InfoSWMM

APPENDIX A – Useful Tables for InfoSWMM and SWMM5

APPENDIX A – Useful Tables for InfoSWMM and SWMM5

A.1 Units of Measurement

Parameter US CUSTOMARY SI/METRIC
Area (Subcatchment) acres Hectares
Area (Storage Unit) square feet square meters
Area (Ponding) square feet square meters
Capillary Suction inches millimeters
Concentration mg/L

ug/L

Count/L

mg/L

ug/L

Count/L

Decay Constant (Infiltration) 1/hours 1/hours
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Arc Map Drawing Area for InfoSWMM

Arc Map Drawing Area

The InfoSWMM and InfoSWMM SA drawing area displays the actual network schematic. You may use a combination of InfoSWMM and ArcMap commands to create, modify, edit and maintain your InfoSWMM and InfoSWMM SA projects. You may bring in Base maps and/or other external drawings into InfoSWMM … Read the rest

Infiltration in InfoSWMM and SWMM5

Infiltration in InfoSWMM and SWMM5

Infiltration is the process of rainfall penetrating the ground surface into the soil over the pervious areas of Subcatchments.

InfoSWMM H2OMap SWMM InfoSWMM SA offers three choices for modeling infiltration:

Horton’s Equation

This method is based on empirical observations showing that infiltration decreases exponentially from … Read the rest

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