Pre 2014 Blogs

SCS Rainfall Distributions and Design Storms

Posted by Robert Dickinson on September 20, 2008 at 10:48am

SSCS Rainfall Distributions for H20MAP and InfoSWMM

The base file has a 24 hyetograph for SCS Type 1A and SCS Type 2 distrubutions. The total of the rainfall is 1 inch and to make a 25 year or 50 year storm you follow these steps:

1. Clone the rainfall time series and

2. Use the Field Calculator in DB Edit to change the total rainfall by using the operand in the Field Calculator dialog. For example, the picture shown below will make a 10 inch 24 hour rainfall in the new time series.

You will end up with two series: (1) the base 1 inch hyetograph and (2) the new design storm of 10 inches.

scs-rainfall-distributions-and-design-storms

E-mail me when people leave their comments –

Follow

You need to be a member of SWMM 5 or SWMM or EPASWMM and SWMM5 in ICM_SWMM to add comments!

Join SWMM 5 or SWMM or EPASWMM and SWMM5 in ICM_SWMM

#xg { position:relative;top:120px; } #xn_bar { top:120px; }

Hello, you need to enable JavaScript to use SWMM 5 or SWMM or EPASWMM and SWMM5 in ICM_SWMM.

Please check your browser settings or contact your system administrator.

Comments