: This project developed an innovative method based on a conceptual ecohydrological model to advance the understanding of ecosystem functions and in turn assisted in the development of the MDBA Basin Plan. We delivered a ‘higher level’ approach to this project by identifying the key physical (hydrologic and geomorphic) processes relevant to the Basin and then determined where (spatial) and when (temporal) the processes occur. The performance of the processes were modelled hydrologically and represented by hydrologic indicators. Our work in this space directly advanced the Sustainable Diversion Limits for the Murray Darling Basin.