Explore the evolution and development of HEC-SSP, a software tool by the US Army Corps of Engineers, from its historical origins in the 1970s to its recent updates in analytical capabilities and user experience enhancements. Learn about the key team members behind the development and the new tools i

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Explore the transformative methods within HEC-HMS hydrologic modeling, including unit hydrograph derivation, excess precipitation transformation, hydrograph illustration, surface transform methods, and concepts like the kinematic wave and 2D diffusion wave. Learn about the unit hydrograph, kinematic

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The Center for Impact Finance Research at Rothschild & Co focuses on conducting independent research to understand the impact of firms' non-financial performance on their financial performance, the role of finance in addressing current challenges, and methods to measure non-financial performance. Th

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This presentation delves into flood risk assessment using HEC-FDA software, covering topics such as defining flood risk, components of uncertainty, consequences of flood risk, and methods to assess flood risk including hydrology, hydraulics, geotechnical, and economics. It explores the intersection

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Explore the differences between hydrologic and hydraulic routing, learn about open channel flow processes, and delve into channel routing within HEC-ResSim. Discover various reach routing methods, parameter estimation techniques, and calibration approaches. Dive into the Muskingum method and its app

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HEC-SSP, a software developed by the US Army Corps of Engineers, has evolved over the years to meet the statistical needs of the Corps. From its inception in FY2005 to the latest version, the software has seen significant enhancements in capabilities such as General Frequency, Curve Combination anal

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This lecture covers the theory of storage-yield analyses, focusing on understanding yield, types of yield like firm yield, methods to calculate yield, and the importance of storing water for re-distribution. It delves into within-year and over-year reservoir storage concepts, illustrating the minimu

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Explore the two main categories of scripts in HEC-ResSim - scripts executed outside simulations and scripts executed during simulations. Learn about the functions and properties of each type, including scripted rules and state variable scripts. Discover how these scripts compute flow limits, store m

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Learn about managing gridded data in HEC-DSSVue, including how grids represent spatial data, storing data in DSS, naming conventions, tools for manipulation, and more. Explore the importance of grids in hydrologic modeling and the application of spatial data in HEC-HMS and HEC-RAS.

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Explore the innovative methods and practical applications of Stochastic Storm Transposition (SST) in the context of HEC-HMS. Delve into the history, fundamentals, simulation procedures, and benefits of using SST for watershed-averaged precipitation frequency analysis. Learn about the non-parametric

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Efficiently manage GIS data in HEC software by organizing background shapefiles, saving files in relevant directories, and utilizing relative pathnames. Understand the contents of basin files, GIS directories, and the step-by-step process involved in the delineation of elements within a project.

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This report delves into the HEC API scripting involving DSS files, DataContainer, HecTime, and HecMath. It covers important classes, accessing files, and the distinction between DataContainers and HecMath objects. Additionally, it compares Python and Java, highlighting their differences in interpret

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Learn about utilizing gridded precipitation data for hydrologic modeling with HEC-HMS. Explore the advantages of spatially distributed precipitation sources such as RADAR and gauge comparisons, and understand the various national and regional products available. Discover utilities for converting and

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Parameter Expression Calculator within HEC-HMS offers a convenient tool to estimate loss, transform, and baseflow parameters using GIS data. It includes various options such as Deficit and Constant Loss, Green and Ampt Transform, Mod Clark Transform, Clark Transform, S-Graph, and Linear Reservoir. U

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Significant modifications have been made to the HEC-HMS meteorologic model to enhance modeling tasks' ease and intuitiveness. The Met Model Restructure updates in versions 4.9 to 4.11 streamline meteorologic processes, introduce new features like automatic linkages and zonal editors for snowmelt, an

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Delve into the world of hydrologic modeling with HEC-HMS through a detailed presentation by experts Greg Karlovits, Emily Moe, and Daniel Black. Explore meteorologic models, atmospheric boundary conditions, basin modeling, and simulation runs in this informative slide series.

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Explore the various canopy and surface methods utilized in HEC-HMS for managing water resources. Learn about canopy interception, evapotranspiration, common parameter values, and factors affecting losses. Delve into available methods, canopy storage values, and surface depression storage. Enhance yo

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Reach characteristics play a crucial role in hydrological modeling using HEC-HMS. Georeferenced reaches are essential for computing reach characteristics like slope, sinuosity, relief, and more. The process involves pre-processing drainage data before detailed reach characteristics can be obtained.

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Baseflow in HEC-HMS plays a crucial role in modeling runoff volume, consisting of groundwater flow components like interflow and baseflow. Different approaches are used to model baseflow, with HEC-HMS currently incorporating conceptual methods. The response times for interflow and baseflow differ, i

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Explore the two categories of scripts in HEC-ResSim - executed outside simulations and during simulations. Learn about static scripts for pre-processing, running simulations, and post-processing, along with the tools like Script Selector and Script Editor for script execution and editing.

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This content focuses on the role of hazard curves in dam safety risk assessments, emphasizing the level of effort required for their development and the use of HEC software. It highlights the three components of risk (hazard, performance, consequence), discusses hazardous loads and potential consequ

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Explore the functionalities of HEC-ResSim including creating, composing, and setting up alternatives for hydrological engineering simulations. Learn about ResSim alternatives, simulation modules, and the alternative editor in detail.

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Subbasin characteristics play a crucial role in hydrological modeling within HEC-HMS. Before computing these characteristics, the basin model must have georeferenced subbasins in the GIS. Various parameters such as basin slope, relief, elongation ratio, drainage density, and flowpath lengths and slo

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Exploring the concept of gage weights and precipitation methods in hydrologic modeling using the HEC-HMS software. Dive into the pros and cons of flexible gage weighting, calibration processes, and best practices for estimating time and depth weights. Discover how to set up a gage weights model, inc

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Joan Klipsch, a Sr. Hydraulic Engineer at the Hydrologic Engineering Center, details the process of using NWS-RFC inflows in a CWMS forecast for the USACE Raystown Dam project on the Juniata River. The article provides insights on data requirements, setting up ResSim alternatives, RAS alternative co

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