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  • The Approaches to Darwin, Beagle Gulf bathymetry survey was acquired for the Australian Hydrographic Office (AHO) onboard the M/V Limitless and PHS Zephyr during the period 26 June – 30 August 2020. This was a contracted survey conducted as part of the HydroScheme Industry Partnership Program (HIPP). The survey area lies North-West of Cox Peninsula, encompassing South Gutter and is bounded by North Gutter, Fenton Patches and Fish Reef. Bathymetry data was acquired using a Kongsberg R2Sonic 2026 and R2Sonic 2024 and processed using QPS Qimera V2.0.1. The dataset was then exported to GeoTIFF using CARIS HIPS and SIPS software. This dataset contains a 30m-resolution 32-bit floating point GeoTIFF file. This dataset is not to be used for navigation.

  • This resource contains a bathymetry compilation prepared by the University of Western Australia for the North West Shelf of Australia, between the Cape Range and the Dampier Peninsula. The compilation includes, by decreasing resolution: - Publicly available MBES datasets, made available by Geoscience Australia by December 2019. - Satellite derived bathymetry produced using 1000+ images acquired between January 2017 and December 2019. - Seismic derived bathymetry extracted from 100+ surveys acquired between 1981 and 2015. - SRTM topography, reprocessed by Galant et al, 2011: https://pid.geoscience.gov.au/dataset/ga/72759 - 2009 Australian Bathymetry and Topography grid: https://pid.geoscience.gov.au/dataset/ga/67703 The Seismic and Satellite derived bathymetry grids are also available as individual layers. The vertical and spatial accuracy of the datasets have been thoroughly assessed using high-resolution datasets including publicly available MBES and LADS surveys. The assessment indicates that the seismic derived bathymetry has a depth accuracy better than 1 m + 2% of the absolute water depths while the satellites derived bathymetry has a depth accuracy better than 1 m + 5% of the absolute water depths. A detailed methodology is provided in: Lebrec et al, 2021. Towards a regional high-resolution bathymetry of the North West Shelf of Australia based on Sentinel-2 satellite images, 3D seismic surveys and historical datasets. (in prep.) This dataset is published with the permission of the CEO, Geoscience Australia. AUTHOR’S NOTICE: This dataset should not be used, under any circumstances, for navigation. When used, the dataset should be referenced as follow: Lebrec, U., Paumard, V., O'Leary, M. J., and Lang, S. C.: Towards a regional high-resolution bathymetry of the North West Shelf of Australia based on Sentinel-2 satellite images, 3D seismic surveys and historical datasets, Earth Syst. Sci. Data Discuss. [preprint], https://doi.org/10.5194/essd-2021-128, in review, 2021.

  • This data set provides outlines for the maximum spatial extent of seabed geomorphic units for Australia's Exclusive Economic Zone, including the offshore island territories, but excluding Australian Antarctic Territory. Twenty-one geomorphic feature types were identified and mapped, following definitions published by the International Hydrographic Office (IHO, 2001). <b>Value: </b>The geomorphology of the seabed is used to constrained surface geology of the sea floor, important in resource exploration, marine zone management and for understanding the physical environment <b>Scope: </b>The area covered includes the seafloor within the Australian marine jurisdiction surrounding the Australian mainland and island territories of Christmas, Cocos (Keeling), Macquarie, and Norfolk Islands (Heap & Harris 2008).

  • The Backstairs Passage Bathymetry survey was acquired for the Australian Hydrographic Office (AHO) onboard the MV Ocean Dynasty during the period 12 January - 22 March 2021. This is a contracted survey conducted for the Australian Hydrographic Office by Precision Hydrographic Services as part of the Hydroscheme Industry Partnership Program (HIPP). The survey area encompases Backstairs Passage Southern Australia. Bathymetry data was acquired using a Kongsberg EM2040P and R2 Sonic 2024 systems and processed using QPS Qimera processing software. The dataset was then exported as a 30m resolution, 32 bit floating point GeoTIFF grid of the survey area. This dataset is not to be used for navigational purposes.

  • <div>The Cape Barren to Babel Island bathymetry survey was acquired for the Australian Hydrographic Office (AHO) onboard the MV Ocean Dynasty and MV Pacific Crest during the period 28 February – 06 May 2021. This was a contracted survey conducted by MMA Offshore as part of the Hydroscheme Industry Partnership Program. The survey area encompasses the Cape Barren to Babel Island, Tasmania. Bathymetry data was acquired using a Kongsberg EM2040P and processed using CARIS HIPS & SIPS processing software. The dataset was then exported as a 30m resolution, 32 bit floating point GeoTIFF grid of the survey area.</div><div>This dataset is not to be used for navigational purposes.</div>

