Research Highlight - Model simplification to simulate groundwater recharge from a perched gravel-bed river
Research Highlight, Staff highlight, HGS, GW-SW exchange, Hyporheic zone, Transport, Groundwater, Watershed hydrology, Water Resources Management, Numerics Veljko Zaric Research Highlight, Staff highlight, HGS, GW-SW exchange, Hyporheic zone, Transport, Groundwater, Watershed hydrology, Water Resources Management, Numerics Veljko Zaric

Research Highlight - Model simplification to simulate groundwater recharge from a perched gravel-bed river

This publication co-authored by Antoine Di Ciacca, Scott Wilson, Patrick Durney, Guglielmo Stecca, and Thomas Wöhling, investigates model simplification strategies to simulate groundwater recharge from perched gravel-bed rivers. This study leverages HydroGeoSphere (HGS) as a fully integrated 3D surface–subsurface model, alongside 2D cross-sectional and 1D analytical models, to address long-standing challenges in representing river–aquifer interactions while reducing computational demands.

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Research Highlight - Is the Water Balance of Your Waste Rock Pile Reliable? A framework for Improving Assessment of Water Inputs and Outputs for a Typical Storage Facility
Research Highlight, HGS, Mining and energy, Surface–subsurface interactions, Hydrological processes, Numerics, Climate Veljko Zaric Research Highlight, HGS, Mining and energy, Surface–subsurface interactions, Hydrological processes, Numerics, Climate Veljko Zaric

Research Highlight - Is the Water Balance of Your Waste Rock Pile Reliable? A framework for Improving Assessment of Water Inputs and Outputs for a Typical Storage Facility

This research focuses on understanding the dynamics of topography-driven groundwater flow systems using fully-coupled surface–subsurface hydrologic modelling. This study addresses long-standing challenges in representing nested flow systems by simulating interactions between climate, topography, and groundwater without relying on potentially unrealistic, static boundary conditions.

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Staff Research Highlight - Quantifying the potential of using Soil Moisture Active Passive (SMAP) soil moisture variability to predict subsurface water dynamics
Research Highlight, Staff highlight, Groundwater, HGS, Climate, Soil Moisture, Remote sensing, Aquanty project Veljko Zaric Research Highlight, Staff highlight, Groundwater, HGS, Climate, Soil Moisture, Remote sensing, Aquanty project Veljko Zaric

Staff Research Highlight - Quantifying the potential of using Soil Moisture Active Passive (SMAP) soil moisture variability to predict subsurface water dynamics

Aquanty staff investigate the potential for using near-surface soil moisture measurements from the Soil Moisture Active Passive (SMAP) satellite to predict subsurface soil moisture and groundwater storage dynamics. This research offers valuable insights into how satellite-based soil moisture data can inform large-scale hydrological modelling and support more effective water resource management.

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Staff Research Highlight - Understanding topography-driven groundwater flow using fully-coupled surface-water and groundwater modeling
Research Highlight, Staff highlight, Groundwater, HGS, Climate, Topography, Hydrological processes, GW-SW exchange, Evapotranspiration, Aquanty project Veljko Zaric Research Highlight, Staff highlight, Groundwater, HGS, Climate, Topography, Hydrological processes, GW-SW exchange, Evapotranspiration, Aquanty project Veljko Zaric

Staff Research Highlight - Understanding topography-driven groundwater flow using fully-coupled surface-water and groundwater modeling

This research focuses on understanding the dynamics of topography-driven groundwater flow systems using fully-coupled surface–subsurface hydrologic modelling. This study addresses long-standing challenges in representing nested flow systems by simulating interactions between climate, topography, and groundwater without relying on potentially unrealistic, static boundary conditions.

