Data

AusBathyTopo (Australia) 250m 2023 - A regional-scale depth model (20230004C)

Geoscience Australia
Beaman, R.
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://pid.geoscience.gov.au/dataset/ga/148758&rft.title=AusBathyTopo (Australia) 250m 2023 - A regional-scale depth model (20230004C)&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/148758&rft.publisher=Commonwealth of Australia (Geoscience Australia)&rft.description=This record was superseded on 5/12/2024 with approval from the Director, National Seabed Mapping as it has been superseded by eCat 150050 The AusBathyTopo 250m (Australia) 2023 Grid is a high-resolution depth model for Australia that replaces the Australian Bathymetry and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.Maintenance and Update Frequency: asNeededStatement: This dataset is a high-resolution depth model for Australia that replaces the previous grid, June 2009. It has been compiled from a wide range of data sources of varying resolution and accuracy. 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 before being decimated, concatenated and then merged with SRTM land grid to create the final product. Please see the Processing_scheme_aus250.jpg in the download section for more information on methodology.AUSTRALIAN HYDROGRAPHIC OFFICE NOTICE: Not to be used for navigation. This aus250 DEM product incorporates source bathymetry data reproduced under licence by permission of the Australian Hydrographic Office © Commonwealth of Australia 2009-2023.GEOSCIENCE AUSTRALIA NOTICE: This aus250 DEM product incorporates data which are © Commonwealth of Australia (Geoscience Australia). The Commonwealth gives no warranty regarding the data's accuracy, completeness, currency or suitability for any particular purpose. CSIRO ACKNOWLEDGEMENT: 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 the following 43 voyages: • Bioview; • IN2015_C01; IN2015_T01; IN2015_T02; IN2016_E02; IN2016_T02; IN2016_T02; IN2016_V06; IN2016_V06; IN2017_C01; IN2017_T01; IN2017_T01; IN2017_V03; IN2017_V03; IN2018_T01; IN2018_V03; IN2018_V04; IN2019_E01; IN2019_E01; IN2019_T02; IN2019_T02; IN2019_V04; IN2019_V04; IN2019_V05; IN2021_T01; IN2021_T01; IN2022_T01; IN2022_T01; • SS032010; SS052007; SS052012; SS062008; SS2007_T04; SS2007_T06; SS2008_T02; SS2008_V09; SS2009_T02; SS2012_T01; SS2012_V01; SS2013_T04 • SST062012; • TM2012_V01; TM2014_V01 Please see the Datasources_aus240_DEM_V1_public.csv sheet in the downloads section for more information on contributing surveys noting that much of the data for this project came from the AHO and will not be individually identified.Going forward it is intended that this resource will be updated intermittently when resources allow and as new foundational data becomes available.&rft.creator=Beaman, R. &rft.date=2023&rft.coverage=westlimit=92; southlimit=-60; eastlimit=172; northlimit=-8; projection=WGS 84 / geographic 2D (EPSG: 4326)&rft.coverage=westlimit=92; southlimit=-60; eastlimit=172; northlimit=-8; projection=WGS 84 / geographic 2D (EPSG: 4326)&rft.coverage=uplimit=3989; downlimit=-8565; projection=MSL depth / vertical (EPSG: 5715)&rft.coverage=uplimit=3989; downlimit=-8565; projection=MSL depth / vertical (EPSG: 5715)&rft_rights=Any&rft_rights=Any&rft_rights=© Commonwealth of Australia (Geoscience Australia) 2023&rft_rights=Australian Government Security Classification System&rft_rights=https://www.protectivesecurity.gov.au/Pages/default.aspx&rft_rights=WWW:LINK-1.0-http--link&rft_rights=Australian Government Security Classification System&rft_subject=geoscientificInformation&rft_subject=bathymetry&rft_subject=multibeam&rft_subject=bathymetric grids&rft_subject=AusSeabed&rft_subject=HVC_146413&rft_subject=Oceans&rft_subject=Published_External&rft_subject=Compilation&rft_subject=Multibeam&rft_subject=Singlebeam&rft_subject=LiDAR&rft_subject=SeisDB&rft_subject=Satellite-derived Bathymetry&rft_subject=Chart-derived&rft_subject=EARTH SCIENCES&rft_subject=Continental Shelf&rft_subject=DEM&rft_subject=SRTM&rft_subject=Lidar Bathymetry&rft_subject=Earth Science | Oceans | Bathymetry/Seafloor Topography | Bathymetry&rft_subject=Marine&rft.type=dataset&rft.language=English Access the data
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Brief description

This record was superseded on 5/12/2024 with approval from the Director, National Seabed Mapping as it has been superseded by eCat 150050 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.

