Topography - Water Bodies

Dataset Number902
Dataset TitleTopography - Water Bodies
CustodianData Authority: Department for Environment and Water
Data Provider: Department for Environment and Water

Description

DescriptionThe 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.
UsageStandard 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

LineageFeatures 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.
CompletenessDataset is complete over its geographic extentSELECT 1 FROM DUAL; agricultural and pastoral areas (whole of State)
Positional AccuracyFeatures 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 NameSouth Australia
Min Easting or Longitude129
Min Northing or Latitude-38.25
Max Easting or Longitude141
Max Northing or Latitude-26

Dataset Status

Initially Acquired01-JAN-1990
Last UpdatedCURRENT
Update FrequencyQuarterly
Maintenance MethodUpdated on a regional basis by heads-up-digitising from orthophotography and integration of data from other sources.
LicenseingCC BY (Attribution)

Attributes

TableNameField AliasData TypeDescription
TOPO.WaterBodiesFEATURECODE Long IntegerAS2482 based geographic feature code
TOPO.WaterBodiesHYDROID Long IntegerFeature identifier, unique across all geodatabases within an AHGF release
TOPO.WaterBodiesAHGFFEATURETYPE Long IntegerFeature type within the AHGF Data Model
TOPO.WaterBodiesNAME textName associated with individual feature. If obtained from SA Gazetteer GAZRECNO is also populated
TOPO.WaterBodiesPERENNIALITY textPERENNIAL - inundated year round INTERMITTENT - inundated seasonally MAINLY DRY - periodic inundation, not seasonal
TOPO.WaterBodiesAHGFPERENNIALITY textCode indicating the permanence of the associated water feature
TOPO.WaterBodiesNETWORKNODEID Long IntegerHydroID of node in AHGFNetworkNode that is closest to outlet of waterbody
TOPO.WaterBodiesMAPPEDNODEID Long IntegerHydroID of node in AHGFMapNode that is closest to outlet of waterbody
TOPO.WaterBodiesWATERSTOREUSE textPrimary use of water storage (eg. Flood Irrigation). Only for Reservoirs
TOPO.WaterBodiesSOURCEFEATURECLASSNAME textFeature Class Name from the input data source
TOPO.WaterBodiesSOURCEFEATURETYPE short integerFeature type from the input data source
TOPO.WaterBodiesSOURCEID Long IntegerUnique identifier for individual feature in the input data source
TOPO.WaterBodiesFEATURERELIABILITY DateReliability date of spatial object (Currency of reference source)
TOPO.WaterBodiesFEATURESOURCEAGENCY textName of agency that originally captured the spatial object
TOPO.WaterBodiesATTRIBUTERELIABILTY DateReliability date of attribute object (Currency of reference source)
TOPO.WaterBodiesPLANIMETRICACCURACY short integerStandard deviation of the horizontal positional accuracy in metres
TOPO.WaterBodiesSYMBOL short integerSymbol number for feature used in Geoscience Australia¿s GEODATA product
TOPO.WaterBodiesATTRIBUTESOURCEAGENCY textName of agency that originally captured the attribute object
TOPO.WaterBodiesTEXTNOTE textText note to accompany the feature
TOPO.WaterBodiesALBERSAREA DoubleArea (m2) calculated from Albers Equal Area Conic projection
TOPO.WaterBodiesVOLUME DoubleVolume in mega litres calculated using formula referred to in Calculation field
TOPO.WaterBodiesCALCULATION textName of scientific equation used to calculate the Volume
TOPO.WaterBodiesSOURCEIMAGE short integerName of source imagery used to capture, change or verify a feature
TOPO.WaterBodiesGAZRECNO textSA Gazetteer record number (link) for feature name
TOPO.WaterBodiesCAPTURESOURCE Long IntegerMetadata: Source mapping program
TOPO.WaterBodiesCAPTUREMETHOD short integerMetadata: method of data capture (eg Trace ¿ Ortho Image)
TOPO.WaterBodiesFEATURESOURCE short integerMetadata: information source used to identify feature
TOPO.WaterBodiesAUS_WETNR textUnique identifier for labelling of all South Australian wetlands. Concatenation of Region and Wetland ID
TOPO.WaterBodiesWET_CODE textWET_CODE
TOPO.WaterBodiesEDITDATE DateDate on which the spatial and/ or attribute object(s) of a feature were last edited

Contact Information

OrganisationDepartment for Environment and Water
Information
Postal AddressGPO Box 1047

ADELAIDE
SA 5001
EmailDEWNR.Mapland@sa.gov.au