Product catalogue
Oceanic Shoals Commonwealth Marine Reserve - High Resolution Multibeam Acoustic Backscatter Grids
This resource contains bathymetry and backscatter data for the Oceanic Shoals Commonwealth Marine Reserve (CMR) in the Timor Sea collected by Geoscience Australia during September and October 2012 on RV Solander (survey GA0339/SOL5650). The survey used a Kongsberg EM3002 300 kHz multibeam sonar system mounted in single head configuration to map four areas, covering a combined area of 507 square kilometres. Data are gridded to 2 m spatial resolution. The Oceanic Shoals Commonwealth Marine Reserve survey was undertaken as an activity within the Australian Government's National Environmental Research Program Marine Biodiversity Hub and was the key component of Research Theme 4 - Regional Biodiversity Discovery to Support Marine Bioregional Plans. Hub partners involved in the survey included the Australian Institute of Marine Science, Geoscience Australia, the University of Western Australia, Museum Victoria and the Museum and Art Gallery of the Northern Territory. Data acquired during the survey included: multibeam sonar bathymetry and acoustic backscatter; sub-bottom acoustic profiles; physical samples of seabed sediments, infauna and epibenthic biota; towed underwater video and still camera observations of seabed habitats; baited video observations of demersal and pelagic fish, and; oceanographic measurements of the water column from CTD (conductivity, temperature, depth) casts and from deployment of sea surface drifters. Further information on the survey is available in the post-survey report published as Geoscience Australia Record 2013/38 (Nichol et al. 2013).
Simple
Identification info
- Date (Publication)
- 2014-01-01T00:00:00
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/79007
- Cited responsible party
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Role Organisation / Individual Name Details Publisher Geoscience Australia
Canberra Author Siwabessy, J.
1 Author Picard, K.
2
- Point of contact
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Role Organisation / Individual Name Details Owner Commonwealth of Australia (Geoscience Australia)
Custodian Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Siwabessy, J.
Place and Communities Internal Contact
- Topic category
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- Geoscientific information
Extent
))
- Maintenance and update frequency
- As needed
Resource format
- Title
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Product data repository: Various Formats
- Website
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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
- Keywords
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Marine Data
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Backscatter Grid
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- Theme
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backscatter
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- Theme
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geoscience
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- Theme
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marine environmental baselines
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- Theme
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multibeam
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- Theme
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NERP Marine Biodiversity Hub
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- Theme
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marine
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- Theme
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NERP
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- Keywords
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AU-WA
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- Australian and New Zealand Standard Research Classification (ANZSRC)
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Environmental Sciences
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- Keywords
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Published_External
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Resource constraints
- Title
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Creative Commons Attribution-NonCommercial 4.0 International Licence
- Alternate title
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CC-BY-NC
- Edition
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4.0
- Access constraints
- License
- Use constraints
- License
Resource constraints
- Title
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Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
- Language
- English
- Character encoding
- UTF8
Distribution Information
- Distributor contact
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Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
Voice
- OnLine resource
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File download
Download the metadata (pdf)
- OnLine resource
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File download
Download the data (XYZ ascii)
- OnLine resource
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File download
Download the data (tif)
- OnLine resource
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File download
Download the data (KML)
- OnLine resource
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File download
Download the data (ArcGIS-grid)
- OnLine resource
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File download
Download the data (ESRI ascii)
Resource lineage
- Statement
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The backscatter data were processed using CMST-GA MB Process v10.10.17.0 software. The fully processed backscatter strengths were corrected for transmission loss and insonification area. The process within the toolbox also involved removal of the system transmission loss, removal of the system model, calculation of the incidence angle and removal of the angular dependence. The grid values are basically the average values of the processed backscatter point data within each grid cell of predefined size, normalised to the backscatter strength at an angle of 25 degrees.
- Hierarchy level
- Dataset
- Description
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Data was sourced from the NERP Marine Biodiversity Hub. The Marine Biodiversity Hub is supported through funding from the Australian Government's National Environmental Research Program (NERP), administered by the Department of Sustainability, Environment, Water, Population and Communities (DSEWPAC).
Processing software: CMST-GA MB Process v10.10.17.0
Survey Name: Oceanic Shoals Marine Surveys GA-0339/SOL5650
Vessel: RV Solander
Country: Australia
Operator: AIMS
Bathymetric system used: Kongsberg EM3002
Year of installation: 2012
Nominal sonar frequency: 300 kHz
Number of beams: 160 beams
Beamwidth across track: 1.5 degrees
Beamwidth along track : 1.5 degrees
Pulse length: Variable, operator selectable
Depth range: 40 - 190 m
Vessel speed: 8 - 10 knots
Start date of survey: 12 September 2012
End date of survey: 06 October 2012
Institution: AIMS & Geoscience Australia
Start port: Broome
End port: Broome
Survey leaders: Scott Nichol
Data acquired and processed by: Justy Siwabessy, Kim Picard, Ian Atkinson
Grids resolution: 2m
Number of grids: 4
This dataset consists of the following files:
- Georeferenced colour tif images in 2m resolution, shaded with sun azimuth 45 degrees
- ASCII xyz (*.txt) grids in 2m resolution in UTM52S WGS84
- ESRI ascii (*.asc) grids in 2m resolution in UTM52S WGS84
- ESRI Rasters in 2m resolution
- KMZ files
Metadata constraints
- Title
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Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
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urn:uuid/f21824a7-8db2-5c00-e044-00144fdd4fa6
- Title
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GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
- Contact
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Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Siwabessy, J.
Place and Communities Internal Contact
Type of resource
- Resource scope
- Dataset
- Name
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dataset
Alternative metadata reference
- Title
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Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/79007
- Date info (Revision)
- 2018-04-20T06:10:35
- Date info (Creation)
- 2014-02-11T00:00:00
Metadata standard
- Title
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AU/NZS ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-3
- Title
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Geoscience Australia Community Metadata Profile of ISO 19115-1:2014
- Edition
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Version 2.0, September 2018
- Citation identifier
- https://pid.geoscience.gov.au/dataset/ga/122551