Auto-calibration of HEC-HMS Hydrologic Model

This video describes how to perform automatic calibration of a HEC-HMS Model created for Cedar Creek watershed in Indiana. By watching this video you will learn how to: (1) Open an already created HEC-HMS Model; (2) Create optimization trial in HEC-HMS for model calibration; (3) Add parameters and their specifications to include in optimization; and (4) Run optimization trial and visualize calibration results.
A playlist on how to create a HEC-HMS model is available here: • Hydrologic Modeling us...

[@hydromanor]

This video clearly explains how to calibrate an automatic model. Thank you for taking the time to produce this video which is very useful for new hydrological modeling developers.

[@Dr.Ali.shalan]

شكراً لك لقد استفدنا منك كثيراً عرض جميل وواضح

[@hydrologyvideos8253]

شكرا

[@bakayokosiaka8186]

Thank you Sir

[@narasayya1]

Thank you sir...

[@samsonfissehaye7807]

You are amazing

[@muhammadzeeshan1752]

thanks alot sir

[@joshbanner9813]

Hey, i have an issue that is coming always whenever I am checking the results after running the model , the results indicate no values for discharge and volume and also some graphs do not show up , what would you think is the problem causing that ?

[@hydrologyvideos8253]

make sure your initial abstraction is set to zero

[@TogbeCaroline]

Hello,
i have a problem with my hydrological model.
when i run the optimization, my optimization Nash values display 0 and so does the RMSE. however, the simulated hydrographs fit perfectly. what can i do to solve this problem, please?
my production function: SCS curve number
my transfer function: SCS unit hydrograph
my routing function: Lag

[@hydrologyvideos8253]

sometimes it may be issue with the program or HMS interface. You can download the time series data and compute the NS and RMSE by yourself. If the hydrographs match well, you should get reasonable values of your metrics. Hope this helps. what version of HEC-HMS are you using? the newest versions are a problem many times.

[@shrutigore6073]

I have done with Simulation run, but for Optimization run, I am unable to save the start date and end date, Please resolve this query, thats why I am unable to run Optimization

[@hydrologyvideos8253]

make sure you are using correct format. what version are you using. sometimes the latest version of the model has bugs so try a previous version

[@kameliasari3150]

Thank you so much Sir. But, can i ask your email? I want to ask my calibration for my thesis🙏