<div>AusSeabed follows the recommended processing methodology as prescribed by the AusSeabed Multibeam Guidelines. Please note that certain products are subject to routine update (e.g. resolution, coverage, temporal variation, guidelines/best practice). The client is advised to refer to the latest version of all documents and products for the most up-to-date material. For eCat records the version is expressed in the record title whilst products incorporate date of production as per AusSeabed’s file naming convention.</div><div>This surface is a 30 metre Shoal Depth True Position (SDTP) surface derived from International Hydrographic Organisation (IHO) Order 1A, 1 and 2 metre Combined Uncertainty and Bathymetry Estimator (CUBE) surfaces supplied to the Australian Hydrographic Office (AHO), with depth, position, density and uncertainty preserved from the original surface.</div><div>Full resolution surfaces available from AHO on request under restricted licence.</div><div><br></div><div>Survey metadata: aho_id: 38620555</div><div>version: 1</div><div>name: SI 1035 Cape Barren to Babel Island, TAS</div><div>nb-of-points: 1075</div><div>north: -39.8601356</div><div>south: -40.3775652</div><div>east: 148.9095026</div><div>west: 148.3209264</div><div>boundingbox-crs: EPSG:4326</div><div>start-date: 28-Feb-21</div><div>end-date: 06-May-21</div><div>survey area: Cape Barren to Babel Island, TAS</div><div>platform class: Ship</div><div>vessel: MV Ocean Dynasty</div><div>vessel: MV Pacific Crest</div><div>surveyor: Richard Cullen</div><div>external-reference: SI 1035</div><div>classification: Unclassified</div><div>abstract: This is a contracted survey conducted for the Australian Hydrographic Office by MMA Offshore as part of the Hydroscheme Industry Partnership Program. The survey area encompases Cape Barren to Babel Island TAS, with a depth range from 7.2m to 635m, and mean depth of 76m.&nbsp;</div><div>Lineage (Description): This surface is a 30 metre Shoal Depth True Position (SDTP) surface derived from International Hydrographic Organisation (IHO) Order 1A, 1, 2, 4, 8 and 16 metre Combined Uncertainty and Bathymetry Estimator (CUBE) surfaces, and IHO Order 1B, 8 and 16 metre CUBE surfaces supplied to the Australian Hydrographic Office (AHO), with depth, position, density and uncertainty preserved from the original surfaces.&nbsp;&nbsp;</div><div>Values for uncertainty and sonar properties have been provided for 100m depth, this being representative for the full data set.</div><div>Full resolution surfaces available from AHO on request under restricted licence.</div><div>data-owner: Australian Hydrographic Office, Commonwealth of Australia</div><div>custodian: Geoscience Australia, Commonwealth of Australia</div><div>point-of-contact: hydro.licensing@defence.gov.au</div><div>legal-constraints: Creative Commons CC BY 4.0</div><div>geodetic-datum: EPSG:4326</div><div>projection: Latitude/Longitude (WGS 84)</div><div>vertical-datum: Mean Sea Level (MSL)</div><div>instrument-type: Multibeam Echosounder (MBES)</div><div>sensor-type: Kongsberg EM2040P</div><div>sensor-frequency: 300 kHz</div><div>horizontal-positioning-method: iXBlue ROVINS with Veripos LD8 receiver and Veripos APEX PPP</div><div>vertical-reduction-method: Reduced to LAT using an AHO approved tidal model based on observed tides. Final adjustment to MSL by AHO</div><div>accepted-soundings-accuracy (unit(m)): 0.59m @ 100m depth </div><div>accepted-positional-accuracy (unit(m)): 0.77m @ 100m depth</div><div>accepted-survey-order: Order 1A/1B</div><div>accepted-survey-order-url: hydro.licensing@defence.gov <div>AusSeabed follows the recommended processing methodology as prescribed by the AusSeabed Multibeam Guidelines. Please note that certain products are subject to routine update (e.g. resolution, coverage, temporal variation, guidelines/best practice). The client is advised to refer to the latest version of all documents and products for the most up-to-date material. For eCat records the version is expressed in the record title whilst products incorporate date of production as per AusSeabed’s file naming convention.