Summer School Activity Forum

Wrong graphic resulted from HEC-HMS run

Picture of Sorin Ciolofan
Wrong graphic resulted from HEC-HMS run
by Sorin Ciolofan - Tuesday, 28 June 2016, 8:13 PM
 Good day,
I wanted to do again, on my laptop, all the steps given in the exercise that we did in the classroom, the exercise with Siron for HEC-HMS. At page 36 from the document "Guide on hydrological modelling with HEC-HMS ", after running Run1 simulation we are supposed to get the graphic from Figure 39 / page 36, but in the classroom, and now again, on my laptop, we obtained another graphic, a wrong graphic that I reproduce in the image attached below. 

hec wrong graphic

 As can be seen above, this wrong graphic has huge unrealistically values for Flow (cms). I forgot what we have to do in order to get the correct graphic, and in the documentation is not mentioned (i.e following step by step the documentation one gets the above graphic). I tried restarting HEC-HMS but that did not solve the problem. 

Any idea is highly appreciated.

Best regards,

Picture of Lucian Umbrarescu
Re: Wrong graphic resulted from HEC-HMS run
by Lucian Umbrarescu - Wednesday, 29 June 2016, 12:11 PM
You might need to check if you set " Set to default " in Components -> Meteorological Models -> Met1 -> (bottom left screen) Meteorology Model -> Replace missing.

If you already did that you need to delete the actual Simulation Run (named Run1 according to the given documentation) and create a new Simulation Run.

Then it should work properly. Hope this helps.

Picture of Sorin Ciolofan
Re: Wrong graphic resulted from HEC-HMS run
by Sorin Ciolofan - Wednesday, 29 June 2016, 8:34 PM

 Yes, that works, thank you. Unfortunately this step was not included in the documentation so is easy to get the wrong graphic.