9d59fea9-75c3-4158-946e-9d4eaf4ba4c7 urn:uuid eng UTF-8 nonGeographicDataset nonGeographicDataset 2026-03-05T06:43:01 creation ISO 19115 2016 Outer Darwin Harbour Marine Survey 2015: High resolution backscatter grid 9d59fea9-75c3-4158-946e-9d4eaf4ba4c7 This resource contains multibeam sonar backscatter 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: <ol> <li> Obtain high resolution geophysical (bathymetry) data for outer Darwin Harbour, including Shoal Bay; </li> <li> Characterise substrates (acoustic backscatter properties, grainsize, sediment chemistry) for outer Darwin Harbour, including Shoal Bay; and </li> <li> 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. This dataset comprises multibeam backscatter data. </li> </ol> 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 {"type": "Polygon", "coordinates": [[[130.5095, -12.4234], [130.9881, -12.4234], [130.9881, -12.12486], [130.5095, -12.12486], [130.5095, -12.4234]]]} 130.5095 130.9881 -12.4234 -12.12486 NT Published_External backscatter coastal waters marine multibeam sedimentology Download the data (esri ascii) documentDigital Download the data (esri ascii) ZIP Download the data (esri grid) documentDigital Download the data (esri grid) ZIP Download the data (imagery) documentDigital Download the data (imagery) ZIP Download the data (kml) documentDigital Download the data (kml) ZIP Download the metadata (text) documentDigital Download the metadata (text) ZIP Link to collection record documentDigital Link to collection record HTML