  • <div>The Flinders Island bathymetry survey was acquired for the Australian Hydrographic Office (AHO) onboard the MV Offshore Surveyor during the period 16 December – 13 May 2022. This was a contracted survey conducted for the Australian Hydrographic Office by Guaridan Geomatis Pty Ltd as part of the Hydroscheme Industry Partnership Program. The survey area encompases an area North East of Flinders Island, Tasmania. Bathymetry data was acquired using a Kongsberg EM2040-07 MKII and processed using CARIS HIPS & SIPS processing software. The dataset was then exported as a 30m resolution, 32 bit floating point GeoTIFF grid of the survey area.</div><div>This dataset is not to be used for navigational purposes.</div>

  • <div>The Camden Sound (North-West) bathymetry survey was acquired for the Australian Hydrographic Office (AHO) onboard the MV Ocean Dynasty and MV Empress during the period 21 September 2021 – 9 Jan 2022. This was a contracted survey conducted for the Australian Hydrographic Office by MMA Offshore as part of the Hydroscheme Industry Partnership Program. The survey area encompases an area North West of Camden Sound, Western Australia. Bathymetry data was acquired using a Kongsberg EM2040P Mk II and processed using QPS Qimera V2.0.1 processing software. The dataset was then exported as a 30m resolution, 32 bit floating point GeoTIFF grid of the survey area.</div><div>This dataset is not to be used for navigational purposes.</div>

  • The AusBathyTopo 250m (Australia) 2023 Grid is a high-resolution depth model for Australia that replaces the Australian Bathymetry and Topography Grid, June 2009. This publication is the result of a collaborative partnership between Geoscience Australia, the Australian Hydrographic Office, James Cook University, and the University of Sydney. It has been compiled using 1582 unique data sources from multibeam echosounders, single-beam echosounders, LiDAR, 3D seismic first returns, Electronic Navigation Charts and satellite derived bathymetry alongside higher-resolution regional compilations. In particular, the map incorporates new innovations such as the use of earth observation data (satellite based) produced by Digital Earth Australia to improve shallow coastal depth modelling to present a seamless transition between land and sea. All source bathymetry data were extensively edited as 3D point clouds to remove noise, given a consistent WGS84 horizontal datum, and where possible, an approximate MSL vertical datum. This new continental-scale grid represents decades of data collection, analysis, investment and collaboration from Australia’s seabed mapping community and is a significant improvement on the 2009 compilation. The data extends across a vast area from 92°E to 172° E and 8°S to 60° S. This includes areas adjacent to the Australian continent and Tasmania, and surrounding Macquarie Island and the Australian Territories of Norfolk Island, Christmas Island, and Cocos (Keeling) Islands. Australia's marine jurisdiction offshore from the territory of Heard and McDonald Islands and the Australian Antarctic Territory are not included. We acknowledge the use of the CSIRO Marine National Facility (https://ror.org/01mae9353 ) in undertaking this research. The datasets used were collected by the Marine National Facility on 43 voyages (see Lineage for identification). This dataset is not to be used for navigational purposes.

  • The Wallaby-Zenith Fracture Zone Survey was acquired by the Minderoo-UWA Deep-Sea Research Centre at the University of Western Australia during the expedition “Indomitable” onboard the RV DSSV Pressure Drop from the 8th March to the 2nd June 2021 led by Dr. Alan Jamieson, using a Kongsberg EM124. The expedition was funded by a joint mission between Caladan Oceanic LLC (US) and the Minderoo Foundation (Australia). This dataset contains a 64m-resolution and a 128mm-resolution 32-bit floating point GeoTIFF files of the bathymetry in the study area, derived from the processed EM124 bathymetry data, using QPS Qimera v.2.5 software. This dataset is not to be used for navigational purposes. This dataset is published with the permission of the CEO, Geoscience Australia.

  • <div>The Norfolk Island Nearshore and Coastal Habitat Mapping was acquired by Ocean Infinity Pty Ltd onboard the M/V Offshore Solution from the 21st to the 24th July 2021, using a Kongsberg EM2040 Mark II. This survey was part of the Norfolk Island Nearshore and Coastal Habitat Mapping project in partnership with Deakin University’s Marine Mapping Group, University of Wollongong, Tellus4D Geoimaging, University of Newcastle, University of New South Wales, University of Tasmania and Geoscience Australia to obtain high resolution bathymetric grid (1m) and to define the morpho-bathymetry of the survey area based on the bathymetric grid and derived products such as slope aspect map, ruggedness map, bathymetry position index and backscatter map. This dataset contains a 1m-resolution 32-bit floating point GeoTIFF file of the bathymetry in the study area, derived from the processed EM2040 Mark II bathymetry data, using Qimera and CARIS HIPS and SIPS software. A detailed report on the survey is provided in: Ocean Infinity Pty Ltd. 2022. Report of Survey: Norfolk Island Nearshore and Coastal Habitat Mapping. Ocean Infinity Group Limited. This dataset is not to be used for navigational purposes. This dataset is published with the permission of the CEO, Geoscience Australia.</div>