</div><div>This surface is a 30 metre Shoal Depth True Position (SDTP) surface derived from International Hydrographic Organisation (IHO) Order 1A, 1 and 2 metre Combined Uncertainty and Bathymetry Estimator (CUBE) surfaces supplied to the Australian Hydrographic Office (AHO), with depth, position, density and uncertainty preserved from the original surface.</div><div>Full resolution surfaces available from AHO on request under restricted licence.</div><div><br></div><div>Survey metadata: aho_id: 38620555</div><div>version: 1</div><div>name: SI 1035 Cape Barren to Babel Island, TAS</div><div>nb-of-points: 1075</div><div>north: -39.8601356</div><div>south: -40.3775652</div><div>east: 148.9095026</div><div>west: 148.3209264</div><div>boundingbox-crs: EPSG:4326</div><div>start-date: 28-Feb-21</div><div>end-date: 06-May-21</div><div>survey area: Cape Barren to Babel Island, TAS</div><div>platform class: Ship</div><div>vessel: MV Ocean Dynasty</div><div>vessel: MV Pacific Crest</div><div>surveyor: Richard Cullen</div><div>external-reference: SI 1035</div><div>classification: Unclassified</div><div>abstract: This is a contracted survey conducted for the Australian Hydrographic Office by MMA Offshore as part of the Hydroscheme Industry Partnership Program. The survey area encompases Cape Barren to Babel Island TAS, with a depth range from 7.2m to 635m, and mean depth of 76m.&nbsp;</div><div>Lineage (Description): This surface is a 30 metre Shoal Depth True Position (SDTP) surface derived from International Hydrographic Organisation (IHO) Order 1A, 1, 2, 4, 8 and 16 metre Combined Uncertainty and Bathymetry Estimator (CUBE) surfaces, and IHO Order 1B, 8 and 16 metre CUBE surfaces supplied to the Australian Hydrographic Office (AHO), with depth, position, density and uncertainty preserved from the original surfaces.&nbsp;&nbsp;</div><div>Values for uncertainty and sonar properties have been provided for 100m depth, this being representative for the full data set.</div><div>Full resolution surfaces available from AHO on request under restricted licence.</div><div>data-owner: Australian Hydrographic Office, Commonwealth of Australia</div><div>custodian: Geoscience Australia, Commonwealth of Australia</div><div>point-of-contact: hydro.licensing@defence.gov.au</div><div>legal-constraints: Creative Commons CC BY 4.0</div><div>geodetic-datum: EPSG:4326</div><div>projection: Latitude/Longitude (WGS 84)</div><div>vertical-datum: Mean Sea Level (MSL)</div><div>instrument-type: Multibeam Echosounder (MBES)</div><div>sensor-type: Kongsberg EM2040P</div><div>sensor-frequency: 300 kHz</div><div>horizontal-positioning-method: iXBlue ROVINS with Veripos LD8 receiver and Veripos APEX PPP</div><div>vertical-reduction-method: Reduced to LAT using an AHO approved tidal model based on observed tides. Final adjustment to MSL by AHO</div><div>accepted-soundings-accuracy (unit(m)): 0.59m @ 100m depth </div><div>accepted-positional-accuracy (unit(m)): 0.77m @ 100m depth</div><div>accepted-survey-order: Order 1A/1B</div><div>accepted-survey-order-url: https://iho.int&nbsp;› pubs › S-44_Edition_6.0.0_EN.pdf</div><div>usage-limitation: Not to be used for Navigation</div><div>derived-from-asset-id: 38620125</div><div>contact-address: 8 Station St, Wollongong, NSW, Australia 2500</div><div>GCMD-keyword: EARTH SCIENCE>OCEANS>BATHYMETRY/SEAFLOOR TOPOGRAPHY</div><div>GA-keyword: AusSeabed, Bathymetry, Marine, Bathymetry Grids</div><div>name of survey contractor: MMA Offshore</div><div>statement_of_requirements: HIPP SOR 2020 v1.2</div><div>year of installation: 2021</div><div>number of sensor heads: 1</div><div>number of soundings: 512 per ping</div><div>beamwidth along track (degree): 1.3°</div><div>beamwidth across track (degree): 1.3°</div><div>pulse length (μs): 108</div><div>absorption (dB/km): N/A</div><div>selectable depth range (m): max 600</div><div>vessel speed (kt): 7</div><div>start location: Hobart, TAS</div><div>end location: Hobart, TAS</div><div>sensor operating mode: Ultra High Density Equidistant&nbsp;</div><div>sensor swath (degrees): 170</div><div>grid sounding density: 95% of nodes >5 soundings per node at survey resolution</div><div>processing software: CARIS HIPS & SIPS</div><div>processing methodology: Processed in accordance with HIPP SOR 2022.3 using CUBE techniques, 1, 2, 4, 8 and 16m CUBE surfaces generated as the final L3 dataset.