Murray–Darling Basin

                                                                                                   

14.2 Surface water flow out of region

                             

Supporting information   


The volumetric value for streamflow out of MDB (flow to the sea) during 2009–10 is 0 ML.

Continuing the pattern of recent years, there were no outflows from the Murray–Darling Basin (MDB) through the barrages to the sea.

Quantification approach   


Data source

Provided by South Australia’s Department of Water to Murray–Darling Basin Authority (MDBA) and stored as water audit monitoring data in the MDBA HYDRO database.

Data provider

MDBA.

Method

Flows through the barrages are estimated through a water balance method.

Uncertainty

The uncertainty is ungraded.

Approximations, assumptions, caveats/limitations

  • A key assumption underpinning the volume for 2009–10 is that when the level in the Lower Lakes is below sea level, then no flows through the barrages are possible.