The NSW Continental Slopes survey GA-2413, SS10/2006 was acquired by Geoscience australia onboard the RV Southern Surveyor from the 12th of October to the 25th of October 2006. The geographical range stretched from Jervis bay in the South to Port Stephens in the North. The aim was to assess the physical nature of the NSW continental slope, improve our understanding of the surface and subsurface structure of the continental slope and to investigate the history of sediment movement along the continental slope.<p><p>This dataset is not to be used for navigational purposes.

The Petrel Sub-basin CO2 storage 2D seismic survey GA-0336, was acquired by the MV Duke in the Bonaparte Bay, NW Australia for Geoscience Australia between the the 3rd of May to the 24th of June 2012. This survey was part of the Australian government's National Low emission Coal Initiative (NLECI).The purpose was to acquire geophysical data on shallow water (less than 120m water depth) in the Petrel sub-basin to support investigation for CO2 storage potential in the area. Multibeam bathymetry data was acquired by the vessel at the same time as the seismic data. This bathymetry dataset consist of the high resolution bathymetry grids (2m) of all the swath data acquired by the MV Duke.<p><p>This dataset is not to be used for navigational purposes.

This dataset contains the processed bathymetric dataset from the Lord Howe and Lord How Island survey area held by Geoscience Australia. This dataset includes multibeam echosounder data and was gridded at 50m resolution of the Lord Howe survey area and a 10m resolution of Lord Howe Island, based on the optimal resolution for the depth range encountered. The objective of the survey on the Lord Howe Island shelf (NSW) in 2008 (SS062008) was to map seabed bathymetry and characterise benthic environments through co-located sampling of surface sediments and infauna, rock coring, observation of benthic habitats using underwater towed video, and measurement of ocean tides and wavegenerated currents. Subbottom profile data was also collected to map sediment thickness and shelf stratigraphy. Data and samples were acquired using the National Facility Research Vessel Southern Surveyor. This dataset is published with the permission of the CEO, Geoscience Australia. Not to be used for navigational purposes.

<b>This record was superseded on 13/02/2023 with approval from the Director, National Seabed Mapping as it has been superseded by <a href="https://pid.geoscience.gov.au/dataset/ga/147703">eCat 147703</a></b> <p>The existing regional bathymetric grid of the Kerguelen Plateau, south-west Indian Ocean, was updated using new singlebeam echosounder data from commercial fishing and research voyages, and some new multibeam swath bathymetry data. Source bathymetry data varies from International Hydrographic Organisation (IHO) S44 Order 1a to 2. The source data were subjected to area-based editing to remove data spikes, then combined with the previous Sexton (2005) grid to produce a new grid with a resolution of 0.001-arcdegree. Satellite-derived datasets were used to provide island topography and to fill in areas of no data. The new grid improves the resolution of morphological features observed in earlier grids, including submarine volcanic hills on the top of the Kerguelen Plateau and a complex of submarine channels draining the southern flank of the bank on which Heard Island sits. <p>The Heard and McDonald Islands are situated on the Kerguelen Plateau and lie within Australia's marine jurisdiction.<p><p>This dataset is not to be used for navigational purposes.

The TOPAS Sea Trials survey GA-2361, was acquired by Geoscience Australia after the installation of the new Sub bottom profiler (TOPAS) onboard the RV Southern Surveyor during the 9th and the 10th of December 2004. The survey loacation was offshore Brisbane. The aim of the survey was to test the new sub bottom profiler installed onboard. The bathymetry grids consists of 5,10 and 40 resolution projected in Easting and Northing WGS84, UTM56S.<p><p>This dataset is not to be used for navigational purposes.

The remote Eastern frontiers project aimed to provide a geological and petroleum prospectivity assessement of the Faust Capel Basins. Funded through Australian Governement Initiatives (Energy Security Program). The Faust Capel Basins survey GA-2436/ TAN0713 was acquired by Geoscience Australia onboard the RV Tangaroa (operated by NIWA) from the 6th of October to the 22nd of November 2007. The geographic range stretched from Wellington to the Faust Capel Basins to Lord Howe Island and back to Wellington. Approximately 8,945 sailing km of multibeam bathymetry was acquired. The high resolution bathymetry data imaged seafloor features in unprecedented detail, revealing the effects of recent magmatic activity and fluid migration on the seafloor. It also produced a new image of a flat topped unexplored seamount. A member of the Lord Howe Rise seamount chain.<p><p>This dataset is not to be used for navigational purposes.

The Petrel Sub-basin Marine Environmental Survey GA-0335 was acquired by the RV Solander during May 2012 as part of the Commonwealth Government's National Low Emission Coal Initiative (NLECI). The survey was undertaken as a collaboration between Geoscience Australia and the Australian Institute of Marine Science (AIMS) . The purpose was to acquire geophysical and biophysical data on shallow (less than 100m water depth) seabed environments within two targeted areas in the Petrel Sub-basin to support investigation for CO2 storage potential in these areas.<p><p>This dataset is not to be used for navigational purposes.

The Davis Coastal Seabed Mapping Survey, Antarctica (GA-4301 / AAS2201 / HI468) was acquired by the Australian Antarctic Division workboat Howard Burton during February-March 2010 as a component of Australian Antarctic Science (AAS) Project 2201 - Natural Variability and Human Induced Change on Antarctic Nearshore Marine Benthic Communities. The survey was undertaken as a collaboration between Geoscience Australia, the Australian Antarctic Division and the Australian Hydrographic Service (Royal Australian Navy). The objectives were to provide multibeam bathymetry and backscatter of the coastal region of the Vestfold Hills around Davis Station, Antarctica, to aid the understanding of sea bed character, benthic habitats, provide a basis for hydrodynamic modelling of water movement around Davis, and to update and extend the navigational charts of the region.

A bathymetric survey of Darwin Harbour was undertaken during the period 24 June to 20 August 2011 by iXSurvey Australia Pty Ltd for the Department of Natural Resources, Environment, The Arts and Sport (NRETAS) in collaboration with Geoscience Australia (GA), the Darwin Port Corporation (DPC) and the Australian Institute of Marine Science (AIMS) using GA's Kongsberg EM3002D multibeam sonar system and DPC's vessel 'Matthew Flinders'.

Geoscience Australia carried out a marine survey on Carnarvon shelf (WA) in 2008 (SOL4769) to map seabed bathymetry and characterise benthic environments through colocated sampling of surface sediments and infauna, observation of benthic habitats using underwater towed video and stills photography, and measurement of ocean tides and wavegenerated currents. Data and samples were acquired using the Australian Institute of Marine Science (AIMS) Research Vessel Solander. Bathymetric mapping, sampling and video transects were completed in three survey areas that extended seaward from Ningaloo Reef to the shelf edge, including: Mandu Creek (80 sq km); Point Cloates (281 sq km), and; Gnaraloo (321 sq km). Additional bathymetric mapping (but no sampling or video) was completed between Mandu creek and Point Cloates, covering 277 sq km and north of Mandu Creek, covering 79 sq km. Two oceanographic moorings were deployed in the Point Cloates survey area. The survey also mapped and sampled an area to the northeast of the Muiron Islands covering 52 sq km. The dataset contains 6 bathymetry grids of the Carnarvon Shelf study area produced from the processed EM3002 bathymetry data using the CARIS HIPS and SIPS software. Please see the metadata for detailed information.<p><p>This dataset is not to be used for navigational purposes.