Alquimia
A biogeochemistry Application Program Interface and wrapper library.
Amanzi
A flexible and extensible flow and reactive transport simulation capability for environmental applications.
ATS
Advanced Terrestrial Simulator (ATS) - for solving ecosystem-based, integrated, distributed hydrology.
CrunchFlow
An open-source software package for simulating reactive flow and transport.
EcoSLIM
A Lagrangian particle-tracking model designed to operate with integrated hydrologic models.
ParFlow
The integrated watershed model, solves saturated and variably saturated flow in three dimensions.
PFLOTRAN
An open-source, state-of-the-art massively parallel subsurface flow and reactive transport code.