2DBCB771214B06B6E040CD9B0F274EFEEnglishData Requests OfficerDepartment of Lands, Planning and EnvironmentGeospatial Services Unit (on behalf of department)Datarequests.DLPE@nt.gov.au2021-11-17AS/NZS ISO 19115 Geographic Information - Metadata, ANZLIC Metadata Profile1.0Land Resources of the Upper Mary River Catchment2005-01-012006-10-11ANZNT0903000061This polygon spatial dataset provides information on the land unit boundaries of the Upper Mary River Catchment, Northern Territory and describes dominant landform, soils and vegetation. The survey area of 5643 km2 is located approximately 120 km south east of Darwin and south of the Arnhem Highway. The area includes large sections of the Mary River National Park and the western borders of Kakadu National Park. The original field survey was undertaken in 2000 and 2001 at a mapping scale of 1:50,000. Core attributes describing the land units, as defined by this department, are included in the spatial dataset and described in the Data Dictionary in this record. The spatial data and the accompanying report, Land Resources of the Upper Mary River Catchment - Resource Assessment and Degradation Survey, provide a comprehensive land resource information base on which to plan and achieve sustainable resource management, conservation and development in the catchment. 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 Government.English-13.838594-12.758593131.50121132.6012061998-12-242012-07-31datasetnot knownComplete. 0not knownGIS editing tools were used to rectify all overshoots and undershoots in linework. Arc/Info topological consistency checks were performed to detect flaws in the spatial data structure. The coverage was cleaned, to eliminate any duplicates arcs. The coverage was built for arcs and polygon topologies. A label errors routine was run to detect unlabelled polygons. A node errors routine was run to identify pseudo nodes and dangles. Checks were done to ensure that all classified polygons are closed, nodes are formed at intersections of lines and that each polygon has only one label. 0not knownPositional accuracy is based on digital 1:20,000 aerial photography rectified to 1:100,000 topographic data and Northern Territory cadastral information. Site data locations recorded using a non-differential GPS (2002). 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. 0The map unit boundaries were interpreted by land resource officers in 1998-2002 at scale 1:50,000. Map unit boundaries were derived using aerial photography, satellite imagery, geological and topological data. Field data (site information) described and classified according to national standards. Map unit polygons collected via geographic information system (ARC/MapInfo). The department's core set of descriptive attributes for landform, soil and vegetation were attached to the polygons in October 2006.