RV Investigator Voyage IN2018_V04 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 (AR), Hobart (processor), Heaney, Bernadette (originator)
• Format: Dataset
• Language: unknown
• Published: Australian Ocean Data Network
• Subjects: oceans; geoscientificInformation; Ship: Investigator (RV); Marine National Facility; Research Voyage: IN2018_V04; Earth Science | Oceans | Marine Sediments; Coastal Waters (Australia) | New South Wales Coast; NSW; Coastal Waters (Australia) | Tasmania Coast East and Southeast; TAS; Global / Oceans | Southern Ocean; Marine Features (Australia) | East Australian Current; Coastal Waters (Australia) | Victoria Coast; VIC; Sub-bottom Profiler - SBP120; Sub-bottom structure; 2000 Hz top-bandwidth sub-bottom penetrator and mud profiler systems; research vessel; Southern Ocean; Kongsberg
• Online Access: https://researchdata.edu.au/rv-investigator-voyage-profiler-data/1356966

Progress Code: completed Maintenance and Update Frequency: asNeeded Statement: Original field data. This record describes sub bottom profiler data collected on RV Investigator voyage, IN2018_V04, 'Constraining external iron inputs and cycling in the southern extension of the East Australian Current' which departed Hobart on the 11 September 2018 and returned to Hobart on the 8 October 2018. 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 for the extent of the voyage. Data are stored in *.raw (150 files 6.2 GB) raw and *.seg (145 files 6.03 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