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Assessing the Sensitivity of Subsurface Mine-Dewatering Simulations to Surface Water Representation - Aquanty Webinar
Events, Webinars, Hydrologic forecasting, HGS, Climate, Mining and energy Veljko Zaric Events, Webinars, Hydrologic forecasting, HGS, Climate, Mining and energy Veljko Zaric

Assessing the Sensitivity of Subsurface Mine-Dewatering Simulations to Surface Water Representation - Aquanty Webinar

Explore how surface water representation shapes subsurface mine-dewatering simulations in our latest webinar with Dr. Andrea Brookfield (University of Waterloo). This session highlights how climate change and surface water interactions can significantly influence dewatering strategies across mining operations.

Using HydroGeoSphere, the webinar compares conventional groundwater-only models with fully integrated surface–subsurface simulations under future climate scenarios. The results reveal important limitations of traditional approaches and show how integrated models provide more accurate insights for long-term mine water management.

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HGS RESEARCH HIGHLIGHT – Vulnerability of the Saint-Charles drinking water source: portrait of the groundwater resources of the St-Charles River watershed and their links with surface water
Research Highlight, HGS, Groundwater, GW-SW exchange, Source water protection, Watershed hydrology, Water Resources Management Veljko Zaric Research Highlight, HGS, Groundwater, GW-SW exchange, Source water protection, Watershed hydrology, Water Resources Management Veljko Zaric

HGS RESEARCH HIGHLIGHT – Vulnerability of the Saint-Charles drinking water source: portrait of the groundwater resources of the St-Charles River watershed and their links with surface water

We’re pleased to highlight this research effort, which focuses on understanding the vulnerability of the Saint-Charles River drinking water source and characterizing the groundwater resources that support it. Presented through a public-facing ArcGIS Story Map, this project delivers an accessible summary of a detailed hydrogeological study that integrates field measurements, geochemical analyses, and numerical modelling to evaluate the watershed’s current and future ability to provide safe, reliable drinking water for the City of Quebec and its surrounding municipalities.

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Staff Research Highlight - Steady-state density-driven flow and transport: Pseudo-transient parameter continuation
Research Highlight, Staff highlight, Numerics, Groundwater, HGS, Calibration, Climate, Density-dependent flow, Coastal hydrology Veljko Zaric Research Highlight, Staff highlight, Numerics, Groundwater, HGS, Calibration, Climate, Density-dependent flow, Coastal hydrology Veljko Zaric

Staff Research Highlight - Steady-state density-driven flow and transport: Pseudo-transient parameter continuation

Co-authored by Aquanty’s senior scientist, Hyoun-Tae Hwang, this research presents a new numerical approach for efficiently solving steady-state density-driven flow and transport equations— an important challenge in groundwater modelling, particularly for coastal aquifers affected by seawater intrusion. The research introduces a hybrid technique called pseudo-transient parameter continuation (PTPC), which combines the robustness of pseudo-transient continuation (PTC) methods with the computational efficiency of parameter continuation (PC) strategies.

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HGS RESEARCH HIGHLIGHT – Source Water Protection in Quebec City: Using an integrated 3D hydrological model to investigate surface water-groundwater interactions
Research Highlight, HGS, Groundwater, Particle tracing, Hydraulic mixing cell, GW-SW exchange, Source water protection, Watershed hydrology, Water Resources Management Veljko Zaric Research Highlight, HGS, Groundwater, Particle tracing, Hydraulic mixing cell, GW-SW exchange, Source water protection, Watershed hydrology, Water Resources Management Veljko Zaric

HGS RESEARCH HIGHLIGHT – Source Water Protection in Quebec City: Using an integrated 3D hydrological model to investigate surface water-groundwater interactions

The research, presented as a poster by Benjamin Frot at EGU 2025, explores the use of HydroGeoSphere (HGS) to investigate surface water–groundwater interactions in the Saint-Charles River watershed, which supplies drinking water to Quebec City. With a focus on source water protection, the study addresses the challenges posed by increasing urbanization, contamination from septic systems and road salts, and reduced water availability during low-flow periods. The work is part of a larger project aimed at evaluating the vulnerability of Quebec City's main surface water intake.

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