SWMM5 Conversion - Subcatchments (SWMM)
Information from the following sections of the SWMM5 file are imported to InfoWorks ICM SWMM networks objects on the Subcatchments grid:
- [SUBCATCHMENTS]
- [POLYGONS]
- [SUBAREAS]
- [INFILTRATION]
- [LID_USAGE]
- [GROUNDWATER]
- [LOADINGS]
- [COVERAGES]
- [GWF]
- [LID_CONTROLS]
- [LANDUSES]
- [WASHOFF]
- [BUILDUP]
- [POLLUTANT]
- [SNOWPACK]
- [AQUIFIER]
- [Innovyze_Supplementary_Infiltration]
[SUBCATCHMENTS]
The [SUBCATCHMENTS] section is imported into a SWMM Subcatchment network object in InfoWorks ICM.
|
SWMM5 Field |
InfoWorks ICM Data Field |
Notes |
|---|---|---|
|
Name |
Subcatchment ID |
|
|
Rgage |
Raingage ID |
|
|
OutID |
Outlet |
The name of the node or the subcatchment that receives runoff from the subcatchment. |
| Drains to |
If the OutID is a node, the Drains to field in ICM is set to sw_node. If the OutID is a subcatchment, the Drains to field in ICM is set to sw_subcatchment. |
|
|
Area |
Area |
|
|
%Imperv |
Imperviousness |
|
|
Width |
Width |
|
|
Slope |
Slope |
|
|
Clength |
Curb length |
Total Curb Length |
|
Spack |
Snow pack ID |
The snow pack object is imported from the [SNOWPACKS] section. |
[POLYGONS]
The [POLYGONS] section is imported into a SWMM network Subcatchment object in InfoWorks ICM.
|
SWMM5 Field |
InfoWorks ICM Subcatchment Data Field |
Notes |
|---|---|---|
| X | Geometry of the subcatchment boundary is determined from the X and Y coordinate data in the [POLYGONS] section | |
| Y |
[SUBAREAS]
The [SUBAREAS] section is imported to a SWMM network Subcatchment object in InfoWorks ICM.
|
SWMM5 Field |
InfoWorks ICM Subcatchment Data Field |
Notes |
|---|---|---|
| Subcat | ~ | Used to determine which Subcatchment the SWMM5 [SUBAREA] applies to. |
| %Zero | Percent no storage | |
| %Routed | Percent routed | |
| Nimp | Impervious roughness | |
| Nperv | Pervious roughness | |
| RouteTo | Routing | |
| Simp | Impervious storage depth | |
| Sperv | Pervious storage depth |
[INFILTRATION]
The Subcat field in the [INFILTRATION] section is used to determine which subcatchment the infiltration data is applied to.
If the [INFILTRATION] section contains any entries that have their last parameter set to a specific infiltration model, then this determines which subcatchment fields the infiltration data is imported to in ICM. If there is no entry for the last parameter, then the infiltration model set in the SWMM5 [OPTIONS] section will determine which fields the data is imported to.
Horton/Modified Horton Infiltration
|
SWMM5 Field |
InfoWorks ICM Data Field |
Notes |
|---|---|---|
|
MaxRate |
Initial infiltration |
|
|
MinRate |
Limiting infiltration |
|
|
Decay |
Decay factor |
|
|
DryTime |
Drying time | |
|
MaxInf |
Maximum infiltration volume |
Green-Ampt /Modified Green-Ampt Infiltration
|
SWMM5 Field |
InfoWorks ICM Subcatchment Data Field |
Notes |
|---|---|---|
|
Suction |
Average capillary suction |
|
|
Ksat |
Saturated hydraulic conductivity | |
|
IMD |
Initial moisture deficit |
Curve Number Infiltration
|
SWMM5 Field |
InfoWorks ICM Subcatchment Data Field |
Notes |
|---|---|---|
| CurveNo | Curve number | |
| Ksat | Saturated hydraulic conductivity | Although imported, it is not used in InfoWorks ICM as deprecated in SWMM5. |
| DryTime | Drying time |
[LID_USAGE]
The [LID_USAGE] section is imported into the SUDS/LIDs control fields in a SWMM Subcatchment network object in InfoWorks ICM.
