Time span settings for multiple 25yr storm durations???
Time span settings for multiple 25yr storm durations???
(OP)
I am running multiple duration storms to determine the critical 25 yr event for pre/post analysis. I can set the time span in "calc settings" and run the model for each storm and all is well, but after I run through all storm events (1hr, 2hr, 4hr, 8hr, 24hr...setting applicable time spans for each independently), the printed the report for all selected storm scenarios reflects only the last time span value entered (24hrs). Obviously, this is now incorrect for all other durations (from 1-8hrs).
How do I "lock" in a specific time span value each storm scenario and be sure it "remembers" this value for each separate storm event? (i.e., set time span = 8hrs for the FDOT 25yr, 8hr event...and then set time span = 4 hrs for the FDOT 25yr, 4 hr event, etc.) As of now, I have execute/print each event separately...which eliminates use of the multiple event print option.
I hope this makes sense. Thanks in advance for any suggestions on how to remedy this issue.
How do I "lock" in a specific time span value each storm scenario and be sure it "remembers" this value for each separate storm event? (i.e., set time span = 8hrs for the FDOT 25yr, 8hr event...and then set time span = 4 hrs for the FDOT 25yr, 4 hr event, etc.) As of now, I have execute/print each event separately...which eliminates use of the multiple event print option.
I hope this makes sense. Thanks in advance for any suggestions on how to remedy this issue.





RE: Time span settings for multiple 25yr storm durations???
So if I put in a time span of 0.01 - 96 hours, that is going to be the time span for all storm events within the file.
If I wanted to run your scenario, I would create individual files for each scenario you want to run.
RE: Time span settings for multiple 25yr storm durations???
Peter Smart
HydroCAD Software
www.hydrocad.net
RE: Time span settings for multiple 25yr storm durations???
Thanks again, Twinkie and psmart for the replies.
RE: Time span settings for multiple 25yr storm durations???
Although it might seem like a good idea to include the time span in the event definitions, this would raise other issues, such as the inability to change the time span for multiple events with a single setting. Using different time spans (and time steps) could also make the event comparison invalid. It's better to use common calculation settings for all events - even if the shorter events "look odd".
Peter Smart
HydroCAD Software
www.hydrocad.net
RE: Time span settings for multiple 25yr storm durations???
Hydrology, Drainage Analysis, Flood Studies, and Complex Stormwater Litigation for Atlanta and the South East - http://www.campbellcivil.com