 |
Metadata : Land Units of the Knox Creek Plain, WA and NT |
Index:
Metadata Details:
Name:AS/NZS ISO 19115 Geographic Information - Metadata, ANZLIC Metadata Profile
Version:1.0
Date Metadata Extracted:2024-11-23
Date Metadata Last Updated:2013-05-30
Current URL (HTML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=DD2E80494858EFD6E040CD9B2144768A
Current URL (XML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=xml&metadata_id=DD2E80494858EFD6E040CD9B2144768A
Citation
ANZLIC Identifier:DD2E80494858EFD6E040CD9B2144768A
Title: Land Units of the Knox Creek Plain, WA and NT
Citation Date:2000-05-04
Date Type:creation
Custodian:Department of Environment, Parks and Water Security
Description
This 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.
- biota
- environment
- geoscientificInformation
Bounding Coordinates:
- North Bounding Coordinate:-15.4896
- South Bounding Coordinate:-15.6889
- East Bounding Coordinate:129.041
- West Bounding Coordinate:128.9432
Dataset Status
Dataset ID:
Language:English
Character Set: Latin 1
Progress:completed
Maintenance and Update Frequency:notPlanned
Data Currency Start Date:1994-05-04
Data Currency End Date:2013-05-23
Access Constraint:
Download the spatial data package (contains spatial data, maps and reports) via 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: 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.
Data Quality
Lineage:Original 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.
Positional Accuracy:Polygon 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.
Attribute Accuracy: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. Attribute values, as described in the Data Dictionary below, have been added to each polygon.
Logical Consistency:GIS 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.
Completeness:Complete - available for public use.
Contacts
Name Organisation Position Role Phone Fax Data Requests Officer Department of Environment, Parks and Water Security Geospatial Services Branch (on behalf of department) distributor datarequests.depws@nt.gov.au
Data Dictionary
Attribute Attribute Description Possible Code Code Description DOUBLE_LAB Alias: Land Unit Double Label
This applies ONLY to surveys with land units that have double labels, for example 5a/5c. This
field is used to acknowledge that this land unit contains another component (in this case 5c).LAND_UNIT Alias: Land Unit
The Land Unit label is used to describe each polygon. (ie.9a2)LF_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).LU_DESC Alias: Land Unit Description
The LU_DESC is a general text field from the map legend. The amount of detail may vary between surveys.SOIL Alias: Dominant Soil Order
The dominant soil order described in a land unit.SOIL_SYS Alias: Soil Classification System
The soil classification system used to describe the soil in the land unit descriptionSPECIES_ 3 Alias: Veg Species 3
Where 3 dominant vegetation species described in a land unit.The order of species listed determines their dominanceSPECIES_1 Alias: Veg Species 1
The dominant vegetation species described in a land unit. The order of species listed determines their dominance.SPECIES_2 Alias: Veg Species 2
Where 2 dominant vegetation species were described in a land unit. The order of species listed determines their dominance.SURVEY_ID Alias: Survey Identifier
The first five characters from the corporate survey code.SURVEY_NME Alias: Survey Name
The full name of the report to which the mapping refersVEG_STRUC Alias: Dominant Veg Structure
Vegetation structural classes from NVIS (ESCAVI 2003), Walker and Hopkins (1998) and Specht (1970) classification schemesVEG_SYS Alias: Veg Classification System
The National Vegetation Information System (NVIS) classification system
Supplementary Information
Department Survey ID (Land Units) KNOXC_25
Bibliographic Reference: Schoknecht, N and Grose, C (March 1996); SOILS OF THE KNOX CREEK PLAIN EAST KIMBERLEY, WESTERN AUSTRALIA AND NORTHERN TERRITORY. Resource Management Technical Report 153. Natural Resources Assesment Group Agriculture, WA. (with assistance from Dennis Fett and Stephen Johnston, Conservation Commission of the Northern Territory) ISSN 1039-7205
This report includes a SUPPLEMENTARY REPORT about addtional surveys undertaken in 1998.
The technical report is available for download (PDF) via the Northern Territory Library, hdl.handle.net/10070/228501
NOTE: Land Unit 7b is a component of double label unit 7a/7b but does not exist as a singular land unit. Consequently, the descriptive information for 7b is not available in the spatial data. 7b land unit description is as follows: Drainage system; Landform Desc: Sloping margins of the plains immediately adjacent to the major river and creek banks; Soil Desc: Variable soils often cracking clays which have been eroded and truncated; Vegetation not described.
This record maintained using the NTLIS Metadata Tool