Manual Calibration of HEC-HMS Hydrologic Model

[@tuesdaygood7336]

Thanks for sharing. Actually it has been a while since I've manually done model calibration; as GeoHECHMS has automated this feature.

[@Elin-online]

It was very useful- thank you very much

[@hovinmilanes8770]

how can i let hms compute for discharge data

[@kardussenpai2650]

thankyou this is really help full bro

[@kardussenpai2650]

can I use this method for daily rainfall data? somehow my graphic is below the observed data

[@hydrologyvideos8253]

How long is your event? The CN method in HEC-HMS is not recommended for daily data.

[@kardussenpai2650]

@@hydrologyvideos8253 1 year, sorry this is my first time using this software and don't have any clue about it, so the question look stupid

[@mandipbanjara3622]

What does the warning of muskingum routing is unstable with given parameters for reach R90 mean? I could not find anything in google.

[@hydrologyvideos8253]

If you know the method, the values of K, X and time step (delta T) should meet certain criterion. If that is not met, the routine becomes unstable You can try using a shorter time step.

[@Erwin-wn9zy]

Hi can i ask.. when i make a optimization trial for calibration the button is brown cant be click so i cant run the optimization trial

[@hydrologyvideos8253]

Not sure why. Make sure you have observed data and create a calibration run before you try to run a trial.

[@mahnoorakram319]

excelent