</div><div>grid resolution (m): 30</div><div>number of grids: 1</div><div><br></div><div><br></div><div>Processing methodology:</div><div>This dataset was produced using CARIS HIPS & SIPS as follow:</div><div>1. Processed in accordance with HIPP SOR 2020v 1.2 using CUBE techniques, 1m and 2m CUBE surfaces generated as the final L3 product (a gridded surface derived from cleaned point data).</div><div>2. Data was provided to Geoscience Australia for publication.</div><div>3. The final processed grid was exported as a 32-bit floating point Geotiff at 30 m resolution, referenced to MSL, WGS 84 (EPSG:4326).</div><div><br></div><div>DATA QUALITY</div><div><br></div><div>This dataset has been subject to independent post-production validation and testing. Tests have been performed for data completeness, correct spatial representation, attribute accuracy, logical consistency, metadata completeness and correctness, and where appropriate for compliance with Geoscience Australia's data dictionaries.</div><div>Errors found in this dataset should be reported to:</div><div>Corporate Data Manager</div><div>Geoscience Australia</div><div>GPO Box 378</div><div>Canberra ACT 2601, Australia</div><div>Email: Sales@ga.gov.au</div><div>Reported Errors will be rectified in subsequent data releases, if any.</div> Sales@ga.gov pubs › S-44_Edition_6.0.0_EN.pdf</div><div>usage-limitation: Not to be used for Navigation</div><div>derived-from-asset-id: 38620125</div><div>contact-address: 8 Station St, Wollongong, NSW, Australia 2500</div><div>GCMD-keyword: EARTH SCIENCE>OCEANS>BATHYMETRY/SEAFLOOR TOPOGRAPHY</div><div>GA-keyword: AusSeabed, Bathymetry, Marine, Bathymetry Grids</div><div>name of survey contractor: MMA Offshore</div><div>statement_of_requirements: HIPP SOR 2020 v1.2</div><div>year of installation: 2021</div><div>number of sensor heads: 1</div><div>number of soundings: 512 per ping</div><div>beamwidth along track (degree): 1.3°</div><div>beamwidth across track (degree): 1.3°</div><div>pulse length (μs): 108</div><div>absorption (dB/km): N/A</div><div>selectable depth range (m): max 600</div><div>vessel speed (kt): 7</div><div>start location: Hobart, TAS</div><div>end location: Hobart, TAS</div><div>sensor operating mode: Ultra High Density Equidistant&nbsp;</div><div>sensor swath (degrees): 170</div><div>grid sounding density: 95% of nodes >5 soundings per node at survey resolution</div><div>processing software: CARIS HIPS & SIPS</div><div>processing methodology: Processed in accordance with HIPP SOR 2022.3 using CUBE techniques, 1, 2, 4, 8 and 16m CUBE surfaces generated as the final L3 dataset.</div><div>grid resolution (m): 30</div><div>number of grids: 1</div><div><br></div><div><br></div><div>Processing methodology:</div><div>This dataset was produced using CARIS HIPS & SIPS as follow:</div><div>1. Processed in accordance with HIPP SOR 2020v 1.2 using CUBE techniques, 1m and 2m CUBE surfaces generated as the final L3 product (a gridded surface derived from cleaned point data).</div><div>2. Data was provided to Geoscience Australia for publication.</div><div>3. The final processed grid was exported as a 32-bit floating point Geotiff at 30 m resolution, referenced to MSL, WGS 84 (EPSG:4326).</div><div><br></div><div>DATA QUALITY</div><div><br></div><div>This dataset has been subject to independent post-production validation and testing. Tests have been performed for data completeness, correct spatial representation, attribute accuracy, logical consistency, metadata completeness and correctness, and where appropriate for compliance with Geoscience Australia's data dictionaries.</div><div>Errors found in this dataset should be reported to:</div><div>Corporate Data Manager</div><div>Geoscience Australia</div><div>GPO Box 378</div><div>Canberra ACT 2601, Australia</div><div>Email: Sales@ga.gov.au</div><div>Reported Errors will be rectified in subsequent data releases, if any.</div>