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RV Investigator Voyage IN2023_V05 EM710 MKII Multibeam Echosounder Data

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Created 13/01/2025

Updated 13/01/2025

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This record describes multibeam echosounder data collected on RV Investigator voyage IN2023_V05, titled "Untangling the causes of change over 25 years in the southeast marine ecosystem (Voyage 1). The voyage took place between June 28, 2023 and July 30, 2023 (AEST), departing from Hobart and returning to Hobart. The Kongsberg EM710 MKII multibeam echosounder was used to acquire seafloor bathymetry and backscatter information [and watercolumn backscatter] between/around [XXXXArea of survey]. 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 1,470 files totalling 198 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 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.

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Additional Info

Field Value
Title RV Investigator Voyage IN2023_V05 EM710 MKII Multibeam Echosounder Data
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/c163fa03-5987-4c31-a880-022e76186a7b
Contact Point
Atlantic Oceanographic and Meteorological Laboratory (AOML)
NCMIGeophysicalSurveyMapping@csiro.au
Reference Period 13/12/2023
Geospatial Coverage {"type": "Polygon", "coordinates": [[[147.33, -43.45], [150.38, -43.45], [150.38, -36.3], [147.33, -36.3], [147.33, -43.45]]]}
Data Portal data.gov.au

Data Source

This dataset was originally found on data.gov.au "RV Investigator Voyage IN2023_V05 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-in2023_v05-em710-mkii-multibeam-echosounder-data1