Product catalogue
South-west Corner Marine Park survey – backscatter (GA-4858)
This resource includes seabed backscatter data for South-west Corner Marine Park collected by Geoscience Australia during the periods 9 – 12 March 2020 and 27 January – 16 February 2021 on the charter vessel Santosha. The survey was undertaken as a collaborative project with the University of Western Australia, the University of Tasmania and the Australian Centre for Field Robotics (University of Sydney) and funded through the National Environmental Science Program Marine Biodiversity Hub, with co-investment by all partners and the Director of National Parks. The purpose of the project was to build baseline information for benthic habitats on the continental shelf in the marine park that will support ongoing environmental monitoring within the South-west Marine Park Network as part of the 10-year management plan (2018-2028). Data acquisition for the project included multibeam bathymetry and backscatter for an area covering 330 km^2 offshore from Cape Naturaliste to Cape Leeuwin coast, with underwater imagery of benthic communities and demersal fish collected by University of Western Australia on separate field deployments. This backscatter dataset contains a 4 m resolution 32-bit geotiff file of the survey area produced from the processed Kongsberg EM2040C multibeam sonar system data using the CMST-GA MB Process v15.04.04.0 (.64) toolbox software co-developed by the Centre for Marine Science and Technology at Curtin University and Geoscience Australia. For further information see: Giraldo-Ospina, A. et al., 2021. South-west Corner Marine Park Post Survey Report. Report to the National Environmental Science Program, Marine Biodiversity Hub.
Simple
Identification info
- Date (Creation)
- 2021-03-29
- Date (Publication)
- 2020-09-22T22:44:49
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/145282
Identifier
- Codespace
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Digital Obejct Identifier
- Purpose
-
South-west Corner Marine Park survey
- Status
- Completed
- Point of contact
-
Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Siwabessy, J.
PSCD Internal Contact Resource provider Place, Space and Communities Division
External Contact
- Spatial representation type
Spatial resolution
- Level of detail
-
5m
- Topic category
-
- Geoscientific information
Extent
))
Temporal extent
- Time period
- 2020-03-14 2021-02-16
- Maintenance and update frequency
- As needed
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
- theme.ANZRC Fields of Research.rdf
-
-
EARTH SCIENCES
-
- Theme
-
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Marine
-
- Keywords
-
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Backscatter
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- Instrument
-
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Multibeam
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- Product
-
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Backscatter grids
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- Project
-
-
AusSeabed
-
- Keywords
-
-
Published_Internal
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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 geotifs [44.4 MB]
Download the geotifs [44.4 MB]
- Distribution format
-
-
tif
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- OnLine resource
-
Download the Esri ASCII data [41.9 MB]
Download the Esri ASCII data [41.9 MB]
- Distribution format
-
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asc xml ovr prj
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- OnLine resource
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Download the metadata [20.4 MB]
Download the metadata [20.4 MB]
- Distribution format
-
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pdf txt
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Resource lineage
- Statement
-
The South-west Corner Marine Park Survey 2020 & 2021, GA-4858 was acquired by Geoscience Australia (GA) and CSIRO during the periods 9 – 12 March 2020 (led by Dr. Scott Nichol) and 27 January – 16 February 2021 (led by Mr Aero Leplastrier) on the charter vessel Santosha. This dataset was acquired using Kongsberg's SIS acquistion software and processed using CMST-GA MB Process v15.04.04.0 software by Justy Siwabessy. Processing: 1. Multibeam data were collected using a Kongsberg EM2040C multibeam echosounder system, mounted in the moon pool of the charter vessel Santosha. Motion referencing and navigation data were collected with an Applanix Position and Orientation system and a C-Nav GPS system, respectively. Multibeam data were acquired using Kongsberg’s Seabed Information System (SIS) software. 2. These data were processed using the multibeam backscatter CMST-GA MB Process v15.04.04.0 (x64) toolbox software co-developed by the Centre for Marine Science and Technology (CMST) at Curtin University of Technology and GA (described in Gavrilov et al., 2005; Parnum and Gavrilov 2011). 3. The process involved removal of the system transmission loss, removal of the system model, calculation of the incidence angle, correction of the beam pattern, calculation of the angular backscatter response within a sliding window of 300 pings with a 50% overlap in a 1° bin, removal of the angular dependence, and restoration to the backscatter strength at an angle of 25°. The final processed backscatter data were then gridded to 4 m horizontal resolution and exported for display and analysis. In GA, further process was conducted by Justy Siwabessy to fine tune beam pattern correction and to combine with data acquired in 2021. 4. The processed data was finally exported as grids in the optimum resolution the data can provide.
Reference System Information
- Reference system identifier
- EPSG/WGS 84 (EPSG:4326)
Metadata constraints
- Title
-
Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
-
urn:uuid/296b44de-1496-420e-93b1-3c310578ba66
- Title
-
GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
- Contact
-
Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Siwabessy, J.
PSCD Internal Contact
Type of resource
- Resource scope
- Dataset
- Name
-
South-west Corner Marine Park survey
Alternative metadata reference
- Title
-
Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/145282
- Date info (Creation)
- 2020-09-02T06:12:14
- Date info (Revision)
- 2020-09-02T06:12:14
Metadata standard
- Title
-
AU/NZS ISO 19115-1:2014
Metadata standard
- Title
-
ISO 19115-1:2014
Metadata standard
- Title
-
ISO 19115-3
- Title
-
Geoscience Australia Community Metadata Profile of ISO 19115-1:2014
- Edition
-
Version 2.0, September 2018
- Citation identifier
- https://pid.geoscience.gov.au/dataset/ga/144285