The purpose of the Wetlands GIS of the Murray-Darling Basin project was to map the maximum extent of wetlands within a ten year period (1983-1993) based on the presence of water.
Wetlands greater than 5ha were identified using a combination of an unsupervised classification of spectral classes of Landsat MSS imagery and ancillary wetland information to create information classes of broad wetland groups (Floodplain wetlands, freshwater lakes, saline lakes, and reservoirs). This data layer is the result of an external review of the Murray-Darling Basin Wetlands Verification Series 1.0. by relevant state agencies in NSW, Vic, Qld, SA and ACT.