Metadata : Lands of the Ord River Catchment, Northern Territory

Index:


Metadata Details:

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

Version:1.0

Date Metadata Extracted:2023-02-02

Date Metadata Last Updated:2011-12-06

Current URL (HTML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=2DBCB77120E506B6E040CD9B0F274EFE

Current URL (XML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=xml&metadata_id=2DBCB77120E506B6E040CD9B0F274EFE


Citation

ANZLIC Identifier:2DBCB77120E506B6E040CD9B0F274EFE

Title:Lands of the Ord River Catchment, Northern Territory

Citation Date:2000-01-14

Date Type:publication

Custodian:Department of Environment, Parks and Water Security


Description

Abstract:

This spatial dataset describes the polygon information on the map unit boundaries of the Ord River Catchment (on the Northern Territory side). The land resource survey was conducted during 1974 at a scale of 1:100000 and covers an area of approximately 11,000km2. The purpose of this survey was was to map and describe the land resources in the catchment areas upstream of the Ord River irrigation scheme and to delineate those areas susceptible to erosion.

ANZLIC Search Words:

Spatial Domain:

Bounding Coordinates:


Dataset Status

Dataset ID:ANZNT0782000058

Language:English

Character Set: Latin 1

Progress:completed

Maintenance and Update Frequency:notPlanned

Data Currency Start Date:1974-01-01

Data Currency End Date:1978-06-30

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 linework derived stereographically using aerial photography to delineate map unit (land system) boundaries and site selection, then extensively ground-truthed with topographic basemap coordinated field survey and site data collection. Verified linework transferred photogrammatically to 1:100,000 film/base to produce final map. Resultant linework scanned/digitised into GIS system as ArcInfo vector information then built as a polygon coverage.
Map unit boundaries derived using hard copy aerial photography and stereoscope, geological and topographic maps. Field data (site data) described and classified according to national standards at the time of capture.

Source data
Aerial photography - 1:81,000 RC9-B&W
Base map - Australian Topographic Survey Series 1:250,000 AGD66
- Lands/Survey Branch NT 1:100,000 film/base from 1:250,000 ATSS AGD66
- Australian Geological Survey Series 1:250,000 AGD66
- Northern Territory Cadastre AGD66

Recompiled and updated to GDA94 as part of ongoing GIS Program 2004; further refined in 2011.

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. In some cases sites have been georeferenced directly from aerial photography via Geographic Information System software.

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.
The attributes for each polygon in this spatial dataset are minimal. Further detail about each mapunit / land system is described in the associated report.

Logical Consistency:GIS editing tools were used to rectify all overshoots and undershoots in line work, nodes are formed at the intersection of lines, polygon topology rules applied are; must not overlap, must not have gaps and each polygon has only one label.

Completeness:Complete


Contacts

NameOrganisationPositionRolePhoneFaxEmail
Data Requests OfficerDepartment of Environment, Parks and Water SecurityGeospatial Services Branch (on behalf of department)distributordatarequests.depws@nt.gov.au

Data Dictionary

No data dictionary defined for this dataset

Supplementary Information

NRETAS Survey ID: ORDRI_100
Report (pdf) can be viewed/downloaded from NT Library hdl.handle.net/10070/228986
Bibliographic Reference: Aldrick, J. Howe, D. and Dunlop, C. (1978) REPORT ON THE LANDS OF THE ORD RIVER CATCHMENT, NT. Land Conservation Section, Animal Industry and Agriculture Branch, Northern Territory Administration, DARWIN, NT. TB 78/24. 74 Tech Bulliten No. 24.

NOTE: A large area within this survey was already mapped; Refer to the report: Ecology of the Hardman Basin, NT. (NRETAS Land Unit Survey ID ORC1_50) Report (pdf) can be viewed/downloaded from NT Library hdl.handle.net/10070/227865

This record maintained using the NTLIS Metadata Tool