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Returned water is surplus drainage water from irrigation or from rainfall runoff. This water can be redirected into the on farm storage or otherwise can be returned to the river via a confluence node. This is optional in the demand model configuration and can be added by right clicking the Irrigator (menu item) and selecting Return Efficiency. It is expressed as a percentage
Target Modifier
Irrigation modifiers are included into Source to allow a simple mechanism to reduce irrigation intensity for recurring periods of time.
Climate Configuration
There are four parameters that can be defined for climatic data
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This is used to define parameters specifically related to the crop to be planted. Add a new crop by right clicking Irrigator and selecting Add Crop Type. The Source Scientific Reference Guide should be consulted for greater detail regarding parameters for the following sections.
Feature Editor - Irrigator (General Crop Configuration and Soil Configuration)
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Feature Editor - Irrigator (Planting Decision Trigger)
Soil Depletion
The amount of water in the rootzone is defined in terms of rootzone depletion. Rootzone depletion describes the soil water deficit of the rootzone, relative to field capacity. The target depletion is a user specified input and can be specified as either a pattern or as an expression.
Two target depletions can be specified
1) A Regulated Target. This is the target at which Irrigators water and attempts to maintain soil depletion.
2) An Opportunistic Target. This target is used to generate opportunistic requests.
Economics
Need more information on how Economics works. Seem to only have 2 used parameters in SRG and no explanation
Feature Editor - Irrigator (Crop Economics)
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