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Shellharbour Tharawal marine survey - backscatter (NSWENV20171130/GA4878)

Created 16/10/2025

Updated 16/10/2025

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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.

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Field Value
Title Shellharbour Tharawal marine survey - backscatter (NSWENV20171130/GA4878)
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/0271e929-1e20-4747-8d7f-dc5751a0f542
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 25/05/2017 - 30/11/2017
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        150.8757,
        -34.5995
      ],
      [
        150.9713,
        -34.5995
      ],
      [
        150.9713,
        -34.4915
      ],
      [
        150.8757,
        -34.4915
      ],
      [
        150.8757,
        -34.5995
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Shellharbour Tharawal marine survey - backscatter (NSWENV20171130/GA4878)". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/shellharbour-tharawal-marine-survey-backscatter-nswenv20171130-ga4878