RV Investigator Voyage IN2023_V03 EM710 MKII Multibeam Echosounder Data

Brief description

This record describes multibeam echosounder data collected on RV Investigator voyage IN2023_V03, SOTS: Southern Ocean Time Series automated moorings for climate and carbon cycle studies southwest of Tasmania which departed Hobart on May 12, 2023 and returned to Hobart on May 25, 2023.
The Kongsberg EM710 MKII multibeam echosounder was used to acquire seafloor bathymetry and backscatter information and watercolumn backscatter between Hobart, the SOTS location and while on site.
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 85 files totalling 70.6 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.
GPS tide was computed using the EGM2008 model and 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.

Full description

Geophysical Survey and Mapping website information for this data set - Geophysical Survey and Mapping website information for this data set and link to downloading data.
RV Investigator survey information - RV Investigator survey information
MNF home page - Marine National Facility home page
Underway Visualisation Tool - Link to visualisation tool for Near Real-Time Underway Data (NRUD)
Data Access Portal - Link to the CSIRO Data Access Portal
Unnamed resource - License Graphic