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Mangroves of the Northern Territory, 1:100,000

This spatial polygon dataset is derived from the 2001 mapping of mud crab (Scylla serrata) habitats along the NT and Queensland coastal wetlands. The polygons were derived from Landsat imagery and verified with field work and is suitable for use at scale 1:100,000.


The information can be used in many ways to assist the management of these habitats. It provides a suitable baseline dataset for monitoring broad scale changes in area and composition of coastal wetland communities. Additionally, it provides information required by managers for choosing representative habitats for protection.

Simple

Identification info

Date (Creation)
2002-08-02
Date (Publication)
2017-04-27
Date (Revision)
2022-09-01

Distributor

Department of Environment, Parks and Water Security, Northern Territory Government - Data Requests Officer (Geospatial Services Branch (on behalf of department))
Credit
Data supplied by Department of Environment and Natural Resources. © Copyright Northern Territory of Australia
Status
Completed

Point of contact

Department of Environment, Parks and Water Security, Northern Territory Government - Data Requests Officer (Geospatial Services Branch (on behalf of department))
Spatial representation type
Vector

Spatial resolution

Equivalent scale

Denominator
100000
Topic category
  • Biota
  • Geoscientific information

Extent

N
S
E
W


Temporal extent

Time period
1996-06-30 1996-12-30
Maintenance and update frequency
Not planned

Resource format

Title
ESRI Shapefile
Date
Edition
-
Global Change Master Directory (GCMD) Earth Science Keywords Version 8.0
  • EARTH SCIENCE | BIOSPHERE | AQUATIC ECOSYSTEMS | MARINE HABITAT
Australian and New Zealand Standard Research Classification (ANZSRC): Fields of Research
  • Environmental Sciences not elsewhere classified
  • Environmental Management
  • Marine and Estuarine Ecology (incl. Marine Ichthyology)
AODN Platform Vocabulary
  • research aeroplane
AODN Discovery Parameter Vocabulary
  • Biotic taxonomic identification
Keywords (Theme)
  • Benthic habitat

Resource specific usage

Specific usage
Data supplied for use by the Seamap Australia Project.

- ()

Resource constraints

Classification
Unclassified

Resource constraints

Linkage
http://i.creativecommons.org/l/by/4.0/88x31.png

License Graphic

Title
Creative Commons Attribution 4.0 International License


>

Website
http://creativecommons.org/licenses/by/4.0/

License Text

Other constraints
Cite data as: Department of Environment and Natural Resources, Northern Territory Government of Australia (2012). Mangroves of the Northern Territory, 1:100,000. Data accessed at http://metadata.imas.utas.edu.au/geonetwork/srv/en/metadata.show?uuid=39fbb324-b184-4ac5-8d3e-9a2994bbecb9 on (access date).
Other constraints
This dataset is hosted by the Institute for Marine and Antarctic Studies (IMAS), University of Tasmania, on behalf of the NT Government for the purposes of the Seamap Australia collaborative project (testing a national marine benthic habitat classification scheme).
Language
English
Character encoding
UTF8
Supplemental Information
de Vries, C., Danaher, K. and Dunning, M.C. (2002) Methods for monitoring the abundance and habitat of northern Australian mud crab, Scylla serrata. Milestone report. Objective 1: Habitat mapping. Report to the NT DBIRD and FRDC. Department of Primary Industries, Brisbane. Hay, T., Gribble, N., de Vries, C., Danaher, K., Dunning, M., Hearnden, M., Caley, P., Wright, C., Brown, I., Bailey, S. and Phelan, M. Methods for Monitoring the Abundance and Habitat of the Northern Australian Mud Crab Scylla serrata. Final Report FRDC Project 2000/142. ISBN 0 7245 4721 5, download link: http://www.nt.gov.au/d/Content/File/p/Fish_Rep/FR80.pdf

Content Information

Content type
Physical measurement
Description
Taxonomic identification of mangrove species and vegetation types

Identifier

Code
Biotic taxonomic identification
Name
CLASS

Description
Appended to original data for styling purposes for the Seamap Australia Project.
Name
Benthic habitat

Name
SM_HAB_CLS

Distribution Information

Distribution format
  • ESRI Shapefile

OnLine resource
SHAPE-ZIP

DATA ACCESS - This OGC WFS service returns the data (NT mangroves) in Shapefile format

OnLine resource
seamap:SeamapAus_NT_mangroves_100

MAP - NT Mangroves

OnLine resource
Original metadata record [NT Government catalogue]

Data quality info

Hierarchy level
Dataset

Report

Name of measure
Positional Accuracy
Measure description
The resolution of the satellite imagery and the mapping process used results in a mapping product at a scale of 1: 100 000 with a high degree of accuracy (90%).

