RV Investigator Voyage IN2021_V01 SBP120 Sub-bottom Profiler Data

• Other Authors: Berry, Chris (originator), 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)
• Format: Dataset
• Language: unknown
• Published: Australian Ocean Data Network
• Subjects: oceans; geoscientificInformation; Ship: Investigator (RV); Marine National Facility; Research Voyage: IN2021_V01; Earth Science | Oceans | Marine Sediments; Marine Features (Australia) | Derwent Estuary; TAS; Coastal Waters (Australia) | Tasmania Coast East and Southeast; Coastal Waters (Australia) | New South Wales Coast; NSW; Sub-bottom Profiler - SBP120; Sub-bottom structure; research vessel; 2000 Hz top-bandwidth sub-bottom penetrator and mud profiler systems; Antarc*; Antarctic
• Online Access: https://researchdata.edu.au/rv-investigator-voyage-profiler-data/2047485

Maintenance and Update Frequency: asNeeded Statement: Original field data. This record describes sub bottom profiler data collected on RV Investigator voyage IN2021_V01, titled: "Quantifying krill abundance for krill monitoring and management off the Australian Antarctic Territory," which departed Hobart on the 29th January 2021 and returned to Hobart on the 24th March 2021 (AEST). 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/sporadically] for the extent of the voyage. Data are stored in *.raw (972 files 16.8 GB) raw and *.seg (7024 files 5.35 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