HEC-RTS 3.1.1 is now available!

HEC-RTS (Real Time Simulation) is a comprehensive data acquisition and hydrologic modeling system for short-term decision support of water control operations in real time. It encompasses data collection, validation and transformation, data storage, visualization, real time model simulation for decision-making support, and data dissemination.

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HEC-EFM 5.0 is now available!

The Ecosystem Functions Model (HEC-EFM) is designed to help study teams determine ecosystem responses to changes in the flow regime of a river or connected wetland. HEC-EFM analyses involve: 1) statistical analyses of relationships between hydrology and ecology, 2) hydraulic modeling, and 3) use of Geographic Information Systems (GIS) to display results and other relevant spatial data.

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HEC-EFM Plotter 3.0 is now available!

HEC-EFM Plotter is designed to help users view, navigate, and interpret output generated by HEC-EFM. Available outputs are automatically imported as a series of"Standard Plots" for the flow regimes and relationships being analyzed in HEC-EFM. HEC-EFM Plotter only imports HEC-EFM outputs that are written to HEC-DSS; Output settings are managed in HEC-EFM.

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HEC-HMS 4.6 is now available!

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.

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HEC-DSS 7 is now available!

HEC-DSS, is a database system designed to efficiently store and retrieve scientific data that is typically sequential. Such data types include, but are not limited to, time series data, curve data, spatial-oriented gridded data, and others. The system was designed to make it easy for users and application programs to retrieve and store data. HEC-DSS is incorporated into most of HEC’s major application programs.

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