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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HEC-FIA 3.1 is now available!

The HEC-FIA software enables users to calculate flood damage in terms of direct and indirect economic, agricultural and life loss estimates for a single flood event. The analysis period is the duration of a singel flood event. The software calculates agricultural damage and urban damage for use after an event and summarizes the results in reports. HEC-FIA can also look at dam failure events and evaluate the consequences to support risk assessments for dams. HEC-FIA uses Simplified LIFESim to evaluate the impacts to human life.

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