IN2019_V02 Southern Ocean Time Series Bathymetry 10m - 210m Multi-resolution AusSeabed products

• Format: Dataset
• Language: unknown
• Published: Commonwealth Scientific and Industrial Research Organisation
• Subjects: AusSeabed; MNF; CSIRO; Marine geoscience; Geology; EARTH SCIENCES; Surveying (incl. hydrographic surveying); Geomatic engineering; ENGINEERING; Southern Ocean
• Online Access: https://doi.org/10.25919/bjcp-b427; https://researchdata.edu.au/in2019v02-southern-ocean-ausseabed-products/2592981; https://data.csiro.au/collection/csiro:58925; http://hdl.handle.net/102.100.100/485901?index=1

This layer group describes multibeam echosounder data collected on RV Investigator voyage IN2019_V02, titled 'SOTS: Southern Ocean Time Series automated moorings for climate and carbon cycle studies southwest of Tasmania; Subantarctic Biogeochemistry of Carbon and Iron, Southern Ocean Time Series site', which departed Hobart on the 14 March 2019 and returned to Hobart on the 5 April 2019. \n\nThis voyage had a primary objective to ensure the continuation of the IMAS - SOTS long-term mooring datasets for climate and carbon studies.\n\nThis dataset is published with the permission of CSIRO. Not to be used for navigational purposes.\n\nThe dataset contains bathymetry grids of 10m to 210m resolution of the Southern Ocean, produced from the processed EM122 and EM710 bathymetry data.\n\n\nLineage: 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 and the vessel file appropriate for either the EM122 or EM710. 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.