AFF531BAEA896DE9E0530101007F5EECEnglishData Requests OfficerDepartment of Lands, Planning and EnvironmentGeospatial Services Unit (on behalf of department)Datarequests.DLPE@nt.gov.au2021-09-01AS/NZS ISO 19115 Geographic Information - Metadata, ANZLIC Metadata Profile1.0 Land Units of the Douglas Hot Springs Park, 19802021-09-01This polygon spatial dataset provides information on the land unit boundaries of Douglas Hot Springs Nature Reserve, Northern Territory, and describes dominant landform, soils and vegetation. The survey area of 31 km2 is located approximately 160 km south of Darwin. The original field survey was undertaken in 1980 at a mapping scale of 1:10,000. Core attributes describing the land units, as defined by this department, were added to the spatial dataset in September 2021. The official name of the park is: Tjuwaliyn (Douglas) Hot Springs Park. Download the spatial data package (contains spatial data, maps and reports) via https://data.nt.gov.au/ You are licensed to use the 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, Parks and Water Security. Copyright Northern Territory GovernmentEnglish-13.7867493079999-13.7430666289999131.411494387131.4710639741980-12-012020-09-23datasetnot knownComplete0not knownGIS editing tools were used to rectify all overshoots and undershoots in linework. Using ESRI ArcInfo, topological consistency checks were performed to detect flaws in the spatial data structure. The coverage was cleaned to eliminate any duplicate arcs and built for arcs and polygon topologies. A label errors routine was run to detect unlabelled polygons and also to locate any identical neighbouring mapunit labels. A node errors routine was run to identify any pseudo nodes and dangles. The checks ensure that all polygons are closed, nodes are formed at intersections of lines and that each polygon has only one label.0not knownPOLYGON DATA (pre 1985) Hardcopy maps rectified using control points marked on original hardcopy maps. 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. POINT DATA (pre 1990) Survey teams navigated during field operations with topographic maps, aerial photographs and prismatic compass. Point source locations marked on aerial photography in the field. Positional accuracy considered within 300m but generally below 200m depending on the terrain. Site coordinates derived by transferring site locations from aerial photographs to topographic maps and coordinates calculated. In some cases sites have been georeferenced directly from aerial photography to Google Earth Web Map Server in MapInfo or ArcGIS. 0not knownThe attribute information conforms to the 'Australian Soil and Land Survey Field Handbook' at time of capture. Attributes 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. The department has assigned a list of core attribute values, described in the Data Dictionary below, to each polygon. The attribute naming format uses 10 characters with no spaces to be suitable for an ESRI shape-file format. An alias attribute name is applied to an ESRI file geo-database format.0Original map unit boundaries delineated from aerial photographs and stereoscope interpretation. Map units transferred to clean dyeline sheets or topographic maps 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). Core landform, soil and vegetation attributes attached to map units with additional attributes unique to individual surveys.