Product catalogue
Darwin Harbour Habitat Mapping Program: NSGM Morphology Features
The seafloor morphology mapping approach used to derive this dataset follows Geoscience Australia’s draft National Seafloor GeoMorphology (NSGM) mapping scheme (Nanson and Nichol, 2018). The NSGM scheme is an extension of the Dove et al. (2016) approach, which characterises the seafloor in two sequential parts: Part 1 maps the seafloor Morphology (shape) using bathymetry data, and Part 2 uses additional data to interpret seafloor Geomorphology for those mapped morphological shapes. Part 1 of the NSGM scheme was applied to the project dataset, and consists of three hierarchical levels: Province, Surface and Feature. This dataset is published with the permission of the CEO, Geoscience Australia
Simple
Identification info
- Date (Creation)
- 2019-02-27T10:00:00
- Date (Publication)
- 2020-01-22T02:44:24
- Citation identifier
- ga-dataSetURI/https://pid.geoscience.gov.au/dataset/ga/127276
- Cited responsible party
-
Role Organisation / Individual Name Details Author Nanson, R.
- Status
- Completed
- Spatial representation type
Spatial resolution
- Level of detail
-
10 m
- Topic category
-
- Geoscientific information
Extent
Temporal extent
- Time period
- 2011 2017
Extent
))
- Maintenance and update frequency
- As needed
Resource format
- Title
-
Administration to complete
- Edition
-
Administration to complete
Resource format
- Title
-
Product data repository: Various Formats
- Website
-
Data Store directory containing the digital product files
Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes
- Product
-
-
seabed geomorphic features
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- Keywords
-
-
Published_External
-
Resource constraints
- Title
-
Creative Commons Attribution 4.0 International Licence
- Alternate title
-
CC-BY
- Edition
-
4.0
- Access constraints
- License
- Use constraints
- License
Resource constraints
- Title
-
Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
- Language
- English
- Character encoding
- UTF8
Distribution Information
- Distributor contact
-
Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
Voice
- OnLine resource
-
Download the data (shp) [1.5 MB]
Download the data (shp) [1.5 MB]
- OnLine resource
-
Link to collection record
Link to collection record
Resource lineage
- Statement
-
This dataset contains NSGM Feature shapefiles, derived using Benthic Terrain Modeller (Walbridge et al., 2019) for the Darwin Harbour Mapping Project. This tool was applied to a 10m bathymetry grid derived from the principal bathymetry grid of this project (1 m resolution) on the Darwin region (eCat 127094) at a range of annulus settings, to identify High and Low features of interest. The success of each resulting BTM grid was assessed by eye, and the most representative datasets were further processed and generalised by applying ArcGIS Majority Filter and Aggregation tools. The resulting grids were exported to shapefiles and classified into appropriate NSGM Feature categories. Based on this dataset, the study area is characterised by these NSGM Features: Depressions (15%), Platforms (14%), Ridges (13%), Knolls (2%) and Bedforms (fields) (1%).
- Hierarchy level
- Dataset
Reference System Information
- Reference system identifier
- EPSG/GDA94 (EPSG:4283)
Metadata constraints
- Title
-
Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
-
urn:uuid/c3689d0a-8de6-4499-8eec-ce234a45ab0c
- Title
-
GeoNetwork UUID
Type of resource
- Resource scope
- Dataset
- Name
-
Darwin Harbour Habitat Mapping Program: NSGM Morphology Features
Alternative metadata reference
- Title
-
Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/127276
- Metadata linkage
-
https://ecat.ga.gov.au/geonetwork/srv/eng//metadata/c3689d0a-8de6-4499-8eec-ce234a45ab0c
- Date info (Creation)
- 2019-02-25T23:29:48
- Date info (Revision)
- 2019-02-25T23:29:48
Metadata standard
- Title
-
AU/NZS ISO 19115-1:2014
Metadata standard
- Title
-
ISO 19115-1:2014
Metadata standard
- Title
-
ISO 19115-3 (Draft Schemas 2015)
- Edition date
- 2015-07-01T00:00:00
- Title
-
Geoscience Australia Community Metadata Profile of ISO 19115-1:2014
- Edition
-
Version 2.0, April 2015