Model 01 · Hydrodynamics
FLUXOS
2-D shallow-water solver for flood & solute transport
High-performance C++ solver for the 2-D shallow-water equations on regular or unstructured triangular meshes. Couples optional advection–dispersion transport and soil infiltration, with hybrid MPI + OpenMP and CUDA GPU acceleration for basin-scale simulations.
Roe + MUSCL flux
Triangular mesh
Wetting / drying
CUDA GPU
MPI + OpenMP
Docker / Apptainer
Model 02 · Water Quality
OpenWQ
Open-source biogeochemistry & water-quality engine
A modular water-quality framework that couples to host hydrological models (SUMMA, mizuRoute, CRHM, FLUXOS) to simulate the transport and reactive transformation of multiple chemical species across landscapes. JSON-driven configuration with swappable biogeochemistry engines.
Multi-species transport
Modular BGC engines
Template library
Sources & sinks
Host-model coupling
Calibration workflow