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RV Investigator Voyage IN2022_V08 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 voyage IN2022_V08, titled "Biodiversity Assessment of Australia’s Indian Ocean Territories", which departed Darwin on September 30 and returned to Fremantle on November 3, 2022. This was a continuation of voyage IN2021_v04. 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. With the exception of periods when stationary (e.g. during CTD casts), the SBP120 was logged continuously for the extent of the voyage. Data are stored in .raw (1015 files 22.2 GB) raw and .seg (1006 files 22.1 GB) segy formats at CSIRO. The segy format data had a real time processing stream applied, which applies gain, a gain correction, and matched filter with replica shaping. 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 IN2022_V08 SBP120 Sub-bottom Profiler Data
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/6087fffd-aca8-4bce-a1bb-0067a7b184c1
Contact Point
CSIRO Marlin Data Catalogue
NCMIGeophysicalSurveyMapping@csiro.au
Reference Period 30/11/2022
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        95.233,
        -32.175
      ],
      [
        130.882,
        -32.175
      ],
      [
        130.882,
        -10.483
      ],
      [
        95.233,
        -10.483
      ],
      [
        95.233,
        -32.175
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal CSIRO Marlin

Data Source

This dataset was originally found on CSIRO Marlin "RV Investigator Voyage IN2022_V08 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-in2022_v08-sbp120-sub-bottom-profiler-data