|
SWMM5 Field |
InfoWorks ICM Subcatchment Data Field |
Notes |
|---|---|---|
| Subcat | ~ | Used to identify the subcatchment to which the LID_USAGE section is imported. |
| LID Structure ID | Generated on import. | |
| LID | LIDS Control ID | |
| Number | Number of units | |
| Area | Area | |
| Width | Unit surface width | |
| InitSat | Initial saturation | |
| FromImp | Impervious area treated | |
| FromPerv | Pervious area treated | |
| ToPerv | Outflow to | |
| DrainTo | Drain to subcatchment | |
| DrainTo | Drain to node |
[GROUNDWATER]
The [GROUNDWATER] section is imported into a SWMM Subcatchment network object in InfoWorks ICM.
|
SWMM5 Field |
InfoWorks ICM Subcatchment Data Field |
Notes |
|---|---|---|
| Subcat | ~ | Used to identify the subcatchment to which the GROUNDWATER section is imported. |
| Ebot | Aquifer elevation | |
| Aquifer | Aquifer ID | |
| Egw | Aquifer initial ground water elevation | |
| Umc | Aquifer initial ground water moisture content | |
| Node | Aquifer node ID | |
| Esurf | Elevation | |
| A1 | Groundwater coefficient | |
| B1 | Groundwater exponent | |
| Egwt | Groundwater threshold | |
| A2 | Surface coefficient | |
| Dsw | Surface depth | |
| B2 | Surface exponent | |
| A3 | Surface groundwater coefficient |
[LOADINGS]
The [LOADINGS] section is imported into a SWMM network Subcatchment object in InfoWorks ICM.
|
SWMM5 Parameter |
InfoWorks ICM Subcatchment Data Field |
Notes |
|---|---|---|
| Subcat | ~ | Used to identify the subcatchment to which the LOADINGS section is imported. |
| Pollut | Initial buildup | The SWMM5 Pollut and InitBuildup values are imported to the Pollutant and Initial buildup columns of the subcatchment's Initial Buildup grid. |
| InitBuildup |
[COVERAGES]
The [COVERAGES] section is imported into a SWMM network Subcatchment object in InfoWorks ICM. Multiple LandUse/Percent values found on a single line in [COVERAGES] section will be imported. They will also be imported if they are on multiple lines, provided that the subcatchment name (Subcat) precedes the LandUse/Percent values on the subsequent lines.
|
SWMM5 Field |
InfoWorks ICM Subcatchment Data Field |
Notes |
|---|---|---|
| Subcat | ~ | Used to identify the subcatchment to which the COVERAGES section is imported. |
| Landuse | Land uses |
The SWMM5 Landuse and Percent values are imported to the Land use and Area % columns of the subcatchment's Land Uses grid. |
| Percent |
[GWF]
The [GWF] section is imported into a SWMM network Subcatchment object in InfoWorks ICM.
|
SWMM5 Field |
InfoWorks ICM Subcatchment Data Field |
Notes |
|---|---|---|
| Subcat | ~ | Used to identify the subcatchment to which the GWF section is imported. |
| LATERAL Expr | Lateral groundwater flow equation | Imported equations can be viewed in the Groundwater Flow Equation Editor which is accessed from the relevant groundwater flow equation data field in the applicable subcatchment's properties. |
| DEEP Expr | Deep groundwater flow equation |
[LID_CONTROLS]
The [LID_CONTROLS] section is imported as a SWMM network LIDS Control object in InfoWorks ICM.
