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.

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 Mentelle Basin survey GA-0293, SS08/2005 was acquired by Geoscience Australia onboard the RV Southern Surveyor from the 28th of September to the 19th of October 2005. This deep water rift basin (up to 4500m depth) is located offshore from Fremantle on the SW Australian margin. The objectives of the survey was to study deep water marine habitats and to assess the petroleum potential of the Mentelle Basin. The swath data collected covered a new area of seabed that revealed the extents of the blind submarine canyons and completed the coverage of the Perth Canyon and filled the remaining gaps with high resolution swath bathymetry data.<p><p>This dataset is not to be used for navigational purposes.

The EM300 Sea Trials survey GA-2354, was acquired by Geoscience Australia after the installation of the new multibeam bathymetry acquisition system EM300 onboard the RV Southern Survey during the 16 to 18th of December 2003. The survey location was offshore Fremantle around the Perth Canyon. The aim of the survey was to test the bathymetry system installed on the vessel. The bathymetry grids consists of 10 and 40m resolution grids projected in Easting and Northing WGS84 UTM 50S.<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.

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'.

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.

The Casey Station Bathymetry Survey was conducted last summer from December 2014 to February 2015. This collaborative survey was undertaken by Geoscience Australia, the Royal Australian Navy and the Australian Antarctic Division, using the AAD's workboat the RV Howard Burton. The survey goal was to acquire high resolution bathymetry data to improve our understanding of the seafloor using multibeam sonar. The bathymetry data collection will be supplemented by physical sampling of the seafloor sediments and video recordings of the biological communities living in the seafloor. The survey will cover areas that haven't been charted during the 2013 Casey Survey and are frequently used by the RSV Aurora Australis. Improving our understanding of the seabed environment in these shallow coastal waters will ultimately lead to a better environmental management of the Australian Antarctic Territory. The data will also help the RAN to develop more accurate navigation charts therefore reducing the risk to maritime operation in the region.

<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.

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.