4d86cdac-ea42-4f3e-8201-18fbcda12039 urn:uuid eng UTF-8 nonGeographicDataset nonGeographicDataset 2025-06-24T22:16:13 creation ISO 19115 2016 RV Investigator Voyage IN2017_C02 SBP120 Sub-bottom Profiler Data 4d86cdac-ea42-4f3e-8201-18fbcda12039 This record describes sub bottom profiler data collected on RV Investigator voyage IN2017_C02, ['Hogan Group Hydrographic Survey – Bass Strait'] which departed Hobart on the 4th May 2017 and came alongside Bell Bay following completion of the survey on the 14th May 2017. 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 sporadically for the extent of the voyage. Data are stored in .raw and .seg formats (4537 files 70 GB) 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 {"type": "Polygon", "coordinates": [[[146.5, -43.5], [149.5, -43.5], [149.5, -39.0], [146.5, -39.0], [146.5, -43.5]]]} 146.5 149.5 -43.5 -39.0 Geophysical Survey and Mapping website information for this data set documentDigital Geophysical Survey and Mapping website information for this data set and link to downloading data. HTML RV Investigator survey information documentDigital RV Investigator survey information including voyage plans and summaries HTML MNF home page documentDigital Marine National Facility home page HTML Geophysical Survey and Mapping data acquisition and processing report documentDigital Geophysical Survey and Mapping data acquisition and processing report HTML Unnamed resource documentDigital License Graphic PNG