Product catalogue
Beagle Marine Park backscatter data 2018
This resource includes multibeam sonar backscatter data for Beagle Marine Park (Bass Strait) collected by Geoscience Australia (GA) and the Institute for Marine & Antarctic Studies (University of Tasmania; UTAS) during the period 17 – 26 June 2018 on the RV Bluefin. The survey was undertaken as a collaborative project funded through the National Environmental Science Program Marine Biodiversity Hub, with co-investment by GA and UTAS. The purpose of the project was to build baseline information for benthic habitats in the Beagle Marine Park that will support ongoing environmental monitoring within the South-east Marine Park Network as part of the 10-year management plan (2013-2023). Data acquisition for the project was completed during three separate voyages: Phase 1 - Seabed mapping by multibeam sonar; Phase 2 – Seabed imagery acquisition by Autonomous Underwater Vehicle, and sediment sampling; Phase 3 – Survey of demersal fish communities using Baited Remote Underwater Video (BRUVs). This dataset from Phase 1 comprises 11 backscatter grids derived from multibeam sonar data gridded at 1 m spatial resolution, covering a combined area of 364 km2. A detailed report on the survey is provided in: Falster, G., Monk, J., Carroll, A., Siwabessy, J., Deane, A., Picard, K., Dando, N., Hulls, J., Nichol, S., Barrett, N. 2019. Australian Marine Park Baseline and Monitoring Survey: Post Survey Report, Beagle Marine Park, South-east Marine Park Network. Report to the National Environmental Science Program, Marine Biodiversity Hub.
Simple
Identification info
- Date (Creation)
- 2019-08-01
- Date (Publication)
- 2019-08-05T23:33:24
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/130329
- Citation identifier
- Digital Object Identifier/http://dx.doi.org/10.26186/5d4ceba3cc586
- Cited responsible party
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Role Organisation / Individual Name Details Author Siwabessy, J.
- Status
- Completed
- Point of contact
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Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Siwabessy, J.
- Spatial representation type
- Topic category
-
- Geoscientific information
Extent
Temporal extent
- Time period
- 2018-06-17 2018-06-26
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
- theme.ANZRC Fields of Research.rdf
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EARTH SCIENCES
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- Theme
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backscatter
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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 4.0 International Licence
- Alternate title
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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
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Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
Voice
- OnLine resource
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Download the data (esri ascii)
Download the data (esri ascii)
- Distribution format
-
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esri ascii
-
- OnLine resource
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Download the data (esri grid)
Download the data (esri grid)
- Distribution format
-
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Desri grid
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- OnLine resource
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Download the data (imagery)
Download the data (imagery)
- Distribution format
-
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png
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- OnLine resource
-
Download the data (kml)
Download the data (kml)
- Distribution format
-
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kml
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- OnLine resource
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Download the metadata (txt)
Download the metadata (txt)
- Distribution format
-
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txt
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- OnLine resource
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Download the QC Reports (pdf)
Download the QC Reports (pdf)
- Distribution format
-
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pdf
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Resource lineage
- Statement
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The Beagle Marine Park Survey 2018, GA-0364 was acquired by Geoscience Australia (GA), the University of Tasmania (UTAS) between 17 and 26 June 2018, led by Dr. Scott Nichol (GA) and Dr. Neville Barrett (UTAS).
This dataset was acquired using Kongsberg's SIS acquistion software and processed onboard 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 MV Bluefin. 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 100 pings with a 50% overlap in a 1° bin, removal of the angular dependence, and restoration to the backscatter strength at an angle of 40°. The final processed backscatter data were then gridded to 1 m horizontal resolution and exported for display and analysis.
In GA, further process was conducted by Justy Siwabessy to fine tune beam pattern correction.
4. The processed data was finally exported as grids in the optimum resolution the data can provide.
Metadata:
The multibeam bathymetry was acquired by the following survey:
- Survey Name: Beagle Marine Park Survey 2018 (GA-0364)
- Vessel Name: RV Bluefin
- Institutions: Geoscience Australia, UTAS
- Country: Australia
- Operator: AMC, UTAS
- Multibeam system: Kongsberg EM2040C
- Year of installation: 2014
- Nominal sonar frequency: 300 kHz
- Number of beams: 400 beams
- Beamwidth across track: 1.3 degrees
- Beamwidth along track: 1.3 degrees
- Pulse length: variable
- Selectable depth range: 5 m - 60 m
- Vessel speed: 7 - 10 knots
- Start Date: 17/06/2018
- End Date: 26/06/2018
- Start Port: Launceston
- End Port: Stanley
- Processing software: CMST-GA MB Process v15.04.04.0
- Grid resolution: 1 m
- Number of grids: 11
- Total surface coverage: 366 km2
- Horizontal Datum: WGS84 UTM-55S
This dataset is published with the permission of the CEO, Geoscience Australia
Metadata constraints
- Title
-
Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
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urn:uuid/52cf4bee-eeec-4b80-ad31-db2f27f4c9e6
- Title
-
GeoNetwork UUID
- Contact
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Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Parums, R.
Type of resource
- Resource scope
- Dataset
Alternative metadata reference
- Title
-
Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/130329
- Date info (Creation)
- 2019-07-08T01:05:42
- Date info (Revision)
- 2019-07-08T01:05:42
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
-
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/130301