| Calibration Assistance Program (CAP) | Used to derive initial parameter estimates using GIS data |
| Integrated Hydrologic Automated Basin-Boundary System (IHABBS) | Delineates basin boundaries and computes drainage areas |
| Historical Data Browser (HDB) | Locates data stations and produces statistical summaries |
| Precipitation Preliminary Processing | Computes mean monthly values, consistency checks, etcetera |
| Interactive Double Mass Analysis (IDMA) | Graphical assistance for consistency corrections |
| Mean Areal Precipitation (MAP), MAT (temperatures), MAPE (potential evaporation) | Computes various time series for basin mean values |
| MCP, ICP, and OPT | Calibration and Optimization programs discussed previously |
