In SWMM5 when you run the groundwater analysis, there are two parameters that are required for simulating aquifers. These are the slopes of 1)tension vs. soil moisture curve and 2) hydraulic conductivity vs soil moisture curve. I believe these were referred to in SWMM4 as HCO and PCO. SWMM4...
There are standard curves of soil tension versus moisture content for different soil types (E.g. sand, sandy loan, clay loam, clay, etc.). Also there are similar standard curves of soil conductivity versus moisture content for different soil types.
I am running SWMM5 and two parameters I need...
Got this reply from Mr. Lewis Rossman of EPA:
The curb length for a specific land use within a subcatchment is the subcatchment's total curb length multiplied by the fraction of total area devoted to the land use. In your example, the curb lengths would be 20 and 30 for the developed and...
For example, I have a subcatchment with with 3 land use categories: Developed(20%), Semi-developed (30%) and Undeveloped (50%). I set the normalizer as curb length for developed and semi-developed; and as area for Undeveloped. Since I have to specify the curb length for the entire subcatchment...