Lineage

Maintenance and Update Frequency: asNeeded
Statement:
This dataset is a high-resolution depth model for Australia that replaces the previous grid, June 2009. It has been compiled from a wide range of data sources of varying resolution and accuracy. 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 before being decimated, concatenated and then merged with SRTM land grid to create the final product. Please see the Processing_scheme_aus250.jpg in the download section for more information on methodology.

AUSTRALIAN HYDROGRAPHIC OFFICE NOTICE: Not to be used for navigation. This aus250 DEM product incorporates source bathymetry data reproduced under licence by permission of the Australian Hydrographic Office © Commonwealth of Australia 2009-2023.

GEOSCIENCE AUSTRALIA NOTICE: This aus250 DEM product incorporates data which are © Commonwealth of Australia (Geoscience Australia). The Commonwealth gives no warranty regarding the data's accuracy, completeness, currency or suitability for any particular purpose.

CSIRO ACKNOWLEDGEMENT: 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 the following 43 voyages:
• Bioview;
• IN2015_C01; IN2015_T01; IN2015_T02; IN2016_E02; IN2016_T02; IN2016_T02; IN2016_V06; IN2016_V06; IN2017_C01; IN2017_T01; IN2017_T01; IN2017_V03; IN2017_V03; IN2018_T01; IN2018_V03; IN2018_V04; IN2019_E01; IN2019_E01; IN2019_T02; IN2019_T02; IN2019_V04; IN2019_V04; IN2019_V05; IN2021_T01; IN2021_T01; IN2022_T01; IN2022_T01;
• SS032010; SS052007; SS052012; SS062008; SS2007_T04; SS2007_T06; SS2008_T02; SS2008_V09; SS2009_T02; SS2012_T01; SS2012_V01; SS2013_T04
• SST062012;
• TM2012_V01; TM2014_V01

Please see the Datasources_aus240_DEM_V1_public.csv sheet in the downloads section for more information on contributing surveys noting that much of the data for this project came from the AHO and will not be individually identified.

Going forward it is intended that this resource will be updated intermittently when resources allow and as new foundational data becomes available.

Notes

Purpose
This project aimed to develop a new national-scale high-resolution digital elevation model (DEM) for the Australian region at a grid pixel resolution of 0.0025-arc degree (about 250 m). A high-resolution DEM is a critical spatial dataset used to assist policy making, such as informing depth information for wind farm development. In addition, a new grid is required to improve the geomorphic detail about the location and spatial extent of seabed features for the Australian shelf and adjacent continental slopes. The new grid utilised the latest data sourced from ship-based multibeam and singlebeam echo sounder surveys, ENC tile spot depths, airborne LiDAR bathymetry surveys, satellite derived bathymetry data, coastline and near surface feature data.

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172,-8 172,-60 92,-60 92,-8 172,-8

132,-34

text: westlimit=92; southlimit=-60; eastlimit=172; northlimit=-8; projection=WGS 84 / geographic 2D (EPSG: 4326)

text: uplimit=3989; downlimit=-8565; projection=MSL depth / vertical (EPSG: 5715)

Subjects
AusSeabed | Chart-derived | Compilation | Continental Shelf | DEM | EARTH SCIENCES | Earth Science | Oceans | Bathymetry/Seafloor Topography | Bathymetry | HVC_146413 | LiDAR | Lidar Bathymetry | Marine | Multibeam | Oceans | Published_External | SRTM | Satellite-derived Bathymetry | SeisDB | Singlebeam | bathymetric grids | bathymetry | geoscientificInformation | multibeam |

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Other Information
Australian Bathymetry and Topography 2023 250m (zip) [2.6 GB]

uri : https://files.ausseabed.gov.au/survey/Australian%20Bathymetry%20and%20Topography%202023%20250m.zip

Related Record: Australia's Seabed Map 2023

doi : https://dx.doi.org/10.26186/148890

Supersedes eCat 67703

uri : https://pid.geoscience.gov.au/dataset/ga/67703

Superseded by eCat 150050

uri : https://pid.geoscience.gov.au/dataset/ga/150050

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