HEC-HMS
HEC-HMS
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HEC-GeoHMS
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The Hydrologic Modeling System (HEC-HMS) is designed
to simulate the precipitation-runoff processes of dendritic
watershed systems. It is designed to be applicable in a wide range
of geographic areas for solving the widest possible range of
problems. This includes large river basin water supply and flood
hydrology, and small urban or natural watershed runoff. Hydrographs
produced by the program are used directly or in conjunction with
other software for studies of water availability, urban drainage,
flow forecasting, future urbanization impact, reservoir spillway
design, flood damage reduction, floodplain regulation, and systems
operation.
The program is a generalized modeling system capable of representing
many different watersheds. A model of the watershed is constructed
by separating the hydrologic cycle into manageable pieces and
constructing boundaries around the watershed of interest. Any mass
or energy flux in the cycle can then be represented with a
mathematical model. In most cases, several model choices are
available for representing each flux. Each mathematical model
included in the program is suitable in different environments and
under different conditions. Making the correct choice requires
knowledge of the watershed, the goals of the hydrologic study, and
engineering judgment.
The program features a completely integrated work environment
including a database, data entry utilities, computation engine, and
results reporting tools. A graphical user interface allows the
seamless movement between the different parts of the program.
Program functionality and appearance are the same across all
supported platforms.