|Model name||HEC-HMS model (the hydraulic engineering center 's-hydraulic modeling system)|
|Developer||United States Army Corps of Engineers Hydrological Engineering Center|
|Application scope||Basin scale|
|Related websites||Official website File|
|Operating conditions||windows， Sun Microsystems Solaris (SPARC)，Linux|
|update time||2018-04-11 00:00|
|Tag||evapotranspiration snowmelt precipitation-runoff simulator event-oriented infiltration models for continuous simulation|
HEC-HMS model is a watershed flood simulation system developed by the hydrological engineering center of the US Army Corps of engineers. It is a semi Distributed Rainfall Runoff Model with physical concept. According to the formation process of rainfall runoff, it is divided into four calculation parts: net rainfall process, direct runoff process, base flow and river confluence, which are mainly used to simulate runoff process in tree basin.
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