Share
 
 

Subcatchment Results Data Fields (SWMM)

All results fields are displayed on the results grid and on the Subcatchment Property Sheet while viewing a replay of a simulation.

Time varying results are shown with the field name in an alternate colour on the grid. Non time varying results have the field name in the normal black type.

Hydraulic results

Time-varying results

Field name

Help text

Units

Attribute

Rainfall Rainfall rate R RAINFALL
Snow depth Snow depth RD SNOW_DEPTH
Evaporation loss Losses due to evaporation I EVAPORATION_LOSS
Infiltration loss Losses due to infiltration I INFILTRATION_LOSS
Runoff Runoff flow Q RUNOFF
Groundwater flow Groundwater flow into the drainage network Q GROUNDWATER_FLOW
Groundwater elevation Elevation of groundwater Z GROUNDWATER_ELEVATION
Impervious runoff Impervious runoff depth RD IMPERV_RUNOFF
Pervious runoff Pervious runoff depth RD PERV_RUNOFF

Summary results (non time-varying)

Field name

Help text

Units

Attribute

Total precipitation Total rainfall that occurs during the simulation RD TOTAL_PRECIPITATION
Total runon

Total run-on from other subcatchments that occurs during the simulation

RD TOTAL_RUNON
Total evaporation Total evaporation that occurs during the simulation RD TOTAL_EVAPORATION
Total infiltration Total infiltration that occurs during the simulation RD TOTAL_INFILTRATION
Total runoff depth Total depth of runoff that occurs during the simulation RD TOTAL_RUNOFF_DEPTH
Total runoff volume Total runoff that occurs during the simulation STORAGEVOL TOTAL_RUNOFF_VOLUME
Peak runoff Maximum runoff value that occurs during simulation Q PEAK_RUNOFF
Peak runoff time Number of minutes after the start of simulation at which peak runoff occurs MIN PEAK_RUNOFF_TIME
Runoff coefficient Total runoff depth divided by the total rainfall over the subcatchment RUNOFF_COEFFICIENT

Water quality results

Time varying results

Field name

Help text

Units

Attribute

<pollutant name>

Pollutant washoff / build up

Note that the reported value will be in the unit specified for the pollutant

mg/l

ug/l

#/l

<pollutant name>

Maxima results

Field name

Help text

Units

Attribute

Max <pollutant name>

Maximum pollutant washoff / build up

Note that the reported value will be in the unit specified for the pollutant

mg/l

ug/l

#/l

<pollutant name>

Was this information helpful?