http://www.hec.usace.army.mil/software/ Listing of Release Dates of HEC software Tuesday, 13 March 2013 13:00 PST en-us http://www.hec.usace.army.mil/software/hec-geoefm/ Tue, 12 Mar 2013 16:00 GMT HEC-GeoEFM 1.0 has been updated to support ArcMap 10.0 and 10.1. HEC-GeoEFM http://www.hec.usace.army.mil/software/hec-ras/hec-georas.html Mon, 4 Feb 2013 16:00 GMT HEC-GeoRAS is a GIS extension for use with ArcGIS 10.1 that provides the user with a set of procedures, tools, and utilities for the preparation of GIS data for import into HEC-RAS and generation of GIS data from RAS output. HEC-GeoRAS http://www.hec.usace.army.mil/software/hec-efm/ Tue, 8 Jan 2013 13:00 PST 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 http://www.hec.usace.army.mil/software/hec-efm-plotter/ Tue, 8 Jan 2013 13:00 PST 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 http://www.hec.usace.army.mil/software/hec-fia Thu, 15 Nov 2012 13:00 PST The HEC-FIA (Flood Impact Analysis) software package analyzes the consequences from a flood event. It calculates damages to structures and contents, losses to agriculture, and estimates the potential for life loss. HEC-FIA http://www.hec.usace.army.mil/software/hec-rpt Mon, 30 Jul 2012 13:00 PST The Regime Prescription Tool (HEC-RPT) is designed to facilitate entry, viewing, and documentation of flow recommendations in real-time, public settings. HEC-RPT http://www.hec.usace.army.mil/software/hec-ras/hec-georas.html Fri, 15 Jun 2012 16:00 GMT HEC-GeoRAS is a GIS extension for use with ArcGIS 10 that provides the user with a set of procedures, tools, and utilities for the preparation of GIS data for import into HEC-RAS and generation of GIS data from RAS output. HEC-GeoRAS http://www.hec.usace.army.mil/software/hec-ras/hec-georas.html Fri, 15 Jun 2012 16:00 GMT Updated to fix bug with Elevation Update tool. HEC-GeoRAS http://www.hec.usace.army.mil/software/hec-resprm/ Fri, 11 May 2012 16:00 GMT HEC-ResPRM is a reservoir system operations optimization software package developed to assist planners, operators, and managers with reservoir operation planning and decision-making. HEC-ResPRM uses network flow optimization to suggest an idea of the best outcome that can be expected for the system based on any particular prioritization of the system objectives and given inflow time-series. HEC-ResPRM http://www.hec.usace.army.mil/software/hec-gridutil/ Tue, 18 Oct 2011 16:00 GMT HEC-GridUtil is designed to provide viewing, processing, and analysis capabilities for gridded data sets stored in HEC-DSS format (Hydrologic Engineering Center's Data Storage System). Sequences of grids typically approximate the variation through space of a quantity measured varying through fixed-intervals of time at fixed locations. The predominant types of gridded data in DSS are regular-interval time-series of hydrologic variables, such as Stage 3 NEXRAD (Next Generation Radar) precipitation or mean daily air temperatures throughout a basin. HEC-GridUtil http://www.hec.usace.army.mil/software/hec-ras/hec-georas.html Wed, 05 Oct 2011 16:00 GMT HEC-GeoRAS is a GIS extension for use with ArcGIS 10 that provides the user with a set of procedures, tools, and utilities for the preparation of GIS data for import into HEC-RAS and generation of GIS data from RAS output. HEC-GeoRAS http://www.hec.usace.army.mil/software/hec-geohms Wed, 05 Oct 2011 16:00 GMT The Geospatial Hydrologic Modeling Extension (HEC-GeoHMS) has been developed as a geospatial hydrology toolkit for engineers and hydrologists with limited GIS experience. HEC-GeoHMS uses ArcView and the Spatial Analyst extension to develop a number of hydrologic modeling inputs for the Hydrologic Engineering Center's Hydrologic Modeling System, HEC-HMS. HEC-GeoHMS http://www.hec.usace.army.mil/software/hec-dss/plug-ins.htm Tue, 15 Jun 2011 15:00:00 GMT Retrieve and import data from SnoTel gages from the NRCS web site. HEC-DSSVue http://www.hec.usace.army.mil/software/hec-hms/ Fri, 01 Oct 2010 16:00 GMT HEC's Hydrologic Modeling System (HEC-HMS) is designed to simulate the precipitation-runoff processes of dendritic watershed systems. It is designed to be applicable in a wide