This record describes the operations undertaken and geological sample data collected on the Fugro vessel REM Etive Charter Voyage RE2017_C01, titled "Great Australian Bight (GAB) Deep Water Geological and Benthic Ecology Program." This charter voyage took place from Hobart to Adelaide between the 13th of March and the 6th of April, 2017. The voyage, undertaken over 25 days, was a great success with 33 researchers from several research organisations and the vessel crew undertaking 40 operations over 5 target areas in water depths ranging from 1000 m to 3000 m. The voyage deployed a diverse range of instrumentation fully utilising the REM Etive capabilities which included two work class Remotely Operated Vehicles (ROV). This record contains video stills data recorded by the ROVs during the survey. Images can be accessed and downloaded via the Distribution links below.

This record describes multibeam echosounder data collected on RV Investigator voyage IN2015_C02, Great Australian Bight Research Program: GAB deep-water pelagic and benthic ecosystem study which departed which departed Port Lincoln on the 30 November 2015 and returned to Fremantle on the 22 December 2015. The Kongsberg EM710 MKII multibeam echosounder was used to acquire seafloor bathymetry and backscatter information around the Great Australian Bight. The EM710 MKII provides a 0.5° by 1° transmit and receive angular resolution respectively. The echosounder's nominal frequency range is from 40 to 100 kHz. Data are stored in *.all raw format for bathymetry and backscatter at CSIRO. There are 155 files totaling 11.4 GB of raw data in this dataset. Sound velocity profiles were applied to this data during data acquisition. Bathymetry data contained in *.all format are corrected for motion and position. Tide corrections were not applied to the processed data. Processed data has had outliers removed. Processed line data are available in *.gsf and ascii format, and processed bathymetry and backscatter grids in geotiff format. Additional information regarding this dataset, including further information on processing streams, is contained in the GSM data acquisition and processing report. Additional data products may be available on request.

This record describes multibeam echosounder data collected on RV Investigator voyage IN2017_C01, 'GAB deep water geological and benthic ecology program' which departed Hobart on the 11 April 2017 and returned to Hobart on the 28 April 2017. The Kongsberg EM710 MKII multibeam echosounder was used to acquire seafloor bathymetry and backscatter information and watercolumn backscatter around the GAB. The EM710 MKII provides a 0.5° by 1° transmit and receive angular resolution respectively. The echosounder's nominal frequency range is from 40 to 100 kHz. Data are stored in *.all raw format for bathymetry and backscatter and *.wcd format for watercolumn backscatter at CSIRO. There are 118 files totalling 47.4 GB of raw data in this dataset. Sound velocity profiles were applied to this data during data acquisition. Bathymetry data contained in *.all format are corrected for motion and position. Tide corrections were applied to the processed data. Processed data has had outliers removed. Processed line data are available in *.gsf and ascii format, and processed bathymetry and backscatter grids in geotiff format. Additional information regarding this dataset, including further information on processing streams, is contained in the GSM data acquisition and processing report. Additional data products may be available on request.

This record describes the operations undertaken and geological sample data collected on the Fugro vessel REM Etive Charter Voyage RE2017_C01, titled "Great Australian Bight (GAB) Deep Water Geological and Benthic Ecology Program." This charter voyage took place from Hobart to Adelaide between the 13th of March and the 6th of April, 2017. The voyage, undertaken over 25 days, was a great success with 33 researchers from several research organisations and the vessel crew undertaking 40 operations over 5 target areas in water depths ranging from 1000 m to 3000 m. The voyage deployed a diverse range of instrumentation fully utilising the REM Etive capabilities which included two work class Remotely Operated Vehicles (ROV) and a Sea Floor Drill. This also involved the deployment of these equipment types significantly deeper than previous deployments either in Australia or worldwide. The data and samples collected significantly augment the sparse data and sample collections within the deep water GAB to date. Over 54 pieces of rock were individually collected by the ROVs, plus 162.98m of core drilled. This record contains data recorded during the survey including the activity log, observation log, operation log, a log of general photographs taken, descriptions of geology collected, biology catch locations, details of samples taken for analysis and the daily "Trip" details which defined the daily reporting periods. The Seafloor Drill 80mm diameter X 1m long Core sections were split and sampled for geochemical analysis. Remainders of the cores have been archived. Sampled half of the core at room temperature at the Perth Core Library, 37 Harris Street, Carlisle, WA 6101 phone +61 8 9470 0305. Images or documents of geological samples can be accessed and downloaded via the Distribution links below.

This record describes the Towed Camera video stills taken on the RV Investigator Charter Voyage IN2015_C01, titled "Great Australian Bight (GAB) Deep Water Geological and Benthic Ecology Program." This charter voyage took place from Hobart to Port Lincoln between the 22nd of October and the 28th of November, 2015. The voyage, undertaken over 34 days, was a great success with 37 researchers from seven research organisations and the vessel crew undertaking 128 operations over 17 target areas in water depths ranging from 700 m to 5,437 m. 23 towed camera operations were undertaken across the survey extents in water depths less than 3000m. Video data was collected for each of these operations. The collection of stills extracted from the towed camera videos can be obtained by contacting the data librarians or the person listed as the individual responsible for the data.

This record describes the Towed Camera video stills taken on the RV Investigator Charter Voyage IN2017_C01, titled "Great Australian Bight (GAB) Deep Water Geological and Benthic Ecology Program." This charter voyage took place from Hobart to Port Lincoln between the 11th and the 27th of April, 2017. The voyage, undertaken over 17 days, was a great success with 31 researchers from five research organisations and the vessel crew undertaking 47 operations over 6 target areas in water depths ranging from 200 m to 5,437 m. 3 towed camera operations were undertaken across the survey extents in water depths less than 3000m. Video data was collected for each of these operations. The collection of stills extracted from the towed camera videos can be obtained by contacting the data librarians or the person listed as the individual responsible for the data.

This record describes sub bottom profiler data collected on RV Investigator voyage IN2015_C02,Great Australian Bight Research Program: GAB deep-water pelagic and benthic ecosystem study which departed Port Lincoln on the 30 November 2015 and returned to Fremantle on the 22 December 2015. 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 for a short (3 hour) period while departing Port Lincoln. SBP120 data was not collected for the remainder of the voyage. Data are stored in *.raw (16 files 250 MB) raw and *.seg (16 files 249 MB) 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