Vegetation and Land Unit Survey of Gregory National Park, 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:2024-04-26

Date Metadata Last Updated:2017-03-28

Current URL (HTML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=2DBCB7711FA106B6E040CD9B0F274EFE

Current URL (XML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=xml&metadata_id=2DBCB7711FA106B6E040CD9B0F274EFE

Citation

ANZLIC Identifier:2DBCB7711FA106B6E040CD9B0F274EFE

Title:Vegetation and Land Unit Survey of Gregory National Park, Northern Territory

Citation Date:2000-01-14

Date Type:publication

Custodian:Department of Environment, Parks and Water Security

Description

Abstract:

This polygon spatial dataset provides information on the land unit boundaries of Gregory National Park, Northern Territory and describes the dominant landform, soils and vegetation. The survey area of 11,100 km2 is located approximately 200 km south-west of the Katherine township via the Victoria Highway.
The original field survey was undertaken in 1991 (completed in 1996) 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 March 2017.

ANZLIC Search Words:

biota

environment

geoscientificInformation

imageryBaseMapsEarthCover

Spatial Domain:

Bounding Coordinates:

North Bounding Coordinate:-15.338591

South Bounding Coordinate:-16.9086

East Bounding Coordinate:131.471234

West Bounding Coordinate:129.701237

Dataset Status

Dataset ID:ANZNT0001000009

Language:English

Character Set: Latin 1

Progress:completed

Maintenance and Update Frequency:notPlanned

Data Currency Start Date:1996-01-01

Data Currency End Date:2017-03-28

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 aerial photography and digital satellite imagery, geological and topographic data. Field data (site information) 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
Site point coordinates collected from a geographic positioning system with general accuracy of within 100m. Selective availability during this time prevented increased accuracy.

Attribute Accuracy:The attribute information conforms to the 'Australian Soil and Land Survey Field Handbook' at time of capture.
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 department has assigned a list of core attribute values, described in the Data Dictionary below, 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: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 field is the land unit label from the spatial dataset (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).

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.

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

SOIL_DESC Alias: 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_1 Alias: Veg Dom Species 1
The dominant vegetation species described in a land unit. The order of species listed determines their dominance.

SPECIES_2 Alias: Veg Dom Species 2
Where 2 dominant vegetation species were described in a land unit. The order of species listed determines their dominance.

SPECIES_3 Alias: Veg Dom Species 3
Where 3 dominant vegetation species described in a land unit. The order of species listed determines their dominance

SURVEY_ID Alias: 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 name of the survey area or report to which the mapping refers

VEG_DESC Alias: 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_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 field is the land unit label from the spatial dataset (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).
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.
SOIL	Alias: Dominant Soil Order The dominant soil order described in a land unit is recorded.
SOIL_DESC	Alias: 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_1	Alias: Veg Dom Species 1 The dominant vegetation species described in a land unit. The order of species listed determines their dominance.
SPECIES_2	Alias: Veg Dom Species 2 Where 2 dominant vegetation species were described in a land unit. The order of species listed determines their dominance.
SPECIES_3	Alias: Veg Dom Species 3 Where 3 dominant vegetation species described in a land unit. The order of species listed determines their dominance
SURVEY_ID	Alias: 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 name of the survey area or report to which the mapping refers
VEG_DESC	Alias: 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_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 Code (Land Units): GREGN_100

Bibliographic Reference:
Brocklehurst, P. Rampant, P. Van Kerckhof, D. and Edmeades, B. (1996)
VEGETATION AND LAND UNIT SURVEY OF GREGORY NATIONAL PARK, NORTHERN TERRITORY (1996).
Report Number LC 04/79. Resource Capability Assessment Branch, Department of Lands, Planning & Environment. NT.

This Technical Report is available for download (pdf) via the Northern Territory Library: www.territorystories.nt.gov.au/handle/10070/229353

This record maintained using the NTLIS Metadata Tool

Metadata : Vegetation and Land Unit Survey of Gregory National Park, Northern Territory