CE-QUAL-W2 is continuously developed. Each release sharpens the numerics, broadens the water-quality kinetics and smooths the modeling workflow — here's what stands out today.
The most impactful additions modelers feel on day one.
The complete set of capabilities that make CE-QUAL-W2 a long-standing standard for 2D water-resources modeling.
An implicit/explicit finite-difference solution with adaptive time-stepping keeps long, multi-year simulations stable and efficient.
The full Fortran source ships with the model, so kinetics and boundary conditions can be inspected, audited and extended.
Companion utilities help build bathymetry, prepare inputs and visualize results — see the tools section.
Grab the current release, the source code and worked example data sets.