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Old 05-20-2008, 03:42 PM
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D.A. Size Limitations
Is there a minimum drainage area size when using HEC-HMS below which peak flow determinations are unreliable? I am looking at a d.a. that is 0.6 sqare miles with precip up to the PMF.
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Bob Wucher
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Old 06-02-2008, 06:35 PM
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I think the reliability depends on the method you're using to compute the rainfall excess and runoff routing. Please refer to the HEC-HMS Technical Reference Manual and related literature to see more about the background of each one of the methods you're intending to use.

Rodrigo F. de Macedo.
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