From CSIRO Marlin
JSON RDF ISO19115-3 XML

RV Investigator Voyage IN2020_E01 EM122 Multibeam Echosounder Data

ARCHIVED

Created 13/01/2025

Updated 13/01/2025

JSON RDF ISO19115-3 XML

This record describes multibeam echosounder data collected on RV Investigator voyage IN2020_E01 (Trials and Calibration) which departed Hobart on the 29th July 2020 and returned to Hobart on the 6th August 2020. The purpose of this voyage was to undertake post port-period equipment calibrations and commissioning, sea trials and personnel training. The Kongsberg EM122 multibeam echosounder was used to acquire seafloor bathymetry, backscatter information and watercolumn backscatter in Storm Bay and offshore to the southeast of Tasman Peninsula. The EM122 provides a 1 degree by 1 degree angular resolution. The echosounder's nominal frequency is 12 kHz. A patch test calibration was performed to determine the angular offsets of the system on August 1st, 2020. Data are stored in .all raw format for bathymetry and backscatter and .wcd format for watercolumn backscatter at CSIRO. There are 98 files totalling 3.72 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 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 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

Tags

Additional Info

Field Value
Title RV Investigator Voyage IN2020_E01 EM122 Multibeam Echosounder Data
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/b8082eee-12e9-4002-a478-bef1ef4571e4
Contact Point
Atlantic Oceanographic and Meteorological Laboratory (AOML)
Amy.Nau@csiro.au
Reference Period 13/11/2020
Geospatial Coverage {"type": "Polygon", "coordinates": [[[147.3, -43.5], [149.0, -43.5], [149.0, -42.5], [147.3, -42.5], [147.3, -43.5]]]}
Data Portal data.gov.au

Data Source

This dataset was originally found on data.gov.au "RV Investigator Voyage IN2020_E01 EM122 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-in2020_e01-em122-multibeam-echosounder-data1

Original dataset
Dataset copies

No duplicate datasets found.