Raven is a robust and flexible hydrological modelling framework, designed for
application to challenging hydrological problems in academia and practice. This fully
object-oriented code provides complete flexibility in spatial discretization, interpolation,
process representation, and forcing function generation. Models built with Raven can be as
simple as a single watershed lumped model with only a handful of state variables to a full
semi-distributed system model with physically-based infiltration, snowmelt, and routing.
This flexibility encourages stepwise modelling while enabling investigation into critical research issues regarding discretization, numerical implementation, and ensemble simulation of surface water hydrological models.
Raven is open source, covered under the Artistic License 2.0.