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RV Investigator Voyage IN2021_E03 SBP120 Sub-bottom Profiler Data

Created 25/06/2025

Updated 25/06/2025

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This record describes sub-bottom profiler data collected on RV Investigator voyage IN2021_E03, to calibrate and commission new, upgraded and existing critical equipment (with sea trials and personnel training) onboard RV Investigator for upcoming voyages in the 2021 schedule and beyond. The primary objectives were testing the Giant Piston and Kasten Corer as well as the Deep Towed Camera. The voyage departed Hobart PW04 on the 30/11/2021 and returned to Hobart PW04 on the 08/12/2021. 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 continuously for the extent of the voyage. Data are stored in .raw (706 files 6.13 GB) raw and .seg (703 files 6.14 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

Files and APIs

Additional Info

Field Value
Title RV Investigator Voyage IN2021_E03 SBP120 Sub-bottom Profiler Data
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/eef4e625-1709-4b93-84ca-9a1c0e270b0d
Contact Point
CSIRO Marlin Data Catalogue
NCMIGeophysicalSurveyMapping@csiro.au
Reference Period 09/12/2022
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        146.8258,
        -44.6169
      ],
      [
        148.7954,
        -44.6169
      ],
      [
        148.7954,
        -42.8861
      ],
      [
        146.8258,
        -42.8861
      ],
      [
        146.8258,
        -44.6169
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal CSIRO Marlin

Data Source

This dataset was originally found on CSIRO Marlin "RV Investigator Voyage IN2021_E03 SBP120 Sub-bottom Profiler Data". Please visit the source to access the original metadata of the dataset:
https://marlin.csiro.au/geonetwork/srv/eng/csw/dataset/rv-investigator-voyage-in2021_e03-sbp120-sub-bottom-profiler-data