IN2026_V01: Gravity Data from RV Investigator Antarctic Voyage

863 MB of raw gravity data collected during the RV Investigator voyage IN2026_V01, titled 'Cook Ice Ecosystems and Sediments (COOKIES)'. The voyage departed from and returned to Hobart, operating between January 02 and February 25, 2026. Data are stored in 53 .ENV and .DAT files at CSIRO, with no processing conducted.

Use Cases

• Modeling regional gravity anomalies based on ship-track measurements.
• Correlating gravity data with seafloor bathymetry and geology for the Cook Ice Shelf region.
• Calibrating satellite-derived gravity models with in-situ shipborne data.
• Studying temporal gravity variations along the voyage track over the 55-day period.

Strengths

• Data volume is precisely quantified as 863 MB across 53 files.
• The instrument used is specified as a MicroG Lacoste Air-Sea II gravity meter.
• The temporal coverage is clearly defined from January 02 to February 25, 2026.
• The voyage's departure and return port (Hobart) is documented.

Limitations

• No processing has been conducted on the raw data, requiring user expertise for analysis.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Australian Ocean Data Network via data_gov_au.

Collection Method

Collected using a MicroG Lacoste Air-Sea II gravity meter aboard the RV Investigator.

Time Range

January 02, 2026 to February 25, 2026 (AEST).

Freshness

Last updated 2026-06-16 21:59:03.715142; freshness should be verified.

Geography

Voyage track from Hobart to the Cook Ice Shelf region in the Antarctic.