|
SWMM5 Field |
InfoWorks ICM LIDS Control Data Field |
Notes |
|---|---|---|
| Name | Control ID | |
| Type | Control type | |
| SURFACE StorHt | Berm height | |
| SURFACE VegFrac | Vegetation volume fraction | |
| SURFACE Rough | Surface roughness (Manning’s n) | |
| SURFACE Slope | Surface slope | |
| SURFACE Xslope | Swale side slope | |
| PAVEMENT Thick | Pavement thickness | |
| PAVEMENT Vratio | Pavement void ratio | |
| PAVEMENT FracImp | Impervious surface fraction | |
| PAVEMENT Perm | Permeability | |
| PAVEMENT Vclog | Pavement clogging factor | |
| PAVEMENT regenDays | Regeneration interval | |
| PAVEMENT regenDegree | Regeneration fraction | |
| SOIL Thick | Soil thickness | |
| SOIL Por | Soil porosity | |
| SOIL FC | Field capacity | |
| SOIL WP | Wilting point | |
| SOIL Ksat | Conductivity | |
| SOIL Kcoeff | Conductivity slope | |
| SOIL Suct | Suction head | |
| STORAGE Height |
Storage thickness Barrel height |
|
| STORAGE Vratio | Storage void ratio | |
| STORAGE Seepage | Seepage rate | |
| STORAGE Vclog | Storage clogging factor | |
| DRAIN Coeff |
Coefficient for flow in flow units |
|
| Flow capacity | ||
| DRAIN Expon | Flow exponent | |
| DRAIN Offset | Offset height | |
| DRAIN Delay | Delay | |
| DRAINMAT Thick | Mat thickness | |
| DRAINMAT VFrac | Mat void fraction | |
| DRAINMAT | Mat roughness (Manning’s n) | |
| DRAIN OpenDepth | Underdrain open depth | |
| DRAIN CloseDepth | Underdrain close depth | |
| DRAIN ControlCurve | Underdrain control curve | See the Underdrain Curve for further information. |
| REMOVALS | Underdrain pollutant removal |
SWMM5 Pollid is imported to the Pollutant column in the ICM Underdrain pollutant removal grid, and the SWMM5 % Removal is imported to the Removal % column. |
[LANDUSES]
The SWMM5 [LANDUSES] section is imported to a SWMM Land Use network object in InfoWorks ICM.
|
SWMM5 Field |
InfoWorks ICM Land Use Data Field |
Notes |
|---|---|---|
| Name | Land use ID | |
| SweepInterval | Sweep interval | |
| Availability | Sweep availability | |
| LastSweep | Last swept |
[WASHOFF]
The [WASHOFF] section is imported to a SWMM Land Use network object in InfoWorks ICM.
|
SWMM5 Field |
InfoWorks ICM Land Use Data Field |
Washoff Grid |
||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pollutant | Washoff |
Values from the SWMM5 [BUILDUP] section are imported to the ICM Washoff grid as shown below:
|
||||||||||||||||||
| FuncType | ||||||||||||||||||||
| C1 | ||||||||||||||||||||
| C1 | ||||||||||||||||||||
| C1 | ||||||||||||||||||||
| C2 | ||||||||||||||||||||
| SweepRmvl | ||||||||||||||||||||
| BmpRmvl |
[BUILDUP]
The [BUILDUP] section is imported into a SWMM Land Use object in InfoWorks ICM.
|
SWMM5 Field |
InfoWorks ICM Land Use Data Field |
Build-up Grid |
||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pollutant | Build-up |
Values from the SWMM5 [BUILDUP] section are imported to the ICM Build-up grid as shown below:
|
||||||||||||||||||
| FuncType | ||||||||||||||||||||
| C1 | ||||||||||||||||||||
| C2 | ||||||||||||||||||||
| C2 | ||||||||||||||||||||
| C3 | ||||||||||||||||||||
| C3 | ||||||||||||||||||||
| PerUnit |
[POLLUTANTS]
The SWMM5 [POLLUTANTS] section is imported into a SWMM Pollutant network object in InfoWorks ICM.
|
SWMM5 Field |
InfoWorks ICM Pollutants Data Field |
Notes |
|---|---|---|
| Name | Name | |
| Units | Units | |
| Crain | Rainfall concentration | |
| Cgw | Groundwater concentration | |
| Cii | I&I concentration | |
| Kd | Decay coefficient | |
| Sflag | Snow only | |
| CoPoll | Co-pollutant | |
| CoFract | Co-fraction | |
| Cdwf | DWF concentration | |
| Cinit | Initial concentration |
[SNOWPACKS]
The [SNOWPACKS] section is imported to a SWMM Snow Pack network object in InfoWorks ICM.
