Huff Rainfall Distribution
Huff Rainfall Distribution
(OP)
I need to provide the existing 100-year peak discharge from a 5 acre site. To do this, I usually use the SCS-Type II,24 hr. rainfall distribution in Hydraflow. Using=Cn:80,Tc=15, and 7.58in. rain.....I get a peak discharge of 28.82 cfs.
However, I need to provide the peak rainfall using the Huff rainfall distribution. I can not find any examples of how do do this. Can anyone help me out?
Thanks
However, I need to provide the peak rainfall using the Huff rainfall distribution. I can not find any examples of how do do this. Can anyone help me out?
Thanks





RE: Huff Rainfall Distribution
RE: Huff Rainfall Distribution
RE: Huff Rainfall Distribution
And here are the intensity curves, showing the extent of the difference:
RE: Huff Rainfall Distribution
RE: Huff Rainfall Distribution
Peter Smart
HydroCAD Software
www.hydrocad.net
RE: Huff Rainfall Distribution
RE: Huff Rainfall Distribution
Huff's distribution produces lower peaks and is good for regulating the high frequency events (1, 2, 5, 10 yr) so that small storms don't blow right through detention ponds unrestricted. Peaks for the low frequency events are much higher using SCS.
RE: Huff Rainfall Distribution