Tracer ABCD (Water Overlay)

Attribute	Unit	Description	Default
SUBSTANCE_A	x/m²	The amount of substance A created per second per m² in this location.	0
SUBSTANCE_B	x/m²	The amount of substance B created per second per m² in this location.	0
SUBSTANCE_C	x/m²	The amount of substance C created per second per m² in this location.	0
SUBSTANCE_D	x/m²	The amount of substance d created per second per m² in this location.	0

Chemical emitters's attributes do not take the form of function values, and must be added manually or as part of loading in geodata.

Chemical emitters/decomposers

Chemical emitters are constructions which produce specific chemicals. The net amount of chemicals a single construction 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.

Chemicals have generic definitions, in terms of name and magnitude, to allow for the modeling of arbitrary substances.

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 cannot move between cells.