Objectives
At the end of the course, the student will have the abilities to:
Know the HEC HMS environment.
Learn concepts about the water cycle, precipitation-runoff processes and water balance.
Understand the mechanism of the HEC-HMS tools.
Simulate hydrological models in watersheds.
Course content
The sessions consist of a theoretical and practical part. The development of the theory and applications of this course is shown below grouped by session:
Session 1
Theoretical Part
Climate system
Water cycle
Practical part
Installation HEC HMS 4.8.
Introduction to HEC HMS 4.8
An overview of the HEC HMS model.
Construction of a basic hydrological model.
Analysis of the hydrological components of the watershed and simulation of the model.
Session 2
Theoretical Part
Watershed water balance
Watershed modeling.
Practical part
Creation of a model of the basin divided on two sub-basins (high and low part).
Input of observed data from a gauging point.
Setting up and simulation the hydrologic response of 8 hour storms over a 20 hour period.
Optimization of hydrological parameters.
Analysis of maximum flow rates and flow development over time.
Session 3
Theoretical Part
Runoff generation from precipitation
Practical part
Construction the hydrological model divided on 3 sub-basins.
Setting up data Loss, Transform and baseflow methods.
Specifying hyetograph of each sub-basins.
Daily simulation of the hydrological model.
Flow analysis in the upper part of the watershed.
Session 4
Theoretical Part
Hydrological routing in HEC-HMS
Practical part
Creation of a basin model with 3 sub-basins.
Setting up the Muskingum routing method.
Insertion of meteorologic model according to the temporal distribution precipitation with gage weight tools.
Calculation of hydrographs associated with a return period in a basin. The flow of avenues is defined for a return period of 100 and 500 years.
Analysis of flow for return periods of 100 and 500 years.
Session 05
Practical part
Creation of a base flow hydrological model in a micro-basin with the HEC-HMS software
Setting up Loss method as Soil Moisture Accounting according to physical properties: Field capacity, wilting point and the infiltration speed.
Implementation the parameters Clark Unit Hydrograph: Time of Concentration and Storage Coefficient.
Analysis graphical results
Creation a hydrological model with a reservoir.
Insertion data type like Storage-Discharge Functions.
Insertion temporal rainfall information
Analysis flow and storage results of reservoir
Session 06
Practical part
Creation of the hydrological model in a sub-basin differentiating the main tributaries.
Setting up data Loss, Transform and baseflow methods.
Insertion data observed flow of each hydrological element.
Implementation of an optimization trial to estimate parameters: SCS Unit Hydrograph - Lag Time and SCS Curve Number - Initial Abstraction.
Computing Results for a Trial
Visualization observed vs. simulated flow.
Final exam
Methodology
Here are some details of each methodology:
- Manuals and files for the exercises will be delivered.
- The course will be developed by videos on private web platform.
- There is online support for questions regarding the exercises developed in the course.
- Digital certificate available at the end of the course.
- Video of the classes will be available for 2 months.
- To receive the digital certificate you must submit the exams after 1 month.
- Teacher: Saul Montoya