Metadata : Land Units Trial Paddocks McArthur River Station
Name:AS/NZS ISO 19115 Geographic Information - Metadata, ANZLIC Metadata Profile
Date Metadata Extracted:2022-12-10
Date Metadata Last Updated:2021-08-06
Current URL (HTML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=864962904A109E75E040CD9B2144745E
Current URL (XML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=xml&metadata_id=864962904A109E75E040CD9B2144745E
Title: Land Units Trial Paddocks McArthur River Station
Custodian:Department of Environment, Parks and Water Security
This high resolution land resource survey dataset describes landform, soil and vegetation. The mapped information describes attributed land unit polygons over an area of 97.3km2 within the Colinta Trial Paddocks of McArthur River Station, NT Por 4319, Northern Territory. The survey data was originally compiled in 1988 and prepared at a scale of 1:50,000.
Core attributes describing the land units, as defined by this department, were added to the spatial dataset in September 2020.
- North Bounding Coordinate:-16.427311
- South Bounding Coordinate:-16.527238
- East Bounding Coordinate:135.896061
- West Bounding Coordinate:135.780717
Character Set: Latin 1
Maintenance and Update Frequency:notPlanned
Data Currency Start Date:2010-05-11
Data Currency End Date:2021-08-06
Access Constraint:Download the spatial data package (contains spatial data, maps and reports) via 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: 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.
Lineage: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 were digitised using geographic information system (ESRI ArcGIS 9.3) from hardcopy map. Limited attribute values describe each polygon, however further details may be available in the published survey report.
Positional Accuracy: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.
Attribute Accuracy:POLYGON 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.
POINT SOURCE DATA
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 describe these sites, then the dominant soil is chosen.
Logical Consistency:GIS 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.
Name Organisation Position Role Phone Fax Data Requests Officer Department of Environment, Parks and Water Security Geospatial Services Branch (on behalf of department) distributor firstname.lastname@example.org
Attribute Attribute Description Possible Code Code Description LAND_UNIT Alias: Land Unit
The LAND_UNIT field is the land unit label from the spatial dataset (ie 9a2).
LFORM_CLASS Alias: Landform Class
Landform class is a system adopted by the department. The categories do not conform to national criteria even though some have been sourced from Australian Soil and Land Survey - Field Handbook (Mc Donald et.al. 1998).
LF_DESC Alias: Landform Description
Landform description includes details about landform, and general notes pertaining to slope, surface gravel and other details describing the land unit.
SOIL Alias: Dominant Soil Order
The dominant soil order described in a land unit is recorded.
SOIL_DESC Alias: Soil Description
Soil description includes an ASC or Northcote/other soil classification and usually includes colour, soil depth and other notes describing the soil.
SOIL_SYS Alias: Soil Classification System
The soil classification system used to describe the soil in the land unit description
SPECIES_1 Alias: Veg Dom Species 1
The dominant vegetation species described in a land unit. The order of species listed determines their dominance.
SPECIES_2 Alias: Veg Dom Species 2
Where 2 dominant vegetation species were described in a land unit. The order of species listed determines their dominance.
SPECIES_3 Alias: Veg Dom Species 3
Where 3 dominant vegetation species described in a land unit. The order of species listed determines their dominance.
SURVEY_ID Alias: Survey Identifier
A department code that usually refers to the first five characters from the original survey site sheet.
SURVEY_NME Alias: Survey Name
The name of the survey area or report to which the mapping refers.
VEG_DESC Alias: Vegetation Description
The dominant species and its structure are recorded. Occasionally it will include minor vegetation communities also noted in the land unit description and/or notes specific to the community.
VEG_STRUC Alias: Dominant Veg Structure
Vegetation structural classes from NVIS (ESCAVI 2003), Walker and Hopkins (1998) and Specht (1970) classification schemes.
VEG_SYS Alias: Veg Classification System
The National Vegetation Information System (NVIS) classification system.
Survey ID Reference Code: MCARR_50
Lynch B (1988), LAND UNITS OF THE COLINTA / O.I.D. TRIAL PADDOCKS MCARTHUR RIVER STATION (1988)
Technical Memorandum SLR-D0696. Conservation Commission of the Northern Territory, Palmerston NT
- Download the report (PDF) via the Northern Territory Library; hdl.handle.net/10070/228540
- Download map products created for this survey; www.ntlis.nt.gov.au/mpds/get_file?file_id=9062
This record maintained using the NTLIS Metadata Tool