Where have the datasets come from?
The Location SA Map Viewer allows a user to display data collected by State Government agencies over a variety of base maps.
The content of these base maps has been provided by a number of sources internal and external to Government. Some data has been collected by organisations contracted to Government under arrangements that permit its use in solutions like the Location SA Map Viewer.
A base map may be made up of data obtained from a number of diverse sources. The 'Satellite' base map includes aerial imagery acquired by Government and by organisations that make satellite imagery available for use in the public domain under certain conditions.
The Location SA Map Viewer uses imagery made available by Esri's ArcGIS Online World Imagery service. This includes data provided by Esri, DigitalGlobe, Earthstar Geographics, CNES/Airbus DS, GeoEye, USDA FSA, USGS, Getmapping, Aerogrid, IGN, IGP, swisstopo, and the GIS User Community.
How accurate are these datasets?
Some datasets or parts of datasets may be based on approximate locations. Users are advised that the precision and relative spatial location of features cannot be relied upon for navigation, interpretation or spatial analysis. Examples might be the relationship between trees and land boundaries, or a pipeline and a road boundary, or a water drill hole and a property boundary. Every dataset has different levels of spatial accuracy and that may vary across the dataset.
In using and visualising datasets within the map viewer, users must exercise caution and discretion as no data available in the map viewer has a warranty as to its spatial accuracy, completeness or currency.