range of geographic areas for solving the widest possible range of problems. This includes large river basin water supply and flood hydrology, and small urban or natural watershed runoff. Hydrographs produced by the program are used directly or 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. HEC-HMS http://www.hec.usace.army.mil/software/hec-dss/hecdssvue-dssvue.htm Mon, 07 Jun 2010 23:00 GMT Latest release of HEC-DSSVue for Linux. HEC-DSSVue http://www.hec.usace.army.mil/software/hec-fda/ Mon, 26 Apr 2010 23:00 GMT Version 1.2.5 of the Flood Damage Reduction Analysis (HEC-FDA) software is now available. This version is an update to Version 1.2.4, which was released to the general public in November of 2008. Several fixes have been made in Version 1.2.5 which are listed: ● Several modifications were made to improve the speed of the software when a study includes a large number of damage reaches and plans. ● Improvement in the speed of deleting records. ● The trace output from the EAD calculations was difficult to read and understand. Changes were done that reduced the amount of trace output, and the format was redone to make the trace output more understandable. ● Improved speed when importing ASCII tab-delimited files. ● Modification to stage-probability graphical curves when stage is negative or zero. ● Modifications for adjusting the uncertainty about graphical frequency curves. HEC-FDA http://www.hec.usace.army.mil/software/hec-dss/hecdssvue-dssvue.htm Sat, 03 Apr 2010 12:00:00 GMT HEC-DSSVue is a visual utilities program that allows users to plot, tabulate, edit, and manipulate data in a HEC-DSS database file. The graphics produced by HEC-DSSVue are highly customizable and can be saved in various formats, including “jpeg” and “png” (portable network graphics), or for printing or copying to the clipboard for inclusion in reports. HEC-DSSVue incorporates over fifty mathematical functions that were available in the DSSMATH program. Along with these functions, HEC-DSSVue provides several utility functions that provide a means to enter data sets into a database, rename data set names, copy data sets to other HEC-DSS database files, and delete data sets. HEC-DSSVue http://www.hec.usace.army.mil/software/hec-ras/ Mon, 08 Mar 2010 18:00:00 GMT HEC's River Analysis System (HEC-RAS) you to perform one-dimensional steady and unsteady flow calculations. Sediment Transport computations and Water Quality analysis will be added in future versions. HEC-RAS http://www.hec.usace.army.mil/software/hec-dss/plug-ins.htm Fri, 05 Feb 2010 18:00:00 GMT HEC-GeoDozer is an extension for use with ArcGIS, a general purpose Geographic Information System software program developed and copyrighted by the Environmental Systems Research Institute, Inc., (ESRI) Redlands, CA. The HEC-GeoDozer extension was developed to support the Hydrologic Engineering Center's Geospatial Hydrologic Modeling Extension (HEC-GeoHMS) by providing tools for editing terrain data. These tools can be used to mosaic multiple terrain tiles into one continuous Digital Elevation Model (DEM) and to reproject the DEM to the required coordinate system. HEC-GeoDozer http://www.hec.usace.army.mil/software/hec-dss/plug-ins.htm Tue, 22 Dec 2009 15:00:00 GMT Retrieve and import data from SnoTel gages from the NRCS web site. HEC-DSSVue http://www.hec.usace.army.mil/software/hec-ras/hec-georas.html Thur, 17 Dec 2009 16:00 GMT HEC-GeoRAS is a GIS extension for use with ArcGIS 9.2 that provides the user with a set of procedures, tools, and utilities for the preparation of GIS data for import into HEC-RAS and generation of GIS data from RAS output. HEC-GeoRAS http://www.hec.usace.army.mil/software/hec-geohms Thur, 17 Dec 2009 16:00 GMT The Geospatial Hydrologic Modeling Extension (HEC-GeoHMS) has been developed as a geospatial hydrology toolkit for engineers and hydrologists with limited GIS experience. HEC-GeoHMS uses ArcView and the Spatial Analyst extension to develop a number of hydrologic modeling inputs for the Hydrologic Engineering Center's Hydrologic Modeling System, HEC-HMS. HEC-GeoHMS http://www.hec.usace.army.mil/software/hec-dss/plug-ins.htm Mon, 07 Dec 