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RV Investigator Voyage IN2025_V07 SBP29 Sub-bottom Profiler Data

Created 08/01/2026

Updated 08/01/2026

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This record describes sub bottom profiler data collected on RV Investigator voyage IN2025_V07, 'SOFS recovery voyage' which departed Hobart on the 1/7/2025 and returned to Hobart on the 6/7/2025. This voyage was staffed by only one GSM team member, thus 24 hours acquisition was not possible and there may be gaps in the data record.

The Kongsberg SBP29 (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 SBP29 was logged sporadically for the extent of the voyage.

Data are stored in .raw (39 files 0.8 GB) raw and .seg (39 files 0.7 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 IN2025_V07 SBP29 Sub-bottom Profiler Data
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/0e847072-e814-46a8-ad47-e3c7017a8dc9
Contact Point
CSIRO Marlin Data Catalogue
NCMIGeophysicalSurveyMapping@csiro.au
Reference Period 29/07/2025
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        142.7787,
        -47.6341
      ],
      [
        147.9906,
        -47.6341
      ],
      [
        147.9906,
        -42.8824
      ],
      [
        142.7787,
        -42.8824
      ],
      [
        142.7787,
        -47.6341
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal CSIRO Marlin

Data Source

This dataset was originally found on CSIRO Marlin "RV Investigator Voyage IN2025_V07 SBP29 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-in2025_v07-sbp29-sub-bottom-profiler-data