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RV Investigator Voyage IN2020_V01 SBP120 Sub-bottom Profiler Data

Created 12/10/2024

Updated 12/10/2024

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This record describes sub bottom profiler data collected from the Marine National Facility (MNF) RV Investigator Voyage IN2020_V01, titled: “Development of William’s Ridge, Kerguelen Plateau: tectonics, hotspot magmatism, microcontinents, and Australia’s Extended Continental Shelf” between January 08 and March 06, 2020 departing from Henderson (WA) and returning back to Fremantle (WA).

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 (972 files 17.7 GB) raw and .seg (996 files 18.2 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

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Additional Info

Field Value
Title RV Investigator Voyage IN2020_V01 SBP120 Sub-bottom Profiler Data
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/3d82af87-0450-46bb-bc11-47431c1d38b7
Contact Point
Atlantic Oceanographic and Meteorological Laboratory (AOML)
data-requests-hf@csiro.au
Reference Period 28/04/2020
Geospatial Coverage {"type": "Polygon", "coordinates": [[[70.0, -57.0], [116.0, -57.0], [116.0, -30.0], [70.0, -30.0], [70.0, -57.0]]]}
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