Metadata : Vegetation Survey of Weddell, Northern Territory

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Metadata Details:

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

Version:1.0

Date Metadata Extracted:2024-03-29

Date Metadata Last Updated:2021-05-10

Current URL (HTML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=AF7886F77609602AE040CD9B2144348A

Current URL (XML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=xml&metadata_id=AF7886F77609602AE040CD9B2144348A


Citation

ANZLIC Identifier:AF7886F77609602AE040CD9B2144348A

Title: Vegetation Survey of Weddell, Northern Territory

Citation Date:2011-06-30

Date Type:creation

Custodian:Department of Environment, Parks and Water Security


Description

Abstract:

This high resolution vegetation survey (scale 1:10,000) and accompanying polygon spatial dataset provides information about the vegetation communities over the Weddell area, Northern Territory. This information is intended to support the development of the proposed Weddell townsite area and surrounds.

In 2020, vegetation communities for the Middle Arm Peninsula, west of Weddell, were appended to the original dataset. This includes new survey work as well as existing mangrove mapping. The survey extent has increased from 179 km2 to 443 km2 in area.

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:2010-11-01

Data Currency End Date:2021-04-21

Access Constraint:Download the spatial data package (contains spatial data and reports) via data.nt.gov.au/

You are licensed to use the 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, Parks and Water Security. Copyright Northern Territory Government


Data Quality

Lineage:Version 1.0 data for the proposed new township of Weddell was compiled in 2011 for NTG use. In July 2020, the data was made available for public access, including the associated technical report (Cuff and Brocklehurst, 2011).
Map unit boundaries were derived from a number of remotely sensed data sources using both statistical analysis and manual interpretation methods, including:
1. Stereoscopic interpretation of high resolution hardcopy aerial photography;
2. On-screen interpretation of contemporary high resolution digital aerial photography;
3. Manual interpretation and statistical analysis of Worldview 2 multi-spectral satellite imagery

Version 2 published 21/04/2021: Additional field survey and mapping was conducted in 2018/19 on the remaining areas of the Middle Arm Peninsula to the west of the original survey boundary. This utilised an approach and classification framework consistent with the original survey with the addition of more recent NTLIS program ortho-imagery to aid the interpretation of vegetation patterns.
Descriptions for additional map units are available in the spatial data package. Notes in Access Constraint in this metadata record.

Positional Accuracy:POLYGON DATA:
Polygon boundaries were manually digitised from a combination of aerial photography interpretation and satellite image analysis on a high resolution (15cm), 2010 digital aerial photograph image base (NTLIS, 2010) of the Weddell area.

Polygon boundaries were manually digitised from a combination of aerial photography interpretation and satellite image analysis on a high resolution (15cm), 2017/18 digital aerial photograph image base (NTLIS, 2017, 2018) for the Middle Arm Peninsula.

Attribute Accuracy:These polygons were attributed using the classification of vegetation communities derived from numerical analysis of >100 full-floristic vegetation survey sites collected from across the Weddell survey area.
Polygon attribution reflects the interpretation and integration of a range of data including detailed site data, field notes, aerial photography, satellite image analysis and digital elevation models. Full details of the vegetation mapping process and the vegetation map unit descriptions can be found in Cuff & Brocklehurst, 2011.

Descriptions for additional map units are available in the spatial data package. Notes in Access Constraint in this metadata record.

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:- Spatial data updates completed for Weddell Area and Middle Arm Peninsula.
- Map product only for Weddell, 2011.


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
01. SURVEY_NMEName of published data set
02. SURVEY_IDUnique identifier for published survey data WEDVG_10 used for department storage purposes.
03. MU_ORIGINOrigin of vegetation map unit derivation. This is a compilation of 3 surveys.IMMRP_8Survey: Mangrove Community Mapping Charles Point to Gunn Point 2016
MA_10Survey: Middle Arm Peninsula Vegetation 2020
WEDVG_10Survey: Weddell Vegetation 2011
04. MAPUNITVegetation mapunit code for polygon (represents a concatenation of both Veg1 and Veg2). For example 12a/14a
05. MU_PCAlias: Mapunit %
Proportion of vegetation map units contained within polygon. For example 60/40
06. MU_COVERAlias: Mapunit cover
Disturbance status of vegetation in polygon
07. MU_HAAlias: Mapunit Area (ha)
Area of polygon in Hectares
08. VEG1Dominant vegetation map unit code
09. VEG2Additional vegetation map unit code (where applicable)
10. VEG1_PCAlias: Veg 1 %
Dominant vegetation map unit proportion
11. VEG2_PCAlias: Veg 2 %
Additional vegetation map unit proportion (where applicable)
12. VEG1_HAArea of vegetation map unit 1 in Hectares
13. VEG2_HAArea of vegetation map unit 2 in Hectares (where applicable)
14. VEG_SYSSystem of community classification used to describe vegetation map units.
NVIS - National Vegetation Information System
15. VEG_FORMAlias: Veg broad formation
Vegetation Structural Formation (following NVIS).
16. ASSEMBLAGEAlias: Veg assemblage
17. SENS_SIGSensitive/Significant Vegetation classes (where applicable) under the Northern Territory Planning Scheme and referenced in the NT Land Clearing Guidelines.
18. WETLANDWetland habitat as defined under the NT Land Clearing Guidelines. Includes riverine wetlands and associated riparian habitats found along waterways.
19. COMM_DESCAlias: Community Description
Short description of vegetation community derived from vegetation map unit descriptions in accompanying report.
20. VERSIONVersion number of spatial dataset
21. VERS_DATEAlias: Version Date

Supplementary Information

Department Survey Reference ID: WEDVG_10
Bibliographic Reference: Cuff, N.C and Brocklehurst, P. S. 2011 Vegetation Mapping and Floristic Survey of the Proposed New Township of Weddell, Northern Territory. Department of Natural Resources, Environment, The Arts and Sport, Palmerston, Technical Report No. 07/2011D
- Download report from Northern Territory Library hdl.handle.net/10070/799581
- Download map Weddell 2011 www.ntlis.nt.gov.au/mpds/get_file?file_id=5262

Mangroves Community Mapping Charles Point to Gunn Point 2016
Metadata record www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=87F656131848A609E050CD9B214417E1

This record maintained using the NTLIS Metadata Tool