RV Investigator Voyage IN2021_V02 SBP120 Sub-bottom Profiler Data

• Other Authors: CSIRO (hasAssociationWith), CSIRO O&A, Information & Data Centre (pointOfContact), CSIRO Oceans & Atmosphere - Aspendale (hasAssociationWith), CSIRO Oceans & Atmosphere - Hobart (hasAssociationWith), CSIRO Oceans & Atmosphere - IOMRC Crawley (hasAssociationWith), CSIRO Oceans & Atmosphere - St. Lucia (hasAssociationWith), Lynch, Tim (hasAssociationWith), Navidad, Cisco (pointOfContact), Vandenbossche, Phil (author), Vandenbossche, Phil (originator), Vandenbossche, Phil (processor)
• Format: Dataset
• Language: unknown
• Published: Australian Ocean Data Network
• Subjects: oceans; geoscientificInformation; Ship: Investigator (RV); Marine National Facility; Research Voyage: IN2021_V02; Earth Science | Oceans | Marine Sediments; Marine Features (Australia) | Derwent Estuary; TAS; Coastal Waters (Australia) | Tasmania Coast; Global / Oceans | Southern Ocean; Sub-bottom Profiler - SBP120; Sub-bottom structure; research vessel; 2000 Hz top-bandwidth sub-bottom penetrator and mud profiler systems; Southern Ocean
• Online Access: https://researchdata.edu.au/rv-investigator-voyage-profiler-data/1881132

Maintenance and Update Frequency: asNeeded Statement: Original field data. This record describes sub bottom profiler data collected on RV Investigator voyage IN2021_V02 (SOTS: Southern Ocean Time Series automated moorings for climate and carbon cycle studies southwest of Tasmania), which departed Hobart on the 14th April 2021 and returned to Hobart on the 28th April 2021. 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 sporadically for the extent of the voyage (i.e. during transits). Data are stored in *.raw (1190 files 4.50 GB) raw and *.seg (1190 files 4.48 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 (for depths > 200 m), and time variable gain. No attribute calculation for instantaneous amplitude was applied. Additional information regarding this dataset is contained in the GSM data acquisition and processing report. Additional data products may be available on request