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Hydrologic Modeling with HEC-HMS (March 2021)
The course provides an introduction to the Hydrologic Modeling System, HEC-HMS, focusing both on using the program and performing watershed studies. The course starts with a summary and overview of the program and the mechanics of constructing watershed models. Then, components of the software are studied in detail. Major modules include GIS tools, data entry, historic precipitation approaches, computing infiltration and excess surface runoff, transforming excess precipitation to runoff, baseflow, and channel routing. Parameter estimation techniques are taught throughout with instruction about model calibration. Instruction material is supported with workshops that illustrate the basic steps of building a model for project applications. A final project is included that ties together topics to create a calibrated model from scratch.
The following table provides links to YouTube videos for all lectures. Links are provided to the workshop pages located in the HEC-HMS Tutorials and Guides space. All workshop files can be downloaded from the workshops pages as well. Finally, all Power Point files are included below and can be downloaded for reference. You will need HEC-HMS version 4.8 or newer to open the workshop files. You can download the software from https://www.hec.usace.army.mil/software/hec-hms/downloads.aspx.
An archived copy of all the workshop instructions (Workshop Instructions.zip) and workshop files (Initial Workshop Files.zip) can be downloaded from here.
Module | Subcomponents with Links | Power Point Files |
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Lecture 1: Overview of Hydrologic Modeling for Studies | ||
Lecture 2: Introduction to HEC-HMS | ||
Workshop 1: Creating a Simple Model | 1. Introduction 3. Creating a New Meteorologic Model 4. Creating a New Control Specifications | |
Lecture 3: HEC-HMS GIS Delineation Tools | a) Georeference Elements using Shapefiles b) Terrain Data and other Helpful GIS Datasets c) HEC-HMS GIS Data Management d) Building Walls and Burning Streams e) Automated Subbasin and Reach Delineation f) Customize Subbasin and Reach Delineation | L 3 a Georeference Elements using Shapefiles.pptx L 3 b Terrain Data and other Helpful GIS Datasets.pptx L 3 c HEC-HMS GIS Data Management.pptx L 3 d Building Walls and Burning Streams.pptx L 3 e Automated Subbasin and Reach Delineation.pptx L 3 f Customize Subbasin and Reach Delineation.pptx |
Lecture 4: GIS Parameter Estimation Tools | ||
Lecture 5: Shared Data Components | b) Paired Data c) Gridded Data | |
Workshop 2: Creating a Georeferenced Model using HEC-HMS GIS Tools | 1. Introduction 2. Creating and Linking Terrain Data into a Basin Model 3. Preprocessing Terrain Data to Delineate Subbasin and Reach Elements 4. Using Merge and Split Tools to Customize Subbasin and Reach Delineation | |
Workshop 3: Applying HEC-HMS GIS Parameter Estimation Tools | 1. Introduction | |
Workshop 4: Introduction to Shared Component Data | 1. Introduction | |
Lecture 6: Meteorologic Models - Historic Precipitation | a) Meteorologic Model Overview c) Gage Weights | |
Lecture 7: Loss Rate Methods | ||
Lecture 8: Transform Methods | ||
Workshop 5: Meteorologic Models for Historical Precipitation | 1. Introduction 2. Gage Weights Precipitation Method | |
Workshop 6: Applying Loss Methods in HEC-HMS | 1. Introduction 2. Applying the Initial Constant Loss Method | |
Workshop 7: Estimating Clark Unit Hydrograph Parameters | 1. Introduction 2. Estimating Time of Concentration and Storage Coefficient 3. Time and Concentration and Storage Coefficient Impacts to the Hydrograph | |
Lecture 9: Baseflow Simulation | b) Applying the Recession Baseflow Method | |
Lecture 10: Channel Routing Techniques | a) Introduction to Modeling Open Channel Flow within HEC-HMS b) Lag Method | |
Lecture 11: Model Calibration | L 11 a Calibration Theory.pptx | |
Workshop 8: Applying Baseflow Methods in HEC-HMS | 1. Introduction | |
Workshop 9: Applying Reach Routing Methods within HEC-HMS | 1. Introduction 2. Applying the Lag Routing Method | |
Workshop 10: Calibrating a Simple HEC-HMS Model: | 1. Introduction 2. Populate Initial Parameters | |
Lecture 12: Model Calibration - Complex Studies | ||
Project: Develop a Calibrated Model from Scratch | Project Steps
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