Ecology of the Hardman Basin, 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:2026-06-10

Date Metadata Last Updated:2026-05-05

Current URL (HTML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=2DBCB771212D06B6E040CD9B0F274EFE

Current URL (XML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=xml&metadata_id=2DBCB771212D06B6E040CD9B0F274EFE

Citation

ANZLIC Identifier:2DBCB771212D06B6E040CD9B0F274EFE

Title:Ecology of the Hardman Basin, Northern Territory

Citation Date:2000-01-14

Date Type:publication

Custodian:Department of Lands, Planning and Environment

Description

Abstract:

This polygon spatial dataset provides information delineating land unit boundaries at a scale of 1:50,000 for the Hardman Basin, Northern Territory. Core landform, soil and vegetation attributes attached to the land units are included in the spatial dataset, with additional attributes describing geology, erosion, landscape stability, and land management potential.
The purpose of this survey was to map, describe and evaluate erosion type and severity for the Northern Territory portion of the Hardman Basin to guide land management practices and address erosion and sedimentation in the Ord River Catchment.
Data was collected during the dry season of 1970. Some areas designated as severely eroded at time of survey have since been rehabilitated.

ANZLIC Search Words:

biota

environment

farming

geoscientificInformation

Spatial Domain:

Bounding Coordinates:

North Bounding Coordinate:-17.013317

South Bounding Coordinate:-17.531279

East Bounding Coordinate:129.335056

West Bounding Coordinate:129.001255

Dataset Status

Dataset ID:ANZNT0903000031

Language:English

Character Set: Latin 1

Progress:onGoing

Maintenance and Update Frequency:asNeeded

Data Currency Start Date:1979-01-01

Data Currency End Date:2006-06-28

Access Constraint:Standard access notes
Download the spatial data package (contains spatial data, maps and reports) via data.nt.gov.au/
You are licensed to use this publication 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 this publication.
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 Lands, Planning and Environment. 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.

Map unit polygons collected via geographic information system (ARC/MapInfo).

Modernised core attributes attached in 2010, reupdated in 2026. Additional attributes (CSIRO Land System, Geology, Erosion, Stability, Potential) attached in 2026, remaining as described at time of original capture (1970).

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 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.

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 linework. Using ArcInfo topographical consistency checks were performed to detect flaws in the spatial data structure. The coverage was cleaned, to eliminate any duplicates arcs. The coverage was built for arcs and polygon topologies. A label errors routine was run to detect unlabelled polygons. A node errors routine was run to identify pseudo nodes and dangles. Checks were done to unsure that all classified polygons are closed, nodes are formed at intersections of lines and that each polygon has only one label.

Completeness:In progress

Contacts

Name Organisation Position Role Phone Fax Email

Data Requests Officer Department of Lands, Planning and Environment Geospatial Services Unit (on behalf of department) distributor Datarequests.DLPE@nt.gov.au

Name	Organisation	Position	Role	Phone	Fax	Email
Data Requests Officer	Department of Lands, Planning and Environment	Geospatial Services Unit (on behalf of department)	distributor			Datarequests.DLPE@nt.gov.au

Data Dictionary

Attribute Attribute Description Possible Code Code Description

AREA_HA Alias: Area (ha)
Total area in hectares for each polygon.

CSIRO_LAND_SYS Alias: CSIRO Land System
CSIRO Land System associated with a land unit. Complies with department standards at time of survey.

DOUBLE_LAB Alias: Double Labels
Acknowledges that this land unit contains components of another land unit. The subunit is listed second.

EROSION Alias: Erosion
Describes the type and severity of erosion present in a land unit.

GEOLOGY Alias: Geology
Describes the surficial geology of a land unit, based on Traves (1955).

LAND_UNIT Alias: Land Unit
The land unit label from the spatial dataset.

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).

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.

POTENTIAL Alias: Potential
Recommendations for land management and suitability for pastoral use.

SOIL Alias: Dominant Soil Order
The dominant soil order described in a land unit.

SOIL_DESC Alias: Soil Description
Soil description includes an Australian 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.
soil_ASC Soil descriptions updated to the Australian Soil Classification (Third Edition); original descriptions based on Stewart (1970).

