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RV Investigator Voyage IN2019_V01 EM710 MKII Multibeam Echosounder Data

Created 12/10/2024

Updated 12/10/2024

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This record describes multibeam echosounder data collected on RV Investigator voyage IN2019_V01, The availability of Antarctic krill to large predators and their role in biogeochemical recycling in the Southern Ocean which departed Hobart on the 19th January, 2019 and returned to Hobart on the 5th of March, 2019.

The Kongsberg EM710 MKII multibeam echosounder was used to acquire seafloor bathymetry and backscatter information for a limited time during the transit off/on the shelf to/from Hobart. For the majority of the voyage, the EM710 MKII was not operated due to depth ranges beyond the operating capabilities or due to interference with the water column acoustic instruments of greater priority.

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 35 files totalling 6.91 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 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.

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Additional Info

Field Value
Title RV Investigator Voyage IN2019_V01 EM710 MKII Multibeam Echosounder Data
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/a244522a-b2ed-420d-bf56-b2f9f1a3c591
Contact Point
Atlantic Oceanographic and Meteorological Laboratory (AOML)
data-requests-hf@csiro.au
Reference Period 21/08/2024
Geospatial Coverage {"type": "Polygon", "coordinates": [[[147.31, -44.04], [148.21, -44.04], [148.21, -42.86], [147.31, -42.86], [147.31, -44.04]]]}
Data Portal data.gov.au

Data Source

This dataset was originally found on data.gov.au "RV Investigator Voyage IN2019_V01 EM710 MKII Multibeam Echosounder Data". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/rv-investigator-voyage-in2019_v01-em710-mkii-multibeam-echosounder-data

Original dataset
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No duplicate datasets found.