This dataset was derived by the Bioregional Assessment Programme. The parent datasets are identified in the Lineage field in this metadata statment. The processes undertaken to produce this derived dataset are described in the History field in this metadata statement.
This is a cartographic dataset showing the area of the Great Artesian Basin that is outside the Cadna Owie - Hooray aquifer extent.
The polygon shapefile within this dataset was created by erasing the Cadna Owie - Hooray aquifer extent shapefile: CadnaOwie_Hooray_Aquifer_Extent.shp (GABATLAS - Cadna-owie-Hooray Aquifer and Equivalents - Thickness and Extent, GUID: bc55589c-1c6f-47ba-a1ac-f81b0151c630) from the Great Artesian Basin extent shapefile: GAB_Hydrological_Boundary.shp (Great Artesian Basin - Hydrogeology and Extent Boundary, GUID: 020957ea-4877-4009-872c-3cacfb6f8ded).
Using the Erase tool in ArcGIS (Analysis Tools > Overlay > Erase) with the following input parameters:
Bioregional Assessment Programme (2016) Great Artesian Basin - Cadna-owie Hooray Aquifer Erase. Bioregional Assessment Derived Dataset. Viewed 05 July 2017, http://data.bioregionalassessments.gov.au/dataset/b2182f7c-2bc7-4101-8ab8-acecb157d931.