Scaling Rain Data for a Design Storm
Scaling Rain Data for a Design Storm
(OP)
Is there a simplified method to scale rain data to an appropriate design storm?
I have rain data from three-nearby rain gauges, which indicate two large rainfall events, 6- and 12-hours. These occurred around the time when the remnants of Hurricane Ida moved through the area.
At the same time, I have flow data from a sewer collection system and from pump stations. What I would like to do is scale the rain data for comparison to a 24-hour storm, but I am not sure if there is a simplified way to do this, or if it is even possible.
I have rain data from three-nearby rain gauges, which indicate two large rainfall events, 6- and 12-hours. These occurred around the time when the remnants of Hurricane Ida moved through the area.
At the same time, I have flow data from a sewer collection system and from pump stations. What I would like to do is scale the rain data for comparison to a 24-hour storm, but I am not sure if there is a simplified way to do this, or if it is even possible.
RE: Scaling Rain Data for a Design Storm
Why not compare your observed rainfall to a synthetic rainfall distribution of the same duration? For example, if you wanted to compare to a Type II distribution, 6-hour and 12-hour versions available, in addition to the prevailing 24-hour duration.
Peter Smart
HydroCAD Software
www.hydrocad.net