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Node Results Data Fields (SWMM)

All results fields are displayed on the results grid and on the Node 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.

Database Table Name: __IWR_Node

Hydraulic results

Time-varying results

Field name

Help text

Units

Attribute

Water depth Depth of water above node inlet elevation Y DEPTH
Hydraulic head Hydraulic head elevation Z HEAD
Volume Stored water volume VO VOLUME
Lateral inflow Lateral inflow including runoff and other external inflows Q LATERAL_INFLOW
Total inflow Total inflow including lateral inflow and upstream flows Q TOTAL_INFLOW
Surface flooding Flow lost from the system Q FLOODING
Pressure Pressure at inlet WIN_P PRESSURE
Inlet elevation Invert elevation at the node Z INVERT_ELEVATION
Head class

Compares node head with link elevations:

Value Description
0 Below Link Invert
1 Below Link Crown
2 Below Maximum Depth, where maximum depth is height of link
3 Surcharged
HEAD_CLASS

Maxima results

Field name

Help text

Units

Attribute

Max Water depth

Maximum water depth value during the simulation

Y DEPTH
Max Hydraulic head Maximum hydraulic head (HGL) elevation during the simulation Z HEAD
Max Total inflow Maximum Total inflow value during the simulation Q TOTAL_INFLOW

Summary results (non time-varying)

Field name

Help text

Units

Attribute

Total flood volume Total volume of flooding during simulation STORAGEVOL TOTAL_FLOOD_VOLUME
Total flood time Duration of simulation over which flooding occurs HOURS TOTAL_FLOOD_TIME
Flow volume difference Difference between inflow and outflow at the node VO FLOW_VOLUME_DIFFERENCE
Total inflow volume

Total volume of flow that entered the node during the simulation

(Applicable to outfall nodes only)

STORAGEVOL TOTAL_INFLOW_VOLUME

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>

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