RV Investigator Voyage IN2017_V02 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), Cooke, Frances (originator), Data Officer (DW), Hobart (processor)
• Format: Dataset
• Language: unknown
• Published: Australian Ocean Data Network
• Subjects: oceans; geoscientificInformation; Ship: Investigator (RV); Marine National Facility; Research Voyage: IN2017_V02; Earth Science | Oceans | Marine Sediments; Marine Features (Australia) | Derwent Estuary; TAS; Global / Oceans | Southern Ocean/ Australia extension; Coastal Waters (Australia) | Tasmania Coast East and Southeast; Sub-bottom Profiler - SBP120; Sub-bottom structure; 2000 Hz top-bandwidth sub-bottom penetrator and mud profiler systems; research vessel; Kongsberg; Southern Ocean
• Online Access: https://researchdata.edu.au/rv-investigator-voyage-profiler-data/934076

Progress Code: completed Maintenance and Update Frequency: asNeeded Statement: Original field data. This record describes sub bottom profiler data collected on RV Investigator voyage IN2017_V02, 'SOTS: Southern Ocean Time Series automated moorings for climate and carbon cycle studies southwest of Tasmania' which departed Hobart on the 17 March 2017 and returned to Hobart on the 28 March 2017. 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. Data are stored in *.raw (18 files 142 MB) raw and *.seg (19 files 141 MB) 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