SPECIES_1 Alias: Vegetation Species 1
The dominant plant species that occurs in the most common or dominant vegetation community described in a land unit. The order of species listed determines their dominance.

SPECIES_2 Alias: Vegetation Species 2
The second dominant (or co-dominant) plant species that occurs in the most common or dominant vegetation community described in a land unit. The order of species listed determines their dominance.

SPECIES_3 Alias: Vegetation Species 3
The third dominant plant species (or an associated species) that occurs in the most common or dominant vegetation community described in a land unit. The order of species listed determines their dominance.

STABILITY Alias: Stability
Describes the stability of a land unit

SURVEY_ID Alias: Survey Identifier
The first five characters from the corporate survey code.
ORC1

SURVEY_NME Alias: Survey Name
The name of the survey area to which the mapping refers.
Ecology of the Hardman Basin, NT

VEG_DESC Alias: Vegetation Description
The most common vegetation community is described and includes the structure and dominant species. Occasionally it will include minor vegetation communities also noted in the land unit description and/or notes specific to the community.

VEG_STRUC Alias: Vegetation Structure
The dominant vegetation structure in a land unit.

VEG_SYS Alias: Vegetation Classification System
The vegetation classification system used to describe the vegetation structure in a land unit description.
UNKNOWN Original classification system is unknown; attribute table modernised using Specht (1970).

Attribute	Attribute Description	Possible Code	Code Description
AREA_HA	Alias: Area (ha) Total area in hectares for each polygon.
CSIRO_LAND_SYS	Alias: CSIRO Land System CSIRO Land System associated with a land unit. Complies with department standards at time of survey.
DOUBLE_LAB	Alias: Double Labels Acknowledges that this land unit contains components of another land unit. The subunit is listed second.
EROSION	Alias: Erosion Describes the type and severity of erosion present in a land unit.
GEOLOGY	Alias: Geology Describes the surficial geology of a land unit, based on Traves (1955).
LAND_UNIT	Alias: Land Unit The land unit label from the spatial dataset.
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).
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.
POTENTIAL	Alias: Potential Recommendations for land management and suitability for pastoral use.
SOIL	Alias: Dominant Soil Order The dominant soil order described in a land unit.
SOIL_DESC	Alias: Soil Description Soil description includes an Australian 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.	soil_ASC	Soil descriptions updated to the Australian Soil Classification (Third Edition); original descriptions based on Stewart (1970).
SPECIES_1	Alias: Vegetation Species 1 The dominant plant species that occurs in the most common or dominant vegetation community described in a land unit. The order of species listed determines their dominance.
SPECIES_2	Alias: Vegetation Species 2 The second dominant (or co-dominant) plant species that occurs in the most common or dominant vegetation community described in a land unit. The order of species listed determines their dominance.
SPECIES_3	Alias: Vegetation Species 3 The third dominant plant species (or an associated species) that occurs in the most common or dominant vegetation community described in a land unit. The order of species listed determines their dominance.
STABILITY	Alias: Stability Describes the stability of a land unit
SURVEY_ID	Alias: Survey Identifier The first five characters from the corporate survey code.	ORC1
SURVEY_NME	Alias: Survey Name The name of the survey area to which the mapping refers.	Ecology of the Hardman Basin, NT
VEG_DESC	Alias: Vegetation Description The most common vegetation community is described and includes the structure and dominant species. Occasionally it will include minor vegetation communities also noted in the land unit description and/or notes specific to the community.
VEG_STRUC	Alias: Vegetation Structure The dominant vegetation structure in a land unit.
VEG_SYS	Alias: Vegetation Classification System The vegetation classification system used to describe the vegetation structure in a land unit description.	UNKNOWN	Original classification system is unknown; attribute table modernised using Specht (1970).

Supplementary Information

Department Survey Code: ORC1_50
SALInfo Code: HARDM

This spatial dataset should not be used at scales greater than 1:50,000

BIBLIOGRAPHIC REFERENCE:

Robinson, C. S. (1971)
Ecology of the Hardman Basin, N.T.
Technical Bulletin No. 6, Industry and Agriculture Branch, N.T. Administration, Darwin.

Download the report (PDF) via the Northern Territory Library: hdl.handle.net/10070/227865

This record maintained using the NTLIS Metadata Tool

Metadata : Ecology of the Hardman Basin, Northern Territory