Hydrologic Modeling System HEC-HMS Technical Reference Manual is a computer software technical reference manual.
The Hydrologic Modeling System (HEC-HMS) is a computer program designed to simulate precipitation-runoff processes in dendritic watershed systems. It supersedes the HEC-1 system and includes various mathematical models for simulating precipitation, evapotranspiration, infiltration, excess precipitation transformation, baseflow, and open channel routing. A versatile parameter estimation option is also included to assist in calibrating the various models.
This technical reference manual details the mathematical models included in the computer program, including equation derivations and solution algorithms. It provides guidance on how and when to use the various models, as well as methods for estimating model parameters using measured field data, empirical relationships, and the parameter estimation option.
The system is designed to simulate the precipitation-runoff processes of dendritic watershed systems.
The program includes models for simulating precipitation, evapotranspiration, infiltration, excess precipitation transformation, baseflow, and open channel routing.
The public reporting burden is estimated to average one hour per response.