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Hydrologic modelling of the relaxation of operational constraints in the southern connected system: methods and results

On 29 June 2012, the Murray–Darling Basin Ministerial Council requested that the MDBA complete a ‘relaxed-constraints’ model scenario with a Basin-wide reduction in diversions of 3200 GL/y. The purpose of this scenario is to explore the flow regime changes and potential environmental benefits that would result if some major existing river operating constraints in the southern connected system were relaxed. This report documents the approach used and outcomes of that work.