2009 15:00:00 GMT The USGS data retrieval plug-in is an optional capability that will retrieve daily historical and hourly real-time flows from the US Geological Survey web site and store that data into an HEC-DSS file. HEC-DSSVue http://www.hec.usace.army.mil/software/hec-efm/ Wed, 25 Nov 2009 22:00:00 GMT 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 http://www.hec.usace.army.mil/software/hec-efm-plotter/ Tue, 25 Nov 2009 21:55:00 GMT 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 http://www.hec.usace.army.mil/software/hec-hms/ Mon, 09 Nov 2009 17:05 GMT HEC's Hydrologic Modeling System (HEC-HMS) is designed to simulate the precipitation-runoff processes of dendritic watershed systems. It is designed to be applicable in a wide range of geographic areas for solving the widest possible range of problems. This includes large river basin water supply and flood hydrology, and small urban or natural watershed runoff. Hydrographs produced by the program are used directly or 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. HEC-HMS http://www.hec.usace.army.mil/software/hec-hms/ Tue, 03 Nov 2009 15:15 GMT HEC's Hydrologic Modeling System (HEC-HMS) is designed to simulate the precipitation-runoff processes of dendritic watershed systems. It is designed to be applicable in a wide range of geographic areas for solving the widest possible range of problems. This includes large river basin water supply and flood hydrology, and small urban or natural watershed runoff. Hydrographs produced by the program are used directly or 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. HEC-HMS http://www.hec.usace.army.mil/software/hec-dss/hecdssvue-dssvue.htm Fri, 23 Oct 2009 12:00:00 GMT HEC-DSSVue is a visual utilities program that allows users to plot, tabulate, edit, and manipulate data in a HEC-DSS database file. The graphics produced by HEC-DSSVue are highly customizable and can be saved in various formats, including “jpeg” and “png” (portable network graphics), or for printing or copying to the clipboard for inclusion in reports. HEC-DSSVue incorporates over fifty mathematical functions that were available in the DSSMATH program. Along with these functions, HEC-DSSVue provides several utility functions that provide a means to enter data sets into a database, rename data set names, copy data sets to other HEC-DSS database files, and delete data sets. HEC-DSSVue http://www.hec.usace.army.mil/software/hec-ras/hec-georas.html Fri, 25 Sep 2009 16:00 GMT HEC-GeoRAS is a GIS extension for use with ArcGIS 9.2 that provides the user with a set of procedures, tools, and utilities for the preparation of GIS data for import into HEC-RAS and generation of GIS data from RAS output. HEC-GeoRAS http://www.hec.usace.army.mil/software/hec-hms/ Fri, 11 Sep 2009 16:00 GMT HEC's Hydrologic Modeling System (HEC-HMS) is designed to simulate the precipitation-runoff processes of dendritic watershed systems. It is designed to be applicable in a wide range of geographic areas for solving the widest possible range of problems. This includes large river basin water supply and flood hydrology, and small urban or natural watershed runoff. Hydrographs produced by the program are used directly or 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. HEC-HMS http://www.hec.usace.army.mil/software/hec-geohms Tue, 08 Sep 2009 16:30:00 GMT The Geospatial Hydrologic Modeling Extension (HEC-GeoHMS) has been developed as a geospatial hydrology toolkit for engineers and hydrologists with limited GIS experience. HEC-GeoHMS uses ArcView and the Spatial Analyst extension to develop a number of hydrologic modeling inputs for the Hydrologic Engineering Center's Hydrologic Modeling System, HEC-HMS. HEC-GeoHMS http://www.hec.usace.army.mil/software/hec-ssp Fri, 29 May 2009 16:30:00 GMT HEC's Statistical Software Package (HEC-SSP) will ultimately combine all of the statistical analyses capabilities of HEC-FFA, STATS, REGFRQ and MLRP. The current version of HEC-SSP supports performing flood flow frequency analyses based on Bulletin 17B Guidelines. New features and additional capabilities will be added in future releases. HEC-SSP