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RV Investigator Voyage IN2023_V07 EM-APEX Profiling Floats Data

Created 12/02/2026

Updated 12/02/2026

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This record describes the EM-APEX Floats data from the Marine National Facility (MNF) RV Investigator voyage IN2023_V07, titled "SWOT-ACC: smaller scales of the Antarctic Circumpolar Current in a meander south of Tasmania." The voyage took place between November 15, 2023 and December 20, 2023 (AEST), departing from Hobart and returning to Hobart. Two EM-APEX floats were deployed to measure high-resolution profiles of temperature, salinity, pressure, and horizontal velocity in the Antarctic Circumpolar Current. These observations provide critical subsurface data to link small-scale variability in sea surface height observed by the SWOT satellite with underlying ocean circulation, eddy activity, and cross-front transport of heat and carbon. Tracking of the EM-APEX floats is available via the interactive map link, using hull numbers f10331 and f10317.

Files and APIs

Additional Info

Field Value
Title RV Investigator Voyage IN2023_V07 EM-APEX Profiling Floats Data
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/4c6b71ef-cdfd-4f70-8975-9d83541190f7
Contact Point
CSIRO Marlin Data Catalogue
h.e.phillips@utas.edu.au
Reference Period 22/01/2026
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        147.3305,
        -56.8626
      ],
      [
        154.2919,
        -56.8626
      ],
      [
        154.2919,
        -42.8424
      ],
      [
        147.3305,
        -42.8424
      ],
      [
        147.3305,
        -56.8626
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal CSIRO Marlin

Data Source

This dataset was originally found on CSIRO Marlin "RV Investigator Voyage IN2023_V07 EM-APEX Profiling Floats 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-in2023_v07-em-apex-profiling-floats-data