Product catalogue
Shellharbour Tharawal marine survey - backscatter (NSWENV20171130/GA4878)
This resource includes bathymetry data acquired during the Shellharbour Tharawal marine survey collected by the NSW government (Department of Planning and Environment – DPE) during the period 25 May – 30 November 2017 onboard the RV Bombora using DPE’s R2Sonic 2022 multibeam sonar. The Shellharbour bathymetry survey was led by Dr. Bradley Morris (DPE Coasts and Marine) as part of SeabedNSW program funded by NSW Coastal Reforms package. The purpose of the project was to 1) provide a baseline dataset and 2) map the spatial distribution of seabed types. The data will provide a better understanding of nearshore sediment distribution/transport mechanisms for improved assessment of threats/risks associated with erosion events (i.e. East Coast Lows) and changing sea levels. This dataset contains a 32-bit floating point geotiff file of backscatter (5m gridded) for the study area, derived from the processed R2Sonic 2022 multibeam data, using Hypack, R2Sonic GUI, POSView, POSPac, Qimera and FMGT software. A detailed report on the survey is provided in: i) AusSeabed Survey Report and ii) NSW DPE Scientific Rigor Statement NSWENV_20171130_Shellharbour_MB_ScientificRigour.pdf. This dataset is not to be used for navigational purposes. This dataset is published with the permission of the Senior Team Leader and the department’s Hydrosurveyor, Coasts and Marine Science, NSW Dept. Planning and Environment.
Simple
Identification info
- Date (Publication)
- 2020-09-22T22:44:49
- Date (Revision)
- 2022-02-18T02:25:36
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/146308
- Citation identifier
- Digital Object Identifier/https://dx.doi.org/10.26186/146308
- Cited responsible party
-
Role Organisation / Individual Name Details Author Morris, B.
Coasts & Marine Team, Waters Wetlands and Coasts Science, NSW Department of Planning and Environment External Contact Author Linklater, M.
Coasts & Marine Team, Waters Wetlands and Coasts Science, NSW Department of Planning and Environment External Contact Author Ingleton, T.
Coasts & Marine Team, Waters Wetlands and Coasts Science, NSW Department of Planning and Environment External Contact Author Sutherland, M.
Coasts & Marine Team, Waters Wetlands and Coasts Science, NSW Department of Planning and Environment External Contact Author Holtznagel, S.
Coasts & Marine Team, Waters Wetlands and Coasts Science, NSW Department of Planning and Environment External Contact Publisher Commonwealth of Australia (Geoscience Australia)
Voice
- Purpose
-
marine 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 Principal investigator Ingleton, T.
Coasts & Marine Team, Waters Wetlands and Coasts Science, NSW Department of Planning and Environment External Contact Principal investigator Morris, B.
Coasts & Marine Team, Waters Wetlands and Coasts Science, NSW Department of Planning and Environment External Contact Principal investigator Sutherland, M.
Coasts & Marine Team, Waters Wetlands and Coasts Science, NSW Department of Planning and Environment External Contact Principal investigator Kinsela, M.
Coasts & Marine Team, Waters Wetlands and Coasts Science, NSW Department of Planning and Environment External Contact Principal investigator Linklater, M.
Coasts & Marine Team, Waters Wetlands and Coasts Science, NSW Department of Planning and Environment External Contact Principal investigator Hanslow, D.
Coasts & Marine Team, Waters Wetlands and Coasts Science, NSW Department of Planning and Environment External Contact Point of contact Ingleton, T.
Coasts & Marine Team, Waters Wetlands and Coasts Science, NSW Department of Planning and Environment External Contact Point of contact Sutherland, M.
Coasts & Marine Team, Waters Wetlands and Coasts Science, NSW Department of Planning and Environment External Contact Processor Allen, K.
Coasts & Marine Team, Waters Wetlands and Coasts Science, NSW Department of Planning and Environment External Contact Processor Sutherland, M.
Coasts & Marine Team, Waters Wetlands and Coasts Science, NSW Department of Planning and Environment External Contact Resource provider Place, Space and Communities Division
External Contact
- Spatial representation type
Spatial resolution
- Level of detail
-
2m, 5m
- Topic category
-
- Geoscientific information
Extent
))
Temporal extent
- Time period
- 2017-05-25 2017-11-30
- 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
-
-
Marine
-
- Keywords
-
-
Bathymetry
-
- Instrument
-
-
Multibeam
-
- Product
-
-
Bathymetric grids
-
- Project
-
-
AusSeabed
-
- Keywords
-
-
Published_External
-
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 metadata (pdf) [1.5 MB]
Download the metadata (pdf) [1.5 MB]
- Distribution format
-
-
pdf txt
-
- OnLine resource
-
Shellharbour Backscatter 2017 5m (tif) [5.83 MB]
Shellharbour Backscatter 2017 5m (tif) [5.83 MB]
- Distribution format
-
-
tif
-
Resource lineage
- Statement
-
While AusSeabed aims to publish data based on the requirements stated in the AusSeabed multibeam guidelines (version 1, https://australian-multibeam-guidelines.github.io), we will also publish interim products (version 0) that are currently available, but have not yet been standardised (version 1). Users should be aware that V1 products will always supersede V0 products. This dataset was produced using QPS Qimera and FMGT software and the AusSeabed-recommended processing methodology as follows.
1. R2Sonic ‘true-pix’ amplitude and ‘snippets’ time-series were treated separately. Truepix files were exported as GSF from Hypack using MBMAX and then imported into a new QPS FMGT project. R2Sonic ‘snippets’ (time-series) paired files were imported into a separate QPS FMGT project and processed using the ‘time-series’ functionality.
2. A cleaned bathymetry DEM was also imported into each of the FMGT projects.
3. For each QPS FMGT project processing options were adjusted within the Processing Parameters tab as follows: Transmit/receive, Power Gain Correction and Apply Beam Pattern Correction were selected and a 60⁰ beam angle cut-off applied.
4. For the Sonar Defaults tab, system options are set to automatic and R2Sonic 2022 sonar type selected. Surface Sound Speed is set to 1520 metres/second and Angle Varied Gain set to ‘Trend’ with a default window size of 300. All other parameters are left as default.
5. Mosaics are generated at 5m grid scale either as a single mosaic or as tiles, depending on file size with the cleaned bathy surface activated.
6. The backscatter adjustment function was used to adjust line brightness for individual transects to provide a more uniform mosaic.
7. Once completed mosaics were exported as geotiffs and XYA from each project in grid co-ordinates WGS84 56S.
8. The final processed grid was exported as a 32-bit floating point Geotiff at 5m resolution.
Reference System Information
- Reference system identifier
- EPSG/WGS 84 / UTM zone 56S (EPSG:32756)
Reference System Information
- Reference system identifier
- EPSG/EGM2008 geoid height (EPSG:3855)
- Hierarchy level
- Collection hardware
Platform
Identifier
- Code
- RV Bombora
Instrument
Identifier
- Code
- R2Sonic 2022
Metadata constraints
- Title
-
Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
-
urn:uuid/d218c7a7-110b-4076-93cc-10497e04fcdc
- Title
-
GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
- Contact
-
Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Owner Siwabessy, J
Geoscience Australia Internal Contact Point of contact Siwabessy, J.
PSCD Internal Contact
Type of resource
- Resource scope
- Dataset
Alternative metadata reference
- Title
-
Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/146308
- 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