input hydrographs in HEC-HMS

[hnhrookie]

Hi Folks. I'm new to the forum and would really appreciate any advice.

I was wondering if there is a way to input known hydrographs into HEC-HMS?

For example: I have two ponds in series along the same stream, Pond X and Pond Y (X being upstream of Y). I have design plans on X which tabulate the outflow hydrograph. Is there anyway to plug this outflow hydrograph into HEC-HMS, and use it as the inflow hydrograph to Pond Y. In addition to the outflow from Pond X, there is additional area draining to Y, however I can input the basin data for these areas.

 

[Drew08]

Use a source element, the cup icon with a single down arrow. Select "Discharge Gage" as the flow method. Use the Time-Series Data Manager to create a new discharge gage. For the gage, specify "manual entry", the appropriate units and time interval, and copy-paste the hydrograph into the gage table. Then, for the source element, select the appropriate gage under the "inflow" tab.

 

[hnhrookie]

drew, that hint was invaluable. thanks!