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RV Investigator Voyage IN2025_V04 Gravity Data

Created 08/01/2026

Updated 08/01/2026

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This record describes gravity data collected on the Marine National Facility (MNF) RV Investigator voyage IN2025_V04, titled "Untangling the causes of change over 25 years in the southeast marine ecosystem - Voyage IV." The voyage took place between May 27, 2025 and June 28, 2025 (AEST), departing from Hobart and returning to Hobart.

The gravity meter instrument is a MicroG Lacoste Air-Sea II. Data are stored in .ENV and .DAT data files at CSIRO. There are 33 files totalling 541 MB of raw data in this dataset. A wharf tie was undertaken at the end of the voyage at the Hobart Princes Wharf using a Scintrex Autograv CG-5. Wharf tie data can be found in GravityTie_in2025_v04_Hobart_20250627.TXT, which is stored with the raw data.

No processing has been conducted on this data.

Additional information regarding this dataset is contained in the GSM data acquisition and processing report.

Files and APIs

Additional Info

Field Value
Title RV Investigator Voyage IN2025_V04 Gravity Data
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/e7d6083c-4645-4be4-95f9-58f3b23b542a
Contact Point
CSIRO Marlin Data Catalogue
NCMIGeophysicalSurveyMapping@csiro.au
Reference Period 20/11/2025
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        147.339,
        -43.3202
      ],
      [
        150.3939,
        -43.3202
      ],
      [
        150.3939,
        -36.5277
      ],
      [
        147.339,
        -36.5277
      ],
      [
        147.339,
        -43.3202
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal CSIRO Marlin

Data Source

This dataset was originally found on CSIRO Marlin "RV Investigator Voyage IN2025_V04 Gravity 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-in2025_v04-gravity-data