RV Investigator Voyage IN2023_E03 EM122 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 (pointOfContact), GSM Support (pointOfContact), Vandenbossche, Phil (originator)
• Format: Dataset
• Language: unknown
• Published: Australian Ocean Data Network
• Subjects: oceans; geoscientificInformation; Ship: Investigator (RV); Marine National Facility; Gear Trials: IN2023_E03; Earth Science | Oceans | Bathymetry/Seafloor Topography; Coastal Waters (Australia) | Tasmania Coast; TAS; Coastal Waters (Australia) | Tasmania Coast East and Southeast; Coastal Waters (Australia); Global / Oceans | Southern Ocean; Regional Seas | Tasman Sea; Coastal Waters (Australia) | Victoria Coast; VIC; Coastal Waters (Australia) | New South Wales Coast; NSW; Multibeam Echosounder - EM122; 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/2959558

Maintenance and Update Frequency: asNeeded Statement: Original field data. Sound velocity profiles were applied to this data during data acquisition. Raw bathymetry data contained in *.all format are corrected for motion and position. Processed data were edited using CARIS version 11.4.18 with EGM2008 GPS tide applied. Credit Data collected on the Marine National Facility (MNF) RV Investigator voyage IN2023_E03. 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 RV Investigator voyage IN2023_E03, titled "Trials & Calibrations", which was segmented into 3 legs, departing Hobart on September 13 and ending in Sydney on September 30, 2023. Leg 1 (Hobart to Hobart) took place between 13-16 Sep, Leg 2 (Hobart to Hobart) between 16-25 Sep and Leg 3 (Hobart to Sydney) between 26-30 Sep. The Kongsberg EM122 multibeam echosounder was used to acquire seafloor bathymetry, backscatter and watercolumn backscatter in Storm Bay, offshore to the southeast of Tasman Peninsula and between Hobart and Sydney. The EM122 provides a 1 degree by 1 degree angular resolution. The echosounder's nominal frequency is 12 kHz. A patch test calibration was performed to determine the angular offsets of the system on September 14, 2023. Data are stored in *.all raw format for bathymetry and backscatter and *.wcd format for watercolumn backscatter at CSIRO. There are 267 files totalling 12.4 GB of raw data and 267 files totalling 15.4 GB of wcd data in this dataset. Sound velocity profiles were applied to this data during data ...