Tracer ABCD (Water Overlay)

Icon	Attribute	Unit	Range	Description
	TRACER_A	x/m²/s		The amount of tracer A created per second per m² in this location.
	TRACER_B	x/m²/s		The amount of tracer B created per second per m² in this location.
	TRACER_C	x/m²/s		The amount of tracer C created per second per m² in this location.
	TRACER_D	x/m²/s		The amount of tracer D created per second per m² in this location.

Buildings with a positive TRACER Attribute are known as chemical emitters. Buildings with a negatice TRACER Attribute are known as chemical decomposers.

Chemical emitters are Buildings which produce specific chemicals. The net amount of chemicals a single Building creates is spread out across it's surface. After the chemicals are created, any water flowing through the same location will carry a part of the chemicals with it.

Structures which are defined to create a negative amount of chemicals function as a scrubber or decomposer, removing the specified quantity of chemicals from the hydrological model.

In situations where water is absent, chemicals will not be moved between cells.

Notes

• Chemical emitters must be Buildings on the surface, not underground Buildings.
• Chemical emitters's attributes do not take the form of function values, and thus must be added manually or as part of loading in geodata.
• Chemicals have generic definitions, in terms of name and magnitude, to allow for the modeling of arbitrary tracers.

How-to's

• How to add and remove an Attribute

See also

• Surface flow formula (Water Overlay)
• Underground flow formula (Water Overlay)
• Surface infiltration formula (Water Overlay)
• Underground infiltration formula (Water Overlay)
• Surface model (Water Overlay)
• Underground model (Water Overlay)
• Infiltration model (Water Overlay)
• Tracer flow model (Water Overlay)

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Building height • Critical infrastructure • Ground infiltration md • Root depth m • Sewered • Solid • Water evaporation factor • Water manning • Water microrelief m • Tracer A • Tracer B • Tracer C • Tracer D

Related

Hydrological features • Hydraulic structures •  Terrain attributes • Model attributes • Results • Simulation data