RV Investigator Voyage IN2023_V04 EM710 Multibeam Echosounder Data

• Other Authors: CSIRO (hasAssociationWith), CSIRO NCMI (hasAssociationWith), CSIRO O&A, Information & Data Centre (pointOfContact), CSIRO Oceans & Atmosphere - Hobart (hasAssociationWith), Data Officer (CN), Hobart (processor), GSM Data Request (custodian), GSM Support (pointOfContact), Yule, Chris (originator)
• Format: Dataset
• Language: unknown
• Published: Australian Ocean Data Network
• Subjects: oceans; geoscientificInformation; Ship: Investigator (RV); Marine National Facility; Research Voyage: IN2023_V04; Earth Science | Oceans | Bathymetry/Seafloor Topography; Global / Oceans | Southern Ocean; States; Territories (Australia) | Tasmania; Multibeam Echosounder - EM710; Sea-floor depth below surface of the water body; Sea-floor surface hardness; Density of the water body; research vessel; multi-beam echosounders; Southern Ocean
• Online Access: https://researchdata.edu.au/rv-investigator-voyage-echosounder-data/2959444

Maintenance and Update Frequency: asNeeded Statement: Original field data. Processed data are SV corrected, tide not corrected and edited using CARIS version 11.4.2 Credit "Data collected on the Marine National Facility (MNF) RV Investigator voyage IN2023_V04.","The MNF must be acknowledged in all outputs derived from Data and/or Samples collected by, or with support from, the MNF. Acknowledge the MNF in outputs with the statement: “We acknowledge the use of the CSIRO Marine National Facility (https://ror.org/01mae9353 ) in undertaking this research.” Acknowledgment and citations should be in all forms of publication including presentations (where the acknowledgement should be on the closing slide), journals, books, reports and related research outputs." This record describes multibeam echosounder data collected on the RV Investigator voyage IN2023_V04, International nutrient inter-comparison Voyage (INIV) which departed Hobart on the 05/06/23 and returned to Hobart on the 18/06/23. The Kongsberg EM710 multibeam echosounder was used to acquire seafloor bathymetry and backscatter information and watercolumn backscatter in the Southern Ocean Southwest of Hobart. The EM710 provides a 0.5° by 1° transmit and receive angular resolution respectively. The echosounder's nominal frequency range is from 70 to 100 kHz. Data are stored in *.all raw format for bathymetry and backscatter and *.wcd format for watercolumn backscatter at CSIRO. There are 110 files totalling 90.3 GB of raw data in this dataset. Sound velocity profiles were applied to this data during data acquisition. Bathymetry data contained in *.all format is corrected for motion and position. Tide corrections [were/were not] applied to the processed data. Processed data had outliers removed. Processed line data are available in *.gsf and ascii format, and processed bathymetry and backscatter grids in geotiff format. Additional information regarding this dataset, including further information on processing streams, is contained in the GSM data ...