Data

IN2022_V03 Southern Ocean Bathymetry 5m - 210m Multi-resolution AusSeabed products

Commonwealth Scientific and Industrial Research Organisation
Shadwick, Elizabeth ; Scoulding, Ben ; Navidad, Cisco ; Vandenbossche, Phil ; Boyd, Matt ; 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/h2z7-m627&rft.title=IN2022_V03 Southern Ocean Bathymetry 5m - 210m Multi-resolution AusSeabed products&rft.identifier=10.25919/h2z7-m627&rft.publisher=Commonwealth Scientific and Industrial Research Organisation (CSIRO)&rft.description=This layer group describes multibeam echosounder data collected on RV Investigator voyage IN2022_V03, titled SOTS: Southern Ocean Time Series automated moorings for climate and carbon cycle studies southwest of Tasmania. The voyage took place between May 4 and May 15, 2022 departing from Hobart (TAS) and arriving in Hobart (TAS). This voyage had a primary objective to ensure the continuation of the IMAS - SOTS long-term mooring datasets for climate and carbon studies. This dataset is published with the permission of CSIRO. Not to be used for navigational purposes. The dataset contains bathymetry grids of 5m to 210m resolution of the Southern Ocean, produced from the processed EM122 and EM710 bathymetry data.Multibeam data was logged from the EM’s in Kongsberg’s proprietary *.all format and was converted to be processed within CARIS HIPS and SIPS version 11.4.7. Data were imported into the HIPS project using EM Height and the vessel file appropriate for either the EM122 or EM710. GPS tide was computed using the EGM2008 model EGM_2008_1Min_Aust_WGS84.csar. TPU values were computed using Measured Sound Velocity = 0.5 and Surface Sound Velocity = 0.2. The raw files were analysed for noise and cleaned manually. The data was 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=Shadwick, Elizabeth &rft.creator=Scoulding, Ben &rft.creator=Navidad, Cisco &rft.creator=Vandenbossche, Phil &rft.creator=Boyd, Matt &rft.creator=Taylor, Charlie &rft.creator=Plunkett, Tom &rft.date=2023&rft.edition=v2&rft.coverage=northlimit=-42.8900; southlimit=-47.0800; westlimit=140.9500; eastLimit=147.5200; uplimit=-5190.36; downlimit=-15.3037; 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=Marine geoscience&rft_subject=Geology&rft_subject=EARTH SCIENCES&rft_subject=Surveying (incl. hydrographic surveying)&rft_subject=Geomatic engineering&rft_subject=ENGINEERING&rft.type=dataset&rft.language=English Access the data
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Creative Commons Attribution
https://creativecommons.org/licenses/by/4.0/

All Rights (including copyright) CSIRO 2022.

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Data is accessible online and may be reused in accordance with licence conditions

Brief description

This layer group describes multibeam echosounder data collected on RV Investigator voyage IN2022_V03, titled "SOTS: Southern Ocean Time Series automated moorings for climate and carbon cycle studies southwest of Tasmania". The voyage took place between May 4 and May 15, 2022 departing from Hobart (TAS) and arriving in Hobart (TAS).

This voyage had a primary objective to ensure the continuation of the IMAS - SOTS long-term mooring datasets for climate and carbon studies.

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

The dataset contains bathymetry grids of 5m to 210m resolution of the Southern Ocean, produced from the processed EM122 and EM710 bathymetry data.

Lineage

Multibeam data was logged from the EM’s in Kongsberg’s proprietary *.all format and was converted to be processed within CARIS HIPS and SIPS version 11.4.7. Data were imported into the HIPS project using EM Height and the vessel file appropriate for either the EM122 or EM710. GPS tide was computed using the EGM2008 model EGM_2008_1Min_Aust_WGS84.csar. TPU values were computed using Measured Sound Velocity = 0.5 and Surface Sound Velocity = 0.2. The raw files were analysed for noise and cleaned manually. The data was 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: 2022-05-04 to 2022-05-15

This dataset is part of a larger collection

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147.52,-42.89 147.52,-47.08 140.95,-47.08 140.95,-42.89 147.52,-42.89

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

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