Hydrological Theory
User Defined Storms
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From the MIDUSS Version 2
Reference Manual - Chapter 7
(c) Copyright Alan A. Smith Inc. |
The user defined Mass Rainfall Distribution
function is defined in exactly the same way as for the Huff storm but
with the difference that the number of points is not limited to 51 to
define the curve. Since the initial and final points must have values
of 0.00 and 1.00 respectively this means that there can be up to
(Npts-1) equally spaced segments in the definition of the Mass
Rainfall curve.
A number of popular rainfall distributions
are described in *.mrd files which are
included with MIDUSS. These include the various SCS 24-hour and
6-hour storms and regulatory storms such as Hurricane Hazel (Southern
Ontario, Canada) and the
Timmins
storm for more northerly parts of Ontario. These files are simple
text files and can be printed out to show the values used.
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