welcome.

• 2:00 pm – 2:15 pm | A Process-Based Model (GEGCSim) for Coupled Multicomponent Gas Transport, Water Flow, Heat Transfer, and Reactions in Porous Media – Wameed Alghazali
• 2:15 pm – 2:30 pm | Numerical simulations of lake talik evolution in continuous permafrost at the Meliadine Mine site, Nunavut – Camille Pelletier
• 2:30 pm – 2:45 pm | Numerical simulations of groundwater flow systems in the context of a deep geological repository under glacial cycles and permafrost freeze/thaw – John Molson
• 2:45 pm – 3:00 pm | Developing an Integrated Model to Quantify the Influence of Groundwater Flow on Sediment Transport – Quan Wei
• 3:00 pm – 3:15 pm | Grid Discretization Strategies for Efficient Regional-Scale MODFLOW 6 Modeling – Mason Marchildon