Product catalogue
Arafura Marine Park survey - backscatter (SOL7491/GA0366)
This resource includes backscatter data for Arafura Marine Park (Arafura Sea) collected by Geoscience Australia (GA) and the Australian Institute of Marine Science during the period 2 – 15 November 2020 on the RV Solander. The survey was undertaken as a collaborative project funded through the National Environmental Science Program Marine Biodiversity Hub, with co-investment by GA and AIMS. The purpose of the project was to build baseline information for benthic habitats in Arafura Marine Park that will support ongoing environmental monitoring within the North Marine Park Network as part of the 10-year management plan (2018-2028). Data acquisition for the project included multibeam bathymetry and backscatter for two areas (Money Shoal and Pillar Bank), seabed samples and underwater imagery of benthic communities and demersal fish. This backscatter dataset contains two 32-bit geotiff files of the backscatter mosaic for two survey areas produced from the processed EM2040C Dual Head system using the CMST-GA MB Process v15.04.04.0 (x64) toolbox software co-developed by the Centre for Marine Science and Technology at Curtin University and Geoscience Australia. A detailed report on the survey is provided in: Picard, K. Stowar, M., Roberts, N., Siwabessy, J., Abdul Wahab, M.A., Galaiduk, R., Miller, K., Nichol, S. 2021. Arafura Marine Park Post Survey Report. Report to the National Environmental Science Program, Marine Biodiversity Hub ( https://www.nespmarine.edu.au/node/4505).
Simple
Identification info
- Date (Creation)
- 2021-02-24
- Date (Publication)
- 2021-03-16T03:37:58
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/145286
Identifier
- Codespace
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Digital Obejct Identifier
- Cited responsible party
-
Role Organisation / Individual Name Details Author Siwabessy, J.
PSCD Internal Contact
- Purpose
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Arafura 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
- Topic category
-
- Geoscientific information
Extent
))
Temporal extent
- Time period
- 2020-11-02 2020-11-15
- 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
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- 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
-
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AusSeabed
-
- Keywords
-
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Published_External
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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
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Download the geotifs [134.7 MB]
Download the geotifs [134.7 MB]
- Distribution format
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tif
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- OnLine resource
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Download the metadata [774 KB]
Download the metadata [774 KB]
- Distribution format
-
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pdf txt
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Resource lineage
- Statement
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The Arafura Marine Park Survey 2020, SOL7491/GA-0366 was acquired by Geoscience Australia (GA) and the Australian Institute of Marine Science during the period 2 – 15 November 2020 on the RV Solander led by Ms Kim Picard and Mr Marcus Stowal. This dataset was acquired using Kongsberg's SIS acquistion software and processed using CMST-GA MB Process v15.04.04.0 (x64) software by Justy Siwabessy. Processing: 1. Multibeam data were collected using a Kongsberg EM2040C multibeam echosounder system, mounted in the moon pool of the RV Solander. 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 25°. The final processed backscatter data were then gridded to the optimum 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 final 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/20251749-03cc-4b96-8ddc-4d2e4f44d8c7
- 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
-
Arafura Marine Park survey
Alternative metadata reference
- Title
-
Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/145286
- 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