|
SWMM5 Field |
InfoWorks ICM Pollutant Data Field |
Notes |
|---|---|---|
| PLOWABLE SNN0 | Fraction of impervious area ploughable | |
| Name | Snow pack ID | |
| IMPERVIOUS SD100 | Impervious depth at 100% cover | |
| IMPERVIOUS Tbase | Impervious base temperature | |
| IMPERVIOUS FWF | Impervious fraction free water capacity | |
| IMPERVIOUS FW0 | Impervious initial free water | |
| IMPERVIOUS Cmax | Impervious max. melt coefficient | |
| IMPERVIOUS Cmin | Impervious min. melt coefficient | |
| IMPERVIOUS SD0 | Impervious initial snow depth | |
| REMOVAL Fout | Fraction transferred out of the catchment | |
| PERVIOUS SD100 | Pervious depth at 100% cover | |
| PERVIOUS Tbase | Pervious base temperature | |
| PERVIOUS FWF | Pervious fraction free water capacity | |
| PERVIOUS FW0 | Pervious initial free water | |
| PERVIOUS Cmax | Pervious max. melt coefficient | |
| PERVIOUS Cmin | Pervious min. melt coefficient | |
| PERVIOUS SD0 | Pervious initial snow depth | |
| PLOWABLE Tbase | Plowable base temperature | |
| REMOVAL Dplow | Depth at which snow removal begins | |
| PLOWABLE FWF | Plowable fraction free water capacity | |
| PLOWABLE FW0 | Plowable initial free water | |
| PLOWABLE Cmax | Plowable max. melt coefficient | |
| PLOWABLE Cmin | Plowable min. melt coefficient | |
| PLOWABLE SD0 | Plowable initial snow depth | |
| PLOWABLE Scatch | Subcatchment ID | |
| PLOWABLE Fimelt | Fraction converted into immediate melt | |
| PLOWABLE Fimp | Fraction transferred to the impervious area | |
| PLOWABLE Fperv | Fraction transferred to the pervious area | |
| PLOWABLE Fsub | Fraction moved to another subcatchment |
[AQUIFERS]
The [AQUIFERS] section is imported into a SWMM Aquifier network object in InfoWorks ICM.
|
SWMM5 Field |
InfoWorks ICM Pollutants Data Field |
Notes |
|---|---|---|
| Name | Aquifer ID | |
| Por | Soil porosity | |
| WP | Soil wilting point | |
| FC | Soil field capacity | |
| Ks | Conductivity | |
| Kslp | Conductivity slope | |
| Tslp | Tension slope | |
| Etu | Evapotranspiration fraction | |
| Ets | Evapotranspiration depth | |
| Seep | Seepage rate | |
| Ebot | Elevation | |
| Egw | Initial groundwater | |
| Umc | Initial moisture content | |
| Epat | Time pattern ID |
[Innovyze_Supplementary_Infiltration]
The infiltration information from the [Innovyze_Supplementary_Infiltration] section is imported into a SWMM Subcatchment network object in InfoWorks ICM.
|
SWMM5 Field |
InfoWorks ICM Data Field/Grid |
Note |
|---|---|---|
| InfiltrationType | Infiltration model | |
|
MaxInfilRate |
Initial infiltration |
Imported for Horton and Modified Horton types of infiltration |
|
MinInfilRate |
Limiting infiltration |
Imported for Horton and Modified Horton types of infiltration |
|
DecayConstant |
Decay factor |
Imported for Horton and Modified Horton types of infiltration |
|
DryingTime |
Drying time | Imported for Horton, Modified Horton and Curve number types of infiltration |
|
Max_Volume |
Maximum infiltration volume | Imported for Horton and Modified Horton types of infiltration |
|
SuctionHead |
Average capillary suction |
Imported for Green Ampt and Modified Green Ampt types of infiltration |
|
Conductivity |
Saturated hydraulic conductivity |
Imported for Green Ampt and Modified Green Ampt types of infiltration Although imported, it is not used in InfoWorks ICM as deprecated in SWMM5. |
|
InitialDeficit |
Initial moisture deficit | Imported for Green Ampt and Modified Green Ampt types of infiltration |
| MaxInfilRateCurve | Curve number | Imported for Curve number type of infiltration |
Importing SWMM5 Network Data to SWMM Networks