Citation

Geoscience Australia provides most of its products for free under a Creative Commons Attribution 3.0 Australia Licence. We only require that you reference the use of our data or information using the following citation:
Huang, Z. & Nichol, S., 2013. National Submarine Canyons of Australia. Geoscience Australia, Canberra.

Abstract

On the Australian margin, submarine canyons have formed along all sides of the continent and are exposed to the potential influence of large-scale ocean currents, including the Leeuwin Current (western to southern margins) and the East Australian Current (eastern margin). Recognised in marine bioregional plans as potential biodiversity hotspots, many of these canyons sit within the new national network of Commonwealth Marine Reserves. This GIS polygon layer contains 713 submarine canyons along the Australian continental margin. The locations and extents of these canyons were derived from a range of bathymetry datasets.
Google map showing geographic bounding box with values North bound -8.88 East bound 159.23 West bound 110.63 South bound -46.86
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Product Type/Sub Type

dataset - Marine Data

Constraints

license
Creative Commons Attribution 4.0 International Licence

IP Owner

Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

2013

Product Type

dataset

Topic Category

oceans

Keywords

Marine Data
seabed
marine
geomorphology
NERP Marine Biodiversity Hub
Marine Geoscience

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Geographic Extent

North bound
-8.88
East bound
159.23
West bound
110.63
South bound
-46.86

Lineage

Three bathymetry datasets were used: 1. Geoscience Australia's 250m national bathymetry grid, 2. Geoscience Australia's 50m multibeam bathymetry grids, and 3. James Cook University's 100m Great Barrier Reef and Coral Sea bathymetry grid. The hill-shaded layers of these bathymetry grids were generated to display 3-D effects. The extent of individual canyons was manually digitised as a GIS polygon using these hill-shaded layers to aid mapping. The heads and foots of individual canyons were also identified in the process. After mapping the initial number of submarine canyon candidates a filtering process was applied by defining a canyon as a feature with the following bathymetric characteristics: (i) water depth at the canyon head less than 4000 m; (ii) depth range between the canyon head and foot greater than 600 m, and; (iii) incision of the canyon head greater than 100 m. On this basis, a total of 713 canyons were mapped for the Australian mainland margin.

Digital Transfer Options

onLine

DISTRIBUTION Format

shp

Distributor

Role
distributor
Organisation Name
Geoscience Australia
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address

Metadata File Identifier

e3dd1af5-7b05-50fd-e044-00144fdd4fa6

Metadata Standard Name

ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata

Metadata Standard Version

1.1

Metadata Date Stamp

2015-03-23

METADATA SECURITY CLASSIFICATION

unclassified

Metadata Contact

Role
pointOfContact
Organisation Name
Geoscience Australia
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address
Downloads
For information on acquiring this product,
please contact Geoscience Australia Client Services via:

fax:
+61 2 6249 9960; or
phone:
1800 800 173 (within Australia);
 
+61 2 6249 9966 (outside Australia).