SCS Type Storms - Recurrence Intervals
SCS Type Storms - Recurrence Intervals
(OP)
Can a SCS Type 1 storm be used to estimate a 200 year flood peak, or was it only intended for the 100-year flood (and less)?
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SCS Type Storms - Recurrence Intervals
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RE: SCS Type Storms - Recurrence Intervals
RE: SCS Type Storms - Recurrence Intervals
In the end, it's a matter of what your local stormwater regulations allow/require. Although most agencies continue to use the standard SCS/NRCS curves, I expect to see more use of site-specific synthetic rainfall distributions as time goes on.
This trend is fueled by the available of updated PDF data from NOAA, and the development of regional PDF sources such as the Northeast Regional Climate Center.
More info and links at www.hydrocad.net/rainfall/pfd.htm
Peter Smart
HydroCAD Software
www.hydrocad.net
RE: SCS Type Storms - Recurrence Intervals
By the way, it is more likely that a type II or type III storm would be used for a 200-year analysis.