http://www.hec.usace.army.mil/software/hec-hms/ Tue, 23 Dec 2008 16:15 GMT HEC's Hydrologic Modeling System (HEC-HMS) is designed to simulate the precipitation-runoff processes of dendritic watershed systems. It is designed to be applicable in a wide range of geographic areas for solving the widest possible range of problems. This includes large river basin water supply and flood hydrology, and small urban or natural watershed runoff. Hydrographs produced by the program are used directly or 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. HEC-HMS http://www.hec.usace.army.mil/software/hec-fda/ Thur, 13 Nov 2008 12:00 GMT The Flood Damage Reduction Analysis (HEC-FDA) software developed by the US Army Corps of Engineers' Hydrologic Engineering Center (HEC) provides the capability to perform an integrated hydrologic engineering and economic analysis during the formulation and evaluation of flood risk management plans. HEC-FDA http://www.hec.usace.army.mil/software/hec-hms/ Tue, 21 Oct 2008 16:00 GMT HEC's Hydrologic Modeling System (HEC-HMS) is designed to simulate the precipitation-runoff processes of dendritic watershed systems. It is designed to be applicable in a wide range of geographic areas for solving the widest possible range of problems. This includes large river basin water supply and flood hydrology, and small urban or natural watershed runoff. Hydrographs produced by the program are used directly or 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. HEC-HMS http://www.hec.usace.army.mil/software/hec-dss/plug-ins.htm Thur, 04 Sep 2008 15:59 GMT The USGS data retrieval plug-in is an optional capability that will retrieve daily historical and hourly real-time flows from the US Geological Survey web site and store that data into an HEC-DSS file. HEC-DSSVue http://www.hec.usace.army.mil/software/hec-hms/ Thur, 03 Jul 2008 21:07 GMT HEC's Hydrologic Modeling System (HEC-HMS) is designed to simulate the precipitation-runoff processes of dendritic watershed systems. It is designed to be applicable in a wide range of geographic areas for solving the widest possible range of problems. This includes large river basin water supply and flood hydrology, and small urban or natural watershed runoff. Hydrographs produced by the program are used directly or 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. HEC-HMS http://www.hec.usace.army.mil/software/hec-efm/ Tue, 01 Jul 2008 22:00:00 GMT 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 http://www.hec.usace.army.mil/software/hec-ras/ Wed, 07 May 2008 13:00:00 GMT HEC's River Analysis System (HEC-RAS) you to perform one-dimensional steady and unsteady flow calculations. Sediment Transport computations and Water Quality analysis will be added in future versions. HEC-RAS http://www.hec.usace.army.mil/software/hec-hms/ Fri, 25 Apr 2008 17:00 GMT HEC's Hydrologic Modeling System (HEC-HMS) is designed to simulate the precipitation-runoff processes of dendritic watershed systems. It is designed to be applicable in a wide range of geographic areas for solving the widest possible range of problems. This includes large river basin water supply and flood hydrology, and small urban or natural watershed runoff. Hydrographs produced by the program are used directly or 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. HEC-HMS http://www.hec.usace.army.mil/software/hec-dss/plug-ins.htm Mon, 21 Apr 2008 15:58 GMT The USGS data retrieval plug-in is an optional capability that will retrieve daily historical and hourly real-time flows from the US Geological Survey web site and store that data into an HEC-DSS file. HEC-DSSVue http://www.hec.usace.army.mil/software/hec-ressim/ Wed, 09 May 2007 12:00:00 GMT HEC's Reservoir Simulation (HEC-ResSim) application will be the successor to the “HEC-5, Simulation of Flood Control and Conservation Systems” program. ResSim is comprised of a graphical user interface (GUI), a computational program to simulate reservoir operation, data storage and management capabilities, and graphics and reporting facilities. The Data Storage System, HEC-DSS is used for storage and retrieval of input and output time-series data. HEC-ResSim