WIN_IPH2

WIN_IPH2 is a Windows-based implementation of the IPH II rainfall–runoff model developed by the Grupo de Clima e Recursos Hídricos at the Instituto de Pesquisas Hidráulicas (IPH), Universidade Federal do Rio Grande do Sul (UFRGS). It provides a practical environment for simulating streamflow from precipitation and evapotranspiration data using a conceptual representation of basin processes.

Key features and uses:

• Conceptual rainfall–runoff modeling that represents soil moisture dynamics, infiltration, surface runoff, interflow, and baseflow.
• Continuous or event-focused simulations to support hydrologic studies, flood analysis, and water-balance assessments.
• User-friendly interface for data input, parameter configuration, and visualization of hydrographs and water-balance components.
• Tools to support calibration and validation workflows, with comparative plots and performance metrics.
• Scenario testing for evaluating land-use changes, climate variability, and management alternatives.
• Suitable for research, engineering practice, and water-resources planning in small to medium-sized catchments.

WIN_IPH2 maintains the structure and parameterization of the original IPH II model, making it a familiar and accessible option for practitioners and researchers, particularly in Brazilian basins where the model is widely applied.

WIN_IPH2 is developed by Grupo de Clima e Recursos Hídricos - IPH - UFRGS. The most popular version of this product among our users is 1.0. The name of the program executable file is WIN_IPH2.exe.