This record describes multibeam echosounder data collected on RV Investigator voyage IN2017_E03, Equipment Commissioning Sea Trials, which departed Brisbane on the 20th August 2017 and returned to Brisbane on the 24th of August 2017.
The Kongsberg EM710 MKII multibeam echosounder was used to acquire seafloor bathymetry and backscatter information off the coast of Brisbane.
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 17 files totalling 1.73 GB of raw data in this dataset.
A patch test calibration was performed for the EM710 during this voyage to obtain pitch, roll and yaw calibration values.
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 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.