2DBCB771209D06B6E040CD9B0F274EFEEnglishData Requests OfficerDepartment of Lands, Planning and EnvironmentGeospatial Services Unit (on behalf of department)Datarequests.DLPE@nt.gov.au2014-11-06AS/NZS ISO 19115 Geographic Information - Metadata, ANZLIC Metadata Profile1.0Land Units of Upper Todd River Catchment (Bond Springs Station)2000-01-142014-10-02ANZNT0006001011A high resolution survey (1:15,000 scale dataset) describing the geomorphology of a central Australian low relief catchment and to identify processes of landscape change. The mapped information has classified the geomorphic units of the catchment including the description of specific landforms and the establishment of relationships between units. The survey area of approximately 85km2 is located 20km north of Alice Springs on Bond Springs Station. The original field survey was undertaken in 1993-1994 at a mapping scale of 1:15,000. Core attributes describing the land units, as defined by this department, were added to the spatial dataset in September 2014. These attributes include descriptions for dominant landform, soils and vegetation. Download the spatial data package (contains spatial data, maps and reports) via https://data.nt.gov.au/ You are licensed to use the DENR geospatial products on the terms and conditions set out in: Creative Commons Attribution 4.0 International Public License (CC BY 4.0) at: https://creativecommons.org/licenses/by/4.0/legalcode If you do not agree to the terms and conditions you must not use the geospatial products. You are free to copy, communicate and adapt the licensed material, provided that you abide by the licence terms (including Attribution) and attribute the licensed material using the statement: Supplied by the Department of Environment and Natural Resources. Copyright Northern Territory Government.English-23.538571-23.448569133.871265134.0312641994-12-012014-10-02datasetnot knownJudged complete at this stage - spatial and attribute verification of the dataset has been performed.0not knownGIS editing tools were used to rectify all overshoots and undershoots in line work. Polygon topology rules applied are; must not overlap, must not have gaps and each polygon has only one label.0not knownPOLYGON DATA: Map unit boundaries transferred from aerial photographs to topographic maps, using the best available topographic mapping at the time (generally 1:100 000) via a mapograph. Level of accuracy depends on the number of control points on individual aerial photographs. Control points include creek lines, cadastre and other topographic features. Depending on the nature of the landscape (the number of control points), positional accuracy may vary. Positional accuracy generally considered moderate to high. POINT DATA: Site point coordinates collected from a geographic positioning system with general accuracy of within 100m. Selective availability during this time prevented increased accuracy. 0not knownAttributes assigned according to the dominant feature. For example, where ten sites have been grouped to describe a particular map unit and two different soils described from these sites then the dominant soil is chosen. Polygon spatial dataset contains a mapunit attribute only. Additional data description is available in the Technical report - see Other Comments below.0Aerial photography - 1:15,000 Colour 1980 Alice Springs Original map unit boundaries delineated from aerial photographs and stereoscope interpretation. Map units transferred to topographic map sheets via a mapograph. Original maps were hardcopy only. With the advent of geographic information systems polygons were digitised by rectifying the original hard copy maps. Map unit boundaries derived using hard copy aerial photography and stereoscope, satellite imagery (post 1993), geological and topographic maps. Field data (site data) described and classified according to national standards at the time of capture. Map unit polygons collected via geographic information system (ESRI ArcGIS).