http://www.hec.usace.army.mil/software/hec-dss/plug-ins.htm Tue, 12 Feb 2007 12:00:00 GMT The NCDC data import plug-in is an optional capability to import precipitation data in the 3240 and 3260 formats. This plug-in does not retrieve data from the NCDC web site, it only imports data that has been retrieved from that site or loaded from some other source, such as a published CD ROM. HEC-DSSVue http://www.hec.usace.army.mil/software/hec-rpt Thur, 11 Jan 2007 13:00 PST The Regime Prescription Tool (HEC-RPT) is designed to facilitate entry, viewing, and documentation of flow recommendations in real-time, public settings. HEC-RPT http://www.hec.usace.army.mil/software/hec-ras/ Thursday, 21 Dec 2006 12:00:00 GMT HEC's River Analysis System (HEC-RAS) you to perform one-dimensional steady and unsteady flow calculations. Sediment Transport computations and Water Quality analysis will be added in future versions. HEC-RAS http://www.hec.usace.army.mil/software/hec-dss/plug-ins.htm Fri, 27 Oct 2006 12:00:00 GMT The USGS data retrieval plug-in is an optional capability that will retrieve daily historical and hourly real-time flows from the US Geological Survey web site and store that data into an HEC-DSS file. HEC-DSSVue http://www.hec.usace.army.mil/software/hec-ssp Mon, 05 Jun 2006 12:00:00 GMT HEC's Statistical Software Package (HEC-SSP) will ultimately combine all of the statistical analyses capabilities of HEC-FFA, STATS, REGFRQ and MLRP. The current version of HEC-SSP supports performing flood flow frequency analyses based on Bulletin 17B Guidelines. New features and additional capabilities will be added in future releases. HEC-SSP http://www.hec.usace.army.mil/software/hec-rpt Tue, 03 Oct 2006 13:00 PST The Regime Prescription Tool (HEC-RPT) is designed to facilitate entry, viewing, and documentation of flow recommendations in real-time, public settings. HEC-RPT http://www.hec.usace.army.mil/software/hec-dss/hecdssvue-dssvue.htm Mon, 25 Sep 2006 12:00:00 GMT HEC-DSSVue is a visual utilities program that allows users to plot, tabulate, edit, and manipulate data in a HEC-DSS database file. The graphics produced by HEC-DSSVue are highly customizable and can be saved in various formats, including “jpeg” and “png” (portable network graphics), or for printing or copying to the clipboard for inclusion in reports. HEC-DSSVue incorporates over fifty mathematical functions that were available in the DSSMATH program. Along with these functions, HEC-DSSVue provides several utility functions that provide a means to enter data sets into a database, rename data set names, copy data sets to other HEC-DSS database files, and delete data sets. HEC-DSSVue http://www.hec.usace.army.mil/software/hec-dss/plug-ins.htm Mon, 05 Jun 2006 12:00:00 GMT The Precision Converter plug-in for HEC-DSSVue will convert files or data sets from single precision to double precision or from double precision to single precision. It can also squeeze the file afterward to removed unused space. This plug-in is useful with HEC-HMS Version 3.0, which stores all of its data in HEC-DSS in double precision, and a user wants to use that data with an older program that reads from HEC-DSS, but can only read single precision values. Older versions of HEC-RAS could not read double precision data. HEC-DSSVue http://www.hec.usace.army.mil/software/hec-hms Mon, 03 Apr 2006 12:00:00 GMT HEC's Hydrologic Modeling System (HEC-HMS) is designed to simulate the precipitation-runoff processes of dendritic watershed systems. It is designed to be applicable in a wide range of geographic areas for solving the widest possible range of problems. This includes large river basin water supply and flood hydrology, and small urban or natural watershed runoff. Hydrographs produced by the program are used directly or 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. HEC-HMS http://www.hec.usace.army.mil/software/hec-dss/plug-ins.htm Mon, 02 Jan 2006 12:00:00 GMT The Microsoft Excel Tabulation Tool Plug-in allows HEC-DSSVue to copy data from an HEC-DSS database file directly into Microsoft Excel. This plug-in is for HEC-DSSVue Version 1.2.x and any version of Microsoft Excel. HEC-DSSVue