Dataset Number 902 Dataset Title Topography - Water Bodies Custodian Data Authority: Department for Environment and Water Data Provider: Department for Environment and Water

Description Description The Hydro Water Bodies data set comprises the following hydrographic features: Reservoirs, Dams, Lakes (permanent, intermittent and mainly dry), Land Subject to Inundation and Flooding. It is one of a collection of individual hydrographic data sets that topologically structured and comprise point, line and polygon data types at a general capture scale of 1:50,000. It is used in a variety of applications, particularly in natural resource management, planning and development, and digital map publication. Through the Commonwealth (Bureau of Meteorology) funded Australian Hydrological Geospatial Fabric (Geofabric) project 2011-2012 respective versions of surface water datasets from the former DFW and former DENR were integrated to create a single authoritative database. Water bodies within Adelaide & Mount Lofty Ranges (Fleurieu Peninsula), Kangaroo Island and Northern & Yorke NRM regions were updated to a detailed survey specification. Subsequently, water bodies within the remaining area of A&MLR and the western part of the SA Murray-Darling Basin (Eastern Mount Lofty Ranges) regions were also updated to the detailed survey specification. Data in the pastoral regions of the State has been sourced from the Bureau of Meteorology (BoM) Geofabric Surface Cartography V2.1 AHGFWaterbody dataset (equivalent to Geoscience Australia's GEODATA TOPO 250K). The Geofabric data was integrated in June 2013. Usage Standard layer of topographic dataset. Can be used as a general indication of these features within the agricultural and pastoral areas of South Australia.

Data Quality Lineage Features were originally captured by analog photogrammetric techniques based on 1:80 000 scale aerial photography and surveyed ground control for the standard 1:50 000 mapping program. The photogrammetric plot detail was hand traced onto stable film for map production. The reproduction material was subsequently scanned, the data vectorised and processed through standard procedures to clean,and code the data. The tile based data was processed, edge-matched and converted to GIS format. Subsequently, features have been maintained by heads-up-digitising techniques within geographic regions determined by project requirements. Since the year 2000, update changes generally have not been verified in the field. Through the Commonwealth (Bureau of Meteorology) funded Australian Hydrological Geospatial Fabric (Geofabric) project 2011-2012 respective versions of surface water datasets from the former DFW and former DENR were integrated to create a single authoratative database. Water bodies within Adelaide & Mount Lofty Ranges (Fleurieu Peninsula), Kangaroo Island and Northern & Yorke NRM regions were updated to a detailed survey specification. Subsequently, water bodies within the remaining area of A&MLR and the western part of the SA Murray-Darling Basin (Eastern Mount Lofty Ranges) regions were also updated to the detailed survey specification. Data in the pastoral regions of the State has been sourced from the Bureau of Meteorology (BoM) Geofabric Surface Cartography V2.1 AHGFWaterbody dataset (equivalent to Geoscience Australia's GEODATA TOPO 250K). The Geofabric data was integrated in June 2013. Completeness Dataset is complete over its geographic extentSELECT 1 FROM DUAL; agricultural and pastoral areas (whole of State) Positional Accuracy Features sourced from the BoM Geofabric are generally within +/- 100 metres of their true position. Of the remaining data, 90% of well defined features are within +/- 25metres of their true position. Features captured or revised to the detailed survey specification are within +/- 12metres of their true position.

Geographic Extent Extent Name South Australia Min Easting or Longitude 129 Min Northing or Latitude -38.25 Max Easting or Longitude 141 Max Northing or Latitude -26

Dataset Status Initially Acquired 01-JAN-1990 Last Updated CURRENT Update Frequency Quarterly Maintenance Method Updated on a regional basis by heads-up-digitising from orthophotography and integration of data from other sources. AusGOAL CC BY (Attribution)

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Contact Information Organisation Department for Environment and Water Information Postal Address GPO Box 1047 ADELAIDE SA 5001 Email DEWNR.Mapland@sa.gov.au