Report

Name of measure
Attribute Accuracy
Measure description
A reliability class was assigned to each polygon within the classification based on the amount of ground truth data available (i.e. aerial photography and field data). Refer to Data Dictionary in this record.

Report

Measure description
Complete.

Resource lineage

Statement
This dataset has been created to match the standards of (already existing) Queensland component, using remote sensing techniques and field validation. Landsat ETM+ imagery was processed using the standard technique of Danaher (1995a) to produce a digital dataset of the tidal coastal wetland habitats. This technique has been recognized by Environment Australia (Ward et al. 1998) as a suitable protocol for the assessment of tidal coastal wetland habitats at a regional scale. The computer-based coastal wetland community classification was validated with fieldwork conducted during June and August 2001. Approximately 170 sites were accessed by boat or helicopter. At each site, information on mangrove community floristics and structure was documented. The Queensland and Northern Territory datasets were then standardized to remove discrepancies in the classification of coastal wetland habitats. A number of classes in the Queensland dataset were amalgamated in order to provide consistency between the two mapping products. The foreshore_flats dataset from Geoscience Australia's 250k topo (1994 edition) has been used as reference in the preparation of this dataset. DATA DICTIONARY 01. SURVEY_NME Alias: Survey Name The name describing the survey 02. SURVEY_ID Alias: Survey Identifier The survey code used to identify the information in the department's database library 03. CLASS Mangroves were classified to the community level based on dominant genus present and canopy density of the whole community. The density of the community was determined by estimating the PFC. A canopy cover of greater than 50% was classified as closed, while less than 50% was identified as open. The standard Specht (1987) vegetation categories of forest and shrub, which are based on height, were not included in this classification. This is due to the fact that vegetation height cannot be determined from the Landsat ETM+ data. Only areas subject to tidal inundation were included in this mapping exercise. Excluded classes included permanent pools of water and elevated land containing terrestrial vegetation. Tidally exposed non-vegetated intertidal flats along with seagrass or algal beds were also excluded. 04. VEG_FORM Alias: Broad Veg Form Broad structural vegetation formation. Attribute added 5/07/2019 to improve data display in NR Maps using 5 groupings: Mangrove Closed Forest, Mangrove Open Forest, Samphire/Salt Flat or Non Mangrove. 05. RELIABILITY A reliability class was assigned to each polygon within the classification based on the amount of ground truth data available (i.e. aerial photography and field data). A Highest Reliability - Complete aerial photography coverage. Fieldwork conducted 28% B High Reliability - Complete aerial photography coverage. No fieldwork conducted 52% C Average Reliability - No aerial photography available. Fieldwork conducted. OR No aerial photography available. Local cloud cover on satellite imagery 1% D Reliability Unknown (Further Ground Truthing required) - No aerial photography available. No fieldwork conducted. OR No aerial photography available. Local cloud cover on satellite imagery 19% 06. SOURCE_DAT Alias: Source Data This field indicates the base imagery processed to produce mapping in that area (path/row_date_bands).
Hierarchy level
Dataset
Hierarchy level
Dataset

Platform

Identifier

Code
research aeroplane

Metadata

Metadata identifier
urn:uuid/39fbb324-b184-4ac5-8d3e-9a2994bbecb9

Language
English
Character encoding
UTF8

Point of contact

Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) - IMAS Data Manager
Parent metadata
  • Seamap Australia National Benthic Habitat Layer (NBHL)

Type of resource

Resource scope
Dataset
Metadata linkage
https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/39fbb324-b184-4ac5-8d3e-9a2994bbecb9

Point of truth URL of this metadata record

Date info (Creation)
2020-09-23T12:30:10
Date info (Revision)
2023-09-19T13:26:36

Metadata standard

Title
ISO 19115-3:2018
 
 

Overviews

thumbnail
large_thumbnail

Spatial extent

N
S
E
W


Keywords

Benthic habitat
AODN Discovery Parameter Vocabulary
Biotic taxonomic identification
AODN Platform Vocabulary
research aeroplane
Australian and New Zealand Standard Research Classification (ANZSRC): Fields of Research
Environmental Management Environmental Sciences not elsewhere classified Marine and Estuarine Ecology (incl. Marine Ichthyology)
Global Change Master Directory (GCMD) Earth Science Keywords Version 8.0
EARTH SCIENCE | BIOSPHERE | AQUATIC ECOSYSTEMS | MARINE HABITAT

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Access to the record in catalogue
Read here the full details and access to the data.

Associated resources

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