DD2E80494858EFD6E040CD9B2144768AEnglishData Requests OfficerDepartment of Lands, Planning and EnvironmentGeospatial Services Unit (on behalf of department)Datarequests.DLPE@nt.gov.au2013-05-30AS/NZS ISO 19115 Geographic Information - Metadata, ANZLIC Metadata Profile1.0 Land Units of the Knox Creek Plain, WA and NT2000-05-042013-05-21This spatial dataset, KNOXC_25, describes the plain between Knox Creek in Western Australia and the Keep River in Northern Territory. The surveyed area covers 120.61 km2 is is located 30km north-east of Kununurra and referred to as the Knox Creek Plain. The purpose of the survey was to provide soil and landscape information for assessment of the suitability of part of the Knox Creek Plain for irrigated agriculture, and to assist planning for possible expansion of the Ord River Irrigation Area. 17 LAND UNITS were identified and their soils, landform and vegetation characteristics were described at a survey scale of 1:25 000. The original land resource survey was undertaken in 1994 as a cooperative project with teams from both Western Australia and the Nothern Territory governments. Additional survey work undertaken in 1998 in the southern part of the survey area. 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-15.6889-15.4896128.9432129.0411994-05-042013-05-23datasetnot knownComplete - available for public use.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: 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: 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. 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. Attribute values, as described in the Data Dictionary below, have been added to each polygon.0Original map unit boundaries delineated from aerial photographs and stereoscope interpretation on 1 :20,000 colour photographs (taken July 1993). 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 (ArcGIS/MapInfo). 2013: Core landform, soil and vegetation attributes attached to map units with additional attributes unique to individual surveys.