This is a quick start guide to HEC-HMS.
The Hydrologic Modeling System (HEC-HMS) Version 4.0 is designed to simulate precipitation-runoff processes in dendritic watershed systems, ranging from large river basins to small urban watersheds. It supersedes HEC-1 and offers advanced capabilities including linear quasi-distributed runoff transforms, continuous simulation with soil moisture methods, and various snowmelt and evapotranspiration options. The software features a completely integrated work environment with a database, data entry utilities, a computation engine, and results reporting tools.
| Software Version | 4.0 |
|---|---|
| Release Date | December 2013 |
| Primary Function | simulate the precipitation-runoff processes of dendritic watershed systems |
| Supported Processes | unit hydrograph and hydrologic routing options |
It is designed to simulate the precipitation-runoff processes of dendritic watershed systems.
The main model components are basin models, meteorologic models, and control specifications.
The basin model represents the physical watershed.
It combines stream flow from upstream hydrologic elements by summing all inflows and assuming no storage.