Sunday, July 28, 2013
SWMM5 Runoff and Depth Relationships
Note: The surface runoff is a non linear function of the independent depth in both the pervious and impervious areas of the subcatchments. No surface runoff occurs until the depth over either the impervious or pervious area is greater than the respective depression storage (Figure's 1, 2, 3 and 4).
Figure 1: Surface Runoff, Depth and Depression Storage Relationship.
Figure 2: Subcatchment Runoff and Depth over time with a Subcatchment Width of 500 feet.
Figure 3: Subcatchment Runoff and Depth in a Scatter Graph with a Subcatchment Width of 500 feet.
Figure 4: Subcatchment Runoff and Depth in a Scatter Graph with a Subcatchment Width of 2000 feet.
InfoSWMM Version Numbers and the version of Arc Map they use and which EPA SWMM5 Engine is used for Each InfoSWMM Version
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Comment: A really nice water analogy for the field properties Divergence, Curl and Gradient from the Blog Starts With a Bang ....it&...