This record describes multibeam echosounder data collected on RV Investigator voyage IN2015_T02, which departed Sydney 2015-06-22 and arrived Hobart on 2015-06-26. The Kongsberg EM122 multibeam echosounder was used to acquire seafloor bathymetry and backscatter information along the shelf and slope from Sydney to Hobart. Ping rate varied according to depth. Data are stored in *.all raw format at CSIRO Oceans and Atmosphere. There are 72 files totalling 4.7 GB of raw data in this dataset. Sound velocity profiles using sea surface temperature 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 multibeam echosounder data collected on RV Investigator voyage IN2015_T01, which departed Hobart 2015-05-10 and arrived Sydney on 2015-05-13. The Kongsberg EM710 multibeam echosounder was used to acquire seafloor bathymetry and backscatter information along the east coast slope from Hobart to Sydney. Ping rate varied according to depth. Data are stored in *.all raw format at CSIRO Oceans and Atmosphere. There are 33 files totaling 3.1 GB of raw data in this dataset. Sound velocity profiles using climatology 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 multibeam echosounder data collected on RV Investigator voyage IN2015_T01, which departed Hobart 2015-05-10 and arrived Sydney on 2015-05-13. The Kongsberg EM122 multibeam echosounder was used to acquire seafloor bathymetry and backscatter information along the east coast slope from Hobart to Sydney. Ping rate varied according to depth. Data are stored in *.all raw format at CSIRO Oceans and Atmosphere. There are 65 files totaling 2.6 GB of raw data in this dataset. Sound velocity profiles using sea surface temperature 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 multibeam echosounder data collected on RV Investigator voyage IN2015_V02, which departed Sydney on 15 May 2015 and arrived in Brisbane on 26 May 2015. The Kongsberg EM170 multibeam echosounder was used to acquire seafloor bathymetry and backscatter information off Fraser Island , surveying for suitable mooring locations. Ping rate varied according to depth. Data are stored in *.all raw format at CSIRO Oceans and Atmosphere. There are 20 files totalling 2.61 GB of raw data in this dataset. Processed data are available in XYZ format. Additional information regarding this dataset 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 IN2015_V03, which departed Brisbane on the 3rd June 2015 and arrived Sydney on 18th June 2015. The Kongsberg EM710 multibeam echosounder was used to acquire seafloor bathymetry and backscatter information in Tasman Sea. Ping rate varied according to depth. Data are stored in *.all raw format at CSIRO Oceans and Atmosphere. There are 168 files totaling 18.4 GB of raw data in this dataset. 31 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 multibeam echosounder data collected on RV Investigator voyage IN2015_V02, which departed Sydney on 15 May 2015 and arrived in Brisbane on 26 May 2015. The Kongsberg EM122 multibeam echosounder was used to acquire seafloor bathymetry and backscatter information off Fraser Island out to the abyssal plain, surveying for suitable mooring locations. Ping rate varied according to depth. Data are stored in *.all raw format at CSIRO Oceans and Atmosphere. There are 167 files totalling 4.66 GB of raw data in this dataset. 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 may be available on request.

This record describes multibeam echosounder data collected on RV Investigator voyage IN2015_V03, which departed Brisbane on the 3rd June 2015 and arrived Sydney on 18th June 2015. The Kongsberg EM122 multibeam echosounder was used to acquire seafloor bathymetry and backscatter information in the Tasman Sea. Ping rate varied according to depth. Data are stored in *.all raw format at CSIRO Oceans and Atmosphere. There are 368 files totalling 18.2 GB of raw data in this dataset. 31 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 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 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 multibeam echosounder data collected on RV Investigator voyage IN2015_E05, which departed Hobart 2015-05-01 and returned on 2015-05-05. The Kongsberg EM122 multibeam echosounder was used to acquire seafloor bathymetry and backscatter information along the east coast slope offshore from Freycinet Peninsula. Ping rate varied according to depth. Data are stored in *.all raw format at CSIRO Oceans and Atmosphere. There are 62 files totaling 1.6 GB of raw data in this dataset. Sound velocity profiles using sea surface temperature were applied to this data during data acquisition. Tide corrections were not applied to the processed data. Due to the shallow nature of the inshore site and the duration of this survey over several tides, tide corrections will need to be applied from AusTides or from the data from the Triabunna tidal station. 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.