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Hyoun-Tae Hwang, Ph.D., P.Geo.
Director of HydroGeoSphere, Aquanty Inc., Waterloo, ON, Canada
Adjunct Assistant Professor, Department of Earth and Environmental Sciences, University of Waterloo, ON, Canada
HydroGeoSphere
HydroGeoSphere
HydroGeoSphere (HGS) is a 3D control-volume finite element groundwater model, and is based on a rigorous conceptualization of the hydrologic system consisting of surface and subsurface flow regimes.[1][2] The model is designed to take into account all key components of the hydrologic cycle. For each time step, the model solves surface and subsurface flow, solute and energy transport equations simultaneously, and provides a complete water and solute balance. See more info from AQUANTY INC
Integrated Hydrologic Simulation
Credit: Hyoun-Tae Hwang
Publications
Publications
2024
Effects of soil heterogeneity and preferential flow on the water flow and isotope transport in an experimental hillslope
2023
Estimation of groundwater contributions to Athabasca River, Alberta, Canada
Disentangling runoff generation mechanisms: combining isotope tracing with integrated surface/subsurface simulation
2022
Evaluation of push–pull tracer tests for estimating groundwater velocity in a fractured-rock aquifer
Evaluating backward probability model under various hydrogeologic and hydrologic conditions
2021
An adaptive zone-based refinement method for characterizing a highly complex aquifer system model
Estimating anthropogenic effects on a highly-controlled basin with an integrated surface-subsurface model
Evaluating landscape influences on hydrologic behavior with a fully-integrated groundwater–surface water model
Investigating groundwater-lake interactions in the Laurentian Great Lakes with a fully-integrated surface water-groundwater model
Method and system for integrated surface water and groundwater modelling using a dynamic mesh evolution
2020
Changes in Geochemical Composition of Groundwater Due to CO2 Leakage in Various Geological Media
Improving precision in regional scale numerical simulations of groundwater flow into underground openings
Changes in geochemical and carbon isotopic compositions during reactions of CO2-saturated groundwater with aquifer materials
Backward probability model for identifying multiple contaminant source zones under transient variably saturated flow conditions
Characterization of groundwater–surface water interactions using high resolution integrated 3D hydrological model in semiarid urban watershed of Niamey, Niger
High-resolution, integrated hydrological modeling of climate change impacts on a semi-arid urban watershed in Niamey, Niger
Towards a climate-driven simulation of coupled surface-subsurface hydrology at the continental scale: a Canadian example
2019
Simulating climate change impacts on surface water resources within a lake-affected region using regional climate projections
Estimating cumulative wastewater treatment plant discharge influences on acesulfame and Escherichia coli in a highly impacted watershed with a fully-integrated modelling approach
Efficient numerical incorporation of water management operations in integrated hydrosystem models: Application to tile drainage and reservoir operating systems
Evaluating climate change impacts on soil moisture and groundwater resources within a lake-affected region
2018 and before
Understanding the water balance paradox in the Athabasca River Basin, Canada
Full coupling between the atmosphere, surface, and subsurface for integrated hydrologic simulation
Comparison of saturated hydraulic conductivity estimated by three different methods
Dual permeability modeling of tile drain management influences on hydrologic and nutrient transport characteristics in macroporous soil
A simple iterative method for estimating evapotranspiration with integrated surface/subsurface flow models
Coupled atmospheric, land surface, and subsurface modeling: Exploring water and energy feedbacks in three-dimensions
Determination of rate constants and branching ratios for TCE degradation by zero-valent iron using a chain decay multispecies model
A parallel computational framework to solve flow and transport in integrated surface–subsurface hydrologic systems
A multiphase flow and multispecies reactive transport model for DNAPL-involved compound specific isotope analysis
A semi-analytical solution for simulating contaminant transport subject to chain-decay reactions
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