Data

IN2017_V03 Australian Eastern Continental Margin Bathymetry 10m - 210m Multi-resolution AusSeabed products

Commonwealth Scientific and Industrial Research Organisation
O' Hara, Tim ; Nau, Amy ; Heaney, Bernadette ; Boyd, Matt ; Navidad, Cisco ; Taylor, Charlie ; Plunkett, Tom
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.25919/k8a2-4x07&rft.title=IN2017_V03 Australian Eastern Continental Margin Bathymetry 10m - 210m Multi-resolution AusSeabed products&rft.identifier=10.25919/k8a2-4x07&rft.publisher=Commonwealth Scientific and Industrial Research Organisation (CSIRO)&rft.description=This layer group describes multibeam echosounder data collected on RV Investigator voyage IN2017_V03 titled Sampling the abyss: latitudinal biodiversity patterns along the base of Australia’s eastern continental margin. The voyage took place between May 15 and June 16, 2017, departing from Hobart (TAS) and arriving in Brisbane (QLD). The purpose of this voyage was to sample the biodiversity of lower bathyal (2500 m) and abyssal (4000 m) seafloor habitats off south-eastern Australia, and in particular deep-water ecosystems of seven Commonwealth marine reserves. This dataset is published with the permission of CSIRO. Not to be used for navigational purposes. The dataset contains bathymetry grids of 10m to 210m resolution of the GeographicLocation produced from the processed EM122 and EM710 bathymetry data.Multibeam data was logged from the EMs in Kongsberg’s proprietary *.all format and was converted to be processed within Caris HIPS and SIPS version 9.1.2. The project was set up using a World Mercator projection. Once the raw files were converted into the HIPS and SIPS format the data was analysed for noise. Zerotide was applied, and the lines were merged using the vessel file appropriate for either the EM122 or EM710. The data was then gridded at multiple resolutions in python Caris batch script using a Depth filter Vs Resolution guideline derived from AusSeabed Multibeam guidelines v2 and further inspected for outliers. Final raster products are available in L3 folder of this collection. Final processed data were also exported per line as GSF and ASCII format and available in the L2 folder of this collection.&rft.creator=O'Hara, Tim &rft.creator=Nau, Amy &rft.creator=Heaney, Bernadette &rft.creator=Boyd, Matt &rft.creator=Navidad, Cisco &rft.creator=Taylor, Charlie &rft.creator=Plunkett, Tom &rft.date=2023&rft.edition=v2&rft.coverage=northlimit=-24.0000; southlimit=-42.0000; westlimit=147.0000; eastLimit=155.0000; uplimit=-4971.955566; downlimit=-25.216154; projection=WGS84&rft_rights=All Rights (including copyright) CSIRO 2022.&rft_rights=Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/&rft_subject=AusSeabed&rft_subject=MNF&rft_subject=CSIRO&rft_subject=Surveying (incl. hydrographic surveying)&rft_subject=Geomatic engineering&rft_subject=ENGINEERING&rft_subject=Marine geoscience&rft_subject=Geology&rft_subject=EARTH SCIENCES&rft.type=dataset&rft.language=English Access the data
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All Rights (including copyright) CSIRO 2022.

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Brief description

This layer group describes multibeam echosounder data collected on RV Investigator voyage IN2017_V03 titled "Sampling the abyss: latitudinal biodiversity patterns along the base of Australia’s eastern continental margin". The voyage took place between May 15 and June 16, 2017, departing from Hobart (TAS) and arriving in Brisbane (QLD).

The purpose of this voyage was to sample the biodiversity of lower bathyal (2500 m) and abyssal (4000 m) seafloor habitats off south-eastern Australia, and in particular deep-water ecosystems of seven Commonwealth marine reserves.

This dataset is published with the permission of CSIRO. Not to be used for navigational purposes.

The dataset contains bathymetry grids of 10m to 210m resolution of the GeographicLocation produced from the processed EM122 and EM710 bathymetry data.

Lineage

Multibeam data was logged from the EMs in Kongsberg’s proprietary *.all format and was converted to be processed within Caris HIPS and SIPS version 9.1.2. The project was set up using a World Mercator projection. Once the raw files were converted into the HIPS and SIPS format the data was analysed for noise. Zerotide was applied, and the lines were merged using the vessel file appropriate for either the EM122 or EM710.

The data was then gridded at multiple resolutions in python Caris batch script using a Depth filter Vs Resolution guideline derived from AusSeabed Multibeam guidelines v2 and further inspected for outliers. Final raster products are available in L3 folder of this collection. Final processed data were also exported per line as GSF and ASCII format and available in the L2 folder of this collection.

Data time period: 2017-05-15 to 2017-06-16

This dataset is part of a larger collection

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Subjects
AusSeabed | CSIRO | Earth Sciences | Engineering | Geology | Geomatic Engineering | MNF | Marine Geoscience | Surveying (Incl. Hydrographic Surveying) |

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