2DBCB771212E06B6E040CD9B0F274EFEEnglishData Requests OfficerDepartment of Environment, Parks and Water SecurityGeospatial Services Branch (on behalf of department)datarequests.depws@nt.gov.au2021-11-17AS/NZS ISO 19115 Geographic Information - Metadata, ANZLIC Metadata Profile1.0Land Units of the Woolner Area, Northern Territory.2000-01-142013-09-17ANZNT0903000032This spatial dataset provides polygon information on the map unit boundaries of the Land Units of the Woolner Area, Northern Territory. The survey was undertaken in 1971 covering an area of 192km2. The survey area is located on the coastal plains approximately 60km east of Darwin on the property Woolner, NT Portion 1299.
A technical report was not written at the time to describe this survey and data, however a map and legend was compiled.
Core attributes describing the land units were added to this spatial data set in September 2013.Download the spatial data package (contains spatial data, maps and reports) via https://data.nt.gov.au/
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Supplied by the Department of Environment, Parks and Water Security. Copyright Northern Territory Government.English-12.498599-12.308598131.431209131.6712061971-01-012013-09-17datasetnot knownComplete0not 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 SOURCE DATA
Survey teams navigated during field operations with topographic maps, aerial photographs and prismatic compass's. 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 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. 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 (ARC/MapInfo). Core landform, soil and vegetation attributes attached to map units with additional attributes unique to individual surveys.