Metadata : The Land Resources of Helen Springs Station, Northern Territory.

Index:


Metadata Details:

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

Version:1.0

Date Metadata Extracted:2024-04-20

Date Metadata Last Updated:2016-06-29

Current URL (HTML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=80DDE2994A705536E040CD9B21443855

Current URL (XML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=xml&metadata_id=80DDE2994A705536E040CD9B21443855


Citation

ANZLIC Identifier:80DDE2994A705536E040CD9B21443855

Title:The Land Resources of Helen Springs Station, Northern Territory.

Citation Date:2015-03-02

Date Type:revision

Custodian:Department of Environment, Parks and Water Security


Description

Abstract:

This polygon spatial dataset provides information on the land unit boundaries of Helen Springs Station, Northern Territory and describes dominant landform, soils and vegetation. The original purpose of the survey was to acquire baseline information on the land resources to assist with management of the property. The survey area of 5,385 km2 is located approximately 150 km north of Tennant Creek on the Stuart Highway.

The original field survey was undertaken in 1987-89 at a mapping scale of 1:100,000. Core attributes describing the land units, as defined by this department, were added to the spatial dataset in February 2015.

ANZLIC Search Words:

Spatial Domain:

Bounding Coordinates:


Dataset Status

Dataset ID:

Language:English

Character Set: Latin 1

Progress:completed

Maintenance and Update Frequency:notPlanned

Data Currency Start Date:1987-09-01

Data Currency End Date:2015-03-02

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 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 collected via geographic information system (ARC/MapInfo). Core landform, soil and vegetation attributes attached to map units with additional attributes unique to individual surveys.



Positional Accuracy:POLYGON DATA
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.

POINT SOURCE 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 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 line work. 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

AttributeAttribute DescriptionPossible CodeCode Description
LAND_UNITThe LAND_UNIT field is the land unit label from the spatial dataset (ie.9a2).
LF_CLASSAlias: 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_DESCAlias: Landform Description
Landform description includes details about landform, and general notes pertaining to slope, surface gravel and other details describing the land unit.
SOILAlias: Dominant Soil Order
The dominant soil order described in a land unit is recorded.
SOIL_DESCAlias: 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_ 3Alias: Dominant Veg Species 3
Where 3 dominant vegetation species described in a land unit.The order of species listed determines their dominance.
SPECIES_1Alias: Dominant Veg Species 1
The dominant vegetation species described in a land unit. The order of species listed determines their dominance.
SPECIES_2Alias: Dominant Veg Species 2
Where 2 dominant vegetation species were described in a land unit. The order of species listed determines their dominance.
SURVEY_IDAlias: 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 SURVEY_NME is the full name of the report to which the mapping refers.
VEG_DESCAlias: 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_STRUCAlias: Dominant Veg Structure
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 Code (Land Units): HELE_100

Bibliographic Reference: Grant A.R. (2003); THE LAND RESOURCES OF HELEN SPRINGS STATION; Report No: 20/2003A., Natural Systems Division, Department of Infrastructure, Planning and Environment, Alice Springs, NT.

The technical report is available for download (PDF) via the Northern Territory Library, hdl.handle.net/10070/228944

This record maintained using the NTLIS Metadata Tool