Land Units Keep Plains, Northern Territory

Index:

Metadata
Citation
Description

Dataset Status
Data Quality
Contact Information
Data Dictionary
Supplementary Information

Metadata Details:

Name:AS/NZS ISO 19115 Geographic Information - Metadata, ANZLIC Metadata Profile

Version:1.0

Date Metadata Extracted:2024-04-17

Date Metadata Last Updated:2020-06-17

Current URL (HTML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=2DBCB771213106B6E040CD9B0F274EFE

Current URL (XML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=xml&metadata_id=2DBCB771213106B6E040CD9B0F274EFE

Citation

ANZLIC Identifier:2DBCB771213106B6E040CD9B0F274EFE

Title:Land Units Keep Plains, Northern Territory

Citation Date:2018-11-07

Date Type:revision

Custodian:Department of Environment, Parks and Water Security

Description

Abstract:

Department Survey Code (Land Units): KPLAIN_25

This spatial dataset describes the Keep Plains area in the western part of the Northern Territory immediately adjacent to the Western Australia border. The surveyed area of 253km2 is located approximately 350km south west of the Katherine township over the Spirit Hills Pastoral lease; and 50km north east of the Kununurra township. Department survey code KPLAIN_25.

The original land unit mapping survey undertaken in 1971 covered both the Lower Weaber Plains in Western Australian and also the Keep Plains in the Northern Territory. The spatial dataset covers the Northern Territory part of the survey. Approximately 300 soil-landscape and vegetation descriptions form the basis for describing the land units at a survey scale of 1:25 000. The associated technical report also describes the potential for irrigation in the area.

The line-work for this spatial dataset was re-digitised in November 2018 (see Lineage) and a new map product was created (see Supplementary Information).

ANZLIC Search Words:

environment

geoscientificInformation

imageryBaseMapsEarthCover

Spatial Domain:

Bounding Coordinates:

North Bounding Coordinate:-15.229

South Bounding Coordinate:-15.505

East Bounding Coordinate:129.206

West Bounding Coordinate:129

Dataset Status

Dataset ID:ANZNT0903000035

Language:English

Character Set: Latin 1

Progress:completed

Maintenance and Update Frequency:notPlanned

Data Currency Start Date:1971-07-01

Data Currency End Date:2018-11-07

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. 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.

CORE ATTRIBUTES ADDED IN 2013: The department's set of core landform, soil and vegetation attributes attached to map units.

SPATIAL LINE-WORK UPDATED NOVEMBER 2018: Line-work was re-digitised using the following methods;
- Scanning of the original historic aerial photographs that contained all of the original lines drawn by Aldrick (pencil) and the site locations (pin prick).
- Georeferenced the scanned photographs in ArcMap against photo-patterns of 2012 30cm pixel imagery, with several control points of reference until it was suitably georeferenced and the photographs also somewhat aligned with each other.
- Created new Map Unit lines in ArcMap by tracing the original (pencil) linework.
- Adjusted the boundary slightly in ArcMap i.e. removed unmapped areas and realigned the eastern boundary with the 2012 imagery of Sandy Creek (it appeared that slight migration of creek had occurred over the last 40 years). The original published map does not have a hard boundary in some areas so there was some 'scientific licence' required.
- Updated the site point location georeferences in a shapefile and updated the department's soil information details.

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.

Department core attributes added in 2013: The department's set of core landform, soil and vegetation attributes attached to map units.

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.

Contacts

Name Organisation Position Role Phone Fax Email

Data Requests Officer Department of Environment, Parks and Water Security Geospatial Services Branch (on behalf of department) distributor datarequests.depws@nt.gov.au

Name	Organisation	Position	Role	Phone	Fax	Email
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

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 description

SPECIES_ 3 Alias: Veg Species 3
Where 3 dominant vegetation species described in a land unit.The order of species listed determines their dominance

SPECIES_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 refers

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.

Attribute	Attribute Description	Possible Code	Code Description
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 description
SPECIES_ 3	Alias: Veg Species 3 Where 3 dominant vegetation species described in a land unit.The order of species listed determines their dominance
SPECIES_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 refers
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.

Supplementary Information

Department Survey ID (Land Units) KPLAIN_25
Bibliographic Reference: Aldrick, J.M. and Moody, P.W. (1977), REPORT ON THE SOILS OF THE LOWER WEABER & KEEP PLAINS, NT. Animal Industry and Agriculture Branch. Department of the Northern Territory, Darwin, N.T. (published Comm Aust 1977, ISBN 0 642 03292 0)

The technical report is available for download (PDF) via the Northern Territory Library, hdl.handle.net/10070/228193
The department's map product (PDF) for this survey may be downloaded, www.ntlis.nt.gov.au/mpds/get_file?file_id=5722

Soil and land resource information was reinterpreted over the Keep Plains area in 2019.

- Soil and Land Capability Assessment of the Lower Weaber and Keep River Plains, Northern Territory. Section 1: Lower Weaber and Upper Keep.
Metadata www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=5CCCFBD9176A2D21E050CD9B2144301F
Download report - hdl.handle.net/10070/306077

- Soil and Land Capability Assessment of the Lower Weaber and Keep River Plains, Northern Territory. Section 2: Lower Keep.
Metadata www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=937E1A8816E307ADE0530101007F4BC4
Download report - hdl.handle.net/10070/797534

This record maintained using the NTLIS Metadata Tool

Metadata : Land Units Keep Plains, Northern Territory