This record describes echosounder data collected on RV Investigator voyage IN2014_E04 which departed Hobart on the 26 Nov 2014 and returned to Hobart on the 28 Nov 2014. The Simrad ME70 echosounder was used to acquire water column data in Storm Bay and east of Hobart. Data are stored in Simrad *.raw raw format at CSIRO Oceans and Atmosphere. There are 23 files totalling 20 GB of raw data in this dataset. Additional information regarding this dataset is contained in the GSM data acquisition and processing report.

This record describes echosounder data collected on RV Investigator voyage IN2015_E01, which departed Hobart on the 29 Jan 2015 and returned to Hobart on the 19 Feb 2015, after successfully testing equipment at 65° south. The Simrad ME70 echosounder was used to acquire water column data between Hobart and Antarctica. Data are stored in Simrad *.raw raw format at CSIRO Oceans and Atmosphere. There are 57 files totalling 43.4 GB of raw data in this dataset. Additional information regarding this dataset is contained in the GSM data acquisition and processing report.

This record describes echosounder data collected on the Marine National Facility RV Investigator voyage IN2015_V01. This is the first research voyage for the RV Investigator departing Hobart on the 21 March and returning to Hobart on the 30 March, 2015. Data are stored in Simrad *.raw raw format at CSIRO Oceans and Atmosphere. There are 28 files totaling 26.3 GB of raw data in this dataset. Additional information regarding this dataset is contained in the GSM data acquisition and processing report.

This record describes multibeam echosounder data collected on RV Investigator voyage IN2014_E03 which departed Hobart on the 11 Nov 2014 and returned to Hobart on 17 Nov 2014. The Kongsberg EM710 multibeam echosounder was used to acquire seafloor bathymetry and backscatter information from the East Coast of Tasmania. Ping rate varied according to depth. Data are stored in *.all raw format at CSIRO Oceans and Atmosphere. There are 115 files totalling 9.47 GB of raw data in this dataset. There are 20 files of Water column data for parts of this survey (7.76 GB), 34 sound velocity profiles were applied to this data during data acquisition. Tide corrections were not applied to the processed data. Processed data are available in XYZ and GSF format. Additional information regarding this dataset is contained in the GSM data acquisition and processing report. Additional data products available on request.

This record describes echosounder data collected on RV Investigator voyage IN2015_E01, which departed Hobart on the 29 Jan 2015 and returning to Hobart on the 19 Feb 2015, after successfully testing equipment at 65° south. The Simrad EK60 split beam echosounders 38, 70, 120, 200 and 333 KHz were used to acquire water column and bathymetry data between Hobart and Antarctica. Data are stored in .raw .bot and *.idx format at CSIRO Oceans and Atmosphere. There are 906 files totalling 43.1 GB of raw data in this dataset. Additional information regarding this dataset is contained in the GSM data acquisition and processing report.

This record describes multibeam echosounder data collected on RV Investigator voyage IN2014_E03 which departed Hobart on the 11 Nov 2015, and returned to Hobart on 17 Nov 2015. The Kongsberg EM122 multibeam echosounder was used to acquire seafloor bathymetry and backscatter information from the East Coast of Tasmania. Ping rate varied according to depth. Data are stored in *.all raw format at CSIRO Oceans and Atmosphere. There are 127 files totalling 5.37 GB of raw data in this dataset. A total of 34 sound velocity profiles were applied to this data during data acquisition. Tide corrections were not applied to the processed data. Processed data are available in XYZ and GSF format. Additional information regarding this dataset is contained in the GSM data acquisition and processing report. Additional data products available on request.

This record describes echosounder data collected on the Marine National Facility RV Investigator voyage IN20Y15_V03. This voyage took place from Brisbane to Sydney between 3rd June 2015 and 18th June 2015. The Simrad EK60 split beam echosounders 18, 38, 70, 120, 200 and 333 KHz to acquire water column and bathymetry data. Data are stored in .raw .bot and *.idx format at CSIRO Oceans and Atmosphere. There are 1179 files totaling 80.6GB of raw data in this dataset. Additional information regarding this dataset is contained in the GSM data acquisition and processing report.

This record describes multibeam echosounder data collected on RV Investigator voyage IN2014_E04 which departed Hobart on the 26 Nov 2014 and returned to Hobart on the 28 Nov 2014. The Kongsberg EM710 multibeam echosounder was used to acquire seafloor bathymetry and backscatter information East of Hobart. Ping rate varied according to depth. Data are stored in *.all raw format at CSIRO Oceans and Atmosphere. There are 50 files totalling 4.89 GB of raw data in this dataset. Sound velocity profiles were applied to this data during data acquisition. Tide corrections were not applied to the processed data. Processed data are available in XYZ and GSF format. Additional information regarding this dataset is contained in the GSM data acquisition and processing report. Additional data products available on request.

This record describes echosounder data collected on the Marine National Facility RV Investigator voyage IN2015_V01. This is the first research voyage for the RV Investigator departing Hobart on the 21 March and returning to Hobart on the 30 March, 2015. Ping rate varied according to depth. Data are stored in *.all raw format at CSIRO Oceans and Atmosphere. There are 145 files totalling 3.69 GB of raw data in this dataset. GSF files of the data are also available. Sound velocity profiles were applied to this data during data acquisition. Tide corrections were not applied to the processed data. Additional information regarding this dataset is contained in the GSM data acquisition and processing report. Additional data products available on request.

This record describes multibeam echosounder data collected on RV Investigator Event voyage IN2014_E04 which departed Hobart on the 26 Nov 2014 and returning to Hobart on the 28 Nov 2014. The Kongsberg EM122 multibeam echosounder was used to acquire seafloor bathymetry and backscatter information East of Hobart. Ping rate varied according to depth. Data are stored in *.all raw format at CSIRO Oceans and Atmosphere. There are 24 files totalling 0.86 GB of raw data in this dataset. Sound velocity profiles were applied to this data during data acquisition. Tide corrections were not applied to the processed data. Processed data are available in XYZ and GSF format. Additional information regarding this dataset is contained in the GSM data acquisition and processing report. Additional data products available on request.