Description and rationale
The Agricultural Runoff rainfall-runoff model allows the user to implement the functionality of the Irrigator Demand Model as a rainfall-runoff model at the Functional Unit level. It is used to represent cropping areas in sub-catchments which are rain-fed and are not part of a command area which receives water from a dam (regulated irrigation). The model contains one water balance parameter and three routing parameters.
Scale
SMARG is a catchment scale model and operates at a daily time step.
Principal developer
The version of SMARG implemented in Source comes from the CRC for Catchment Hydrology Rainfall-Runoff Library (RRL), where it is referred to as SMAR.
Scientific Provenance
SMARG is the soil moisture and accounting model (SMAR) (O’Connell et al., 1970; Kachroo, 1992) with modification to route surface runoff and the groundwater contribution to the stream separately (Kachroo and Liang, 1992). This modified model is also often referred to in the literature as SMAR rather than SMARG (e.g. Podger, 2004; Tuteja and Cunnane, 1999; Vaze et al., 2004).
Version
Source v2.10
Rainfall Runoff Library v1.0.5, June 25, 2004
http://www.toolkit.net.au/Tools/RRL
Dependencies
None.
Availability
Automatically provided with Source. SMARG is also available through the Rainfall Runoff Library (RRL) through http://www.toolkit.net.au/Tools/RRL.
Theory
Return flows are added to the sub-catchment outflow, not directly to the river. Also available is the option to add flow routing to return flows, to represent the function of routing parameters in standard rainfall-runoff models.
The Agricultural Runoff rainfall-runoff model allows the user to implement the functionality of the Irrigator Demand Model as a rainfall-runoff model at the Functional Unit level. It is used to represent cropping areas in sub-catchments which are rain-fed and not part of a command area which receives water from a dam (regulated irrigation). Return flows are added to the sub-catchment outflow, not directly to the river. Also available is the option to add flow routing to return flows, to represent the function of routing parameters in standard rainfall-runoff models.
...