RV Investigator Voyage IN2020_V01 SBP120 Sub-bottom Profiler Data

• Other Authors: CSIRO (hasAssociationWith), CSIRO O&A, Information & Data Centre (pointOfContact), CSIRO Oceans & Atmosphere - Hobart (hasAssociationWith), CSIRO/Oceans and Atmosphere (hasAssociationWith), Data Officer (DW), Hobart (processor), Kuna, Nelson (originator)
• Format: Dataset
• Language: unknown
• Published: Australian Ocean Data Network
• Subjects: oceans; geoscientificInformation; Ship: Investigator (RV); Marine National Facility; Research Voyage: IN2020_V01; Earth Science | Oceans | Marine Sediments; Earth Science | Oceans | Marine Geophysics; Global / Oceans | Indian Ocean; Offshore Islands (Australia) | Heard & McDonald Islands; Marine Planning Regions (Australia) | Kerguelen; Global / Oceans | Southern Ocean/ Australia extension; Marine Planning Regions (Australia) | South-west; Marine Features (Australia) | Australian EEZ; Coastal Waters (Australia) | West Australia Coast; WA; Sub-bottom Profiler - SBP120; Sub-bottom structure; 2000 Hz top-bandwidth sub-bottom penetrator and mud profiler systems; research vessel; Heard; Indian; Kerguelen; Kongsberg; McDonald Islands; Southern Ocean
• Online Access: https://researchdata.edu.au/rv-investigator-voyage-profiler-data/1881360

Progress Code: completed Maintenance and Update Frequency: asNeeded Statement: Original field data. This record describes sub bottom profiler data collected from the Marine National Facility (MNF) RV Investigator Voyage IN2020_V01, titled: “Development of William’s Ridge, Kerguelen Plateau: tectonics, hotspot magmatism, microcontinents, and Australia’s Extended Continental Shelf” between January 08 and March 06, 2020 departing from Henderson (WA) and returning back to Fremantle (WA). The Kongsberg SBP120 (sub bottom profiler) was used to acquire data containing the specular reflections at different sediment interfaces below the seafloor. The SBP120 provides a 3° by 3° angular resolution. The echosounder's frequency sweep range is from 2.5 to 7 kHz. The SBP120 was logged continuously for the extent of the voyage. Data are stored in *.raw (972 files 17.7 GB) raw and *.seg (996 files 18.2 GB) segy formats at CSIRO. The segy format data had a real time processing stream applied, which applies gain, a gain correction, matched filter with replica shaping, an attribute calculation for instantaneous amplitude and time variable gain. Additional information regarding this dataset is contained in the GSM data acquisition and processing report. Additional data products may be available on request