RV Investigator Voyage IN2024_V03 SBP120 Sub-bottom Profiler Data

Brief description

This record describes sub bottom profiler data collected on RV Investigator voyage IN2024_V03, titled "Untangling the causes of change over 25 years in the southeast marine ecosystem (SEA-MES Voyage 2)." The voyage took place between May 01, 2024 and May 31, 2024 (AEST), departing from Hobart and returning to Sydney.
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 (1368 files 30.5 GB) raw and .seg (1352 files 30.2 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

Full description

Geophysical Survey and Mapping website information for this data set - Geophysical Survey and Mapping website information for this data set and link to downloading data.
RV Investigator survey information - RV Investigator survey information including voyage plans and summaries
MNF home page - Marine National Facility home page
Data Access Portal - Link to the CSIRO Data Access Portal
Underway Visualisation Tool - Link to visualisation tool for Near Real-Time Underway Data (NRUD)
Unnamed resource - License Graphic