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Outer Darwin Harbour Marine Survey 2015: Total sediment metabolism, mineral specific surface area, carbonate and element concentrations and C and N isotopes in seabed sediments.

Created 17/10/2025

Updated 17/10/2025

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This resource contains surface sediment data for Outer Darwin Harbour collected by Geoscience Australia (GA), the Australian Institute of Marine Science (AIMS) and the Northern Territory Government (Department of Land Resource Management) during the period from 28 May and 23 June 2015 on the RV Solander (survey SOL6187/GA0351). This project was made possible through offset funds provided by INPEX-led Ichthys LNG Project to Northern Territory Government Department of Land Resource Management, and co-investment from Geoscience Australia and Australian Institute of Marine Science. The intent of this four year (2014-2018) program is to improve knowledge of the marine environments in the Darwin and Bynoe Harbour regions by collating and collecting baseline data that enable the creation of thematic habitat maps that underpin marine resource management decisions. The specific objectives of the survey were to:

Obtain high resolution geophysical (bathymetry) data for outer Darwin Harbour, including Shoal Bay; Characterise substrates (acoustic backscatter properties, grainsize, sediment chemistry) for outer Darwin Harbour, including Shoal Bay; and Collect tidal data for the survey area.

Data acquired during the survey included: multibeam sonar bathymetry and acoustic backscatter; physical samples of seabed sediments, underwater photography and video of grab sample locations and oceanographic information including tidal data and sound velocity profiles. These datasets comprise total sediment metabolism, mineral specific surface area and carbonate and element concetrations, and C and N isotopes of seabed sediments. A detailed account of the survey is provided in: Siwabessy, P.J.W., Smit, N., Atkinson, I., Dando, N., Harries, S., Howard, F.J.F., Li, J., Nicholas, W.A., Potter, A., Radke, L.C., Tran, M., Williams, D. and Whiteway, T., 2015. Outer Darwin Harbour Marine Survey 2015: GA0351/SOL6187 Post-survey report. Record 2016/008. Geoscience Australia, Canberra. http://dx.doi.org/10.11636/Record.2016.008

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Field Value
Title Outer Darwin Harbour Marine Survey 2015: Total sediment metabolism, mineral specific surface area, carbonate and element concentrations and C and N isotopes in seabed sediments.
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/aca3768b-57e7-4763-bb41-d8fe5751a2af
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 22/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
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  "coordinates": [
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        130.595233,
        -12.236594
      ],
      [
        130.9833,
        -12.236594
      ],
      [
        130.9833,
        -12.236548
      ],
      [
        130.595233,
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      ],
      [
        130.595233,
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      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Outer Darwin Harbour Marine Survey 2015: Total sediment metabolism, mineral specific surface area, carbonate and element concentrations and C and N isotopes in seabed sediments.". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/outer-darwin-harbour-marine-survey-2015-total-sediment-metabolism-mineral-specific-surface-area1