From CSIRO Marlin
JSON format icon JSON RDF format icon RDF ISO19115-3 XML

RV Investigator Voyage IN2021_E03 EM710 MKII Multibeam Echosounder Data

Created 25/06/2025

Updated 25/06/2025

JSON format icon JSON RDF format icon RDF ISO19115-3 XML

This record describes multibeam echosounder data collected on RV Investigator voyage IN2021_E03, to calibrate and commission new, upgraded and existing critical equipment (with sea trials and personnel training) onboard RV Investigator for upcoming voyages in the 2021 schedule and beyond. The primary objectives were testing the Giant Piston and Kasten Corer as well as the Deep Towed Camera. The voyage departed Hobart PW04 on the 30/11/2021 and returned to Hobart PW04 on the 08/12/2021. The Kongsberg EM710 MKII multibeam echosounder was used to acquire seafloor bathymetry and backscatter information and watercolumn backscatter in the region of South East Tasmania. 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 154 files totalling 109.9 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 using RTK/GPS height and the EGM2008 geoid model in Caris. 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.

Files and APIs

Additional Info

Field Value
Title RV Investigator Voyage IN2021_E03 EM710 MKII Multibeam Echosounder Data
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/ee4fa888-eecf-4208-963e-f86b1e71cb23
Contact Point
CSIRO Marlin Data Catalogue
NCMIGeophysicalSurveyMapping@csiro.au
Reference Period 09/12/2022
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        146.8258,
        -44.6169
      ],
      [
        148.7954,
        -44.6169
      ],
      [
        148.7954,
        -42.8861
      ],
      [
        146.8258,
        -42.8861
      ],
      [
        146.8258,
        -44.6169
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal CSIRO Marlin

Data Source

This dataset was originally found on CSIRO Marlin "RV Investigator Voyage IN2021_E03 EM710 MKII Multibeam Echosounder Data". Please visit the source to access the original metadata of the dataset:
https://marlin.csiro.au/geonetwork/srv/eng/csw/dataset/rv-investigator-voyage-in2021_e03-em710-mkii-multibeam-echosounder-data