HEC-HMS

The Hydrologic Modeling System (HEC-HMS) is designed to simulate the complete hydrologic processes of dendritic watershed systems. The software includes many traditional hydrologic analysis procedures such as event infiltration, unit hydrographs, and hydrologic routing. HEC-HMS also includes procedures necessary for continuous simulation including evapo-transpiration, snowmelt, and soil moisture accounting. Advanced capabilities are also provided for gridded runoff simulation using the linear quasi-distributed runoff transform (ModClark). Supplemental analysis tools are provided for model optimization, forecasting streamflow, depth-area reduction, assessing model uncertainty, erosion and sediment transport, and water quality.

The software features a completely integrated work environment including a database, data entry utilities, computation engine, and results reporting tools. A graphical user interface allows the user seamless movement between the different parts of the software. Simulation results are stored in HEC-DSS (Data Storage System) and can be used 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.

https://www.hec.usace.army.mil/software/hec-hms/

The purpose of this abstract is to provide a layout for example files required for housing a complete HEC-HMS model for archving and re-use.

Software

HEC-HMS Software

Version

4.9

Access Level

Public

Model Type

Coupled

Model Category

HYDROLOGY

Keywords

HEC
Hydrology
HMS
Software
USACE
Frequency
Model

Status Tag

Draft

Input Files

TitleDescriptionFile extensionStandard variablesRequired?
Project fileProject file.hms[]True
Data filePrecipitation data.DSS[]True
GaugesContains the type of data, units, start and end time, and pathname..gage[]True
PrecipitationContains the list of gages, their spatial position, and the location of the data on the .dss file, relating the gages to the sub-basins, and providing information about the weights of each gage. .precip[]False

Output Files

Metadata record information

Created At 2024-05-14t14:53:38.751747+00:00
Created By kushal.regmi@mbakerintl.com
Access Level Public

  • 2025-08-25 15:35:40.490000 - edit - fmessina
  • 2025-08-25 15:34:39.152000 - edit - fmessina
  • 2025-08-25 15:32:37.692000 - edit - fmessina
  • 2025-08-25 15:31:22.842000 - edit - fmessina
  • 2025-08-25 15:31:12.673000 - edit - fmessina
  • 2025-08-25 15:31:01.793000 - edit - fmessina
  • 2025-08-25 15:29:00.612000 - edit - fmessina
  • 2024-10-31 21:16:09.054000 - edit - fmessina