http://www.hec.usace.army.mil/software/hec-ras/hec-georas.html Mon, 02 Jan 2006 12:00:00 GMT HEC-GeoRAS is a GIS extension for use with ArcGIS 9 that provides the user with a set of procedures, tools, and utilities for the preparation of GIS data for import into HEC-RAS and generation of GIS data from RAS output. HEC-GeoRAS http://www.hec.usace.army.mil/software/hec-ras/hec-georas.html Mon, 02 Jan 2006 12:00:00 GMT HEC-GeoRAS is a GIS extension for use with ArcGIS 8.3 that provides the user with a set of procedures, tools, and utilities for the preparation of GIS data for import into HEC-RAS and generation of GIS data from RAS output. HEC-GeoRAS http://www.hec.usace.army.mil/software/hec-dss/hecdssvue-dssvue.htm Mon, 01 Aug 2005 12:00:00 GMT HEC-DSSVue is a visual utilities program that allows users to plot, tabulate, edit, and manipulate data in a HEC-DSS database file. The graphics produced by HEC-DSSVue are highly customizable and can be saved in various formats, including “jpeg” and “png” (portable network graphics), or for printing or copying to the clipboard for inclusion in reports. HEC-DSSVue incorporates over fifty mathematical functions that were available in the DSSMATH program. Along with these functions, HEC-DSSVue provides several utility functions that provide a means to enter data sets into a database, rename data set names, copy data sets to other HEC-DSS database files, and delete data sets. HEC-DSSVue http://www.hec.usace.army.mil/software/hec-ras Sat, 02 May 2005 12:00:00 GMT HEC's River Analysis System (HEC-RAS) you to perform one-dimensional steady and unsteady flow calculations. Sediment Transport computations and Water Quality analysis will be added in future versions. HEC-RAS http://www.hec.usace.army.mil/software/hec-dss/plug-ins.htm Mon, 02 May 2005 12:00:00 GMT The CDEC data retrieval plug-in is an optional capability that will retrieve data from the California Data Exchange web site and store that data into an HEC-DSS file. HEC-DSSVue http://www.hec.usace.army.mil/software/hec-dss/hecdss_msexcel_addin.htm Mon, 03 May 2004 12:00:00 GMT The HEC-DSS MS Excel Data Exchange Add-In is a Visual Basic Application for retrieving and storing both regular-interval time series and paired data directly from Excel to an HEC-DSS database file. Data sets to retrieve are selected from a catalog listing directly available from MS Excel. For time series data, an optional time window can be specified to select portions of a DSS record or to span several records. The exchange of irregular-interval time series data has not been implemented at this time. HEC-DSSVue http://www.hec.usace.army.mil/software/hec-geohms Mon, 05 Apr 2004 12:00:00 GMT The Geospatial Hydrologic Modeling Extension (HEC-GeoHMS) is a software package for use with the ArcView Geographic Information System. GeoHMS uses ArcView and Spatial Analyst to develop a number of hydrologic modeling inputs. Analyzing digital terrain information, HEC-GeoHMS transforms the drainage paths and watershed boundaries into a hydrologic data structure that represents the watershed response to precipitation. In addition to the hydrologic data structure, capabilities include the development of: grid-based data for linear quasi-distributed runoff transformation (ModClark), the HEC-HMS basin model, physical watershed and stream characteristics, and background map file. HEC-GeoHMS http://www.hec.usace.army.mil/software/hec-ras/hec-georas.html Mon, 05 May 2003 12:00:00 GMT HEC-GeoRAS is a GIS extension for use with ArcView 3.2 that provides the user with a set of procedures, tools, and utilities for the preparation of GIS data for import into HEC-RAS and generation of GIS data from RAS output. HEC-GeoRAS http://www.hec.usace.army.mil/software/hec-fda/index.html Mon, 06 Mar 2000 12:00:00 GMT HEC’s Flood Damage Analysis (HEC-FDA) computer program is designed to assist Corps of Engineers study team members in using risk-based analysis methods for flood-damage-reduction studies as required by the Corps (EM 1110-2-1419). The approach explicitly incorporates descriptions of uncertainty of key parameters and functions into project benefit and performance analyses. HEC-FDA