RV Investigator IN2026_V01 Magnetometer Data from Antarctic Voyage

January 02 to February 25, 2026 magnetometer data collected during the RV Investigator voyage IN2026_V01, titled 'Cook Ice Ecosystems and Sediments (COOKIES).' The data were acquired by the Australian Ocean Data Network using a SeaSPY2 magnetometer towed 300 m astern of the ship. A total of 19 files and 326 MB of raw, unprocessed data are stored in .CSV and .MMS formats.

Use Cases

• Modeling local geomagnetic anomalies based on high-resolution magnetometer readings.
• Analyzing temporal magnetic field variations during the Antarctic summer voyage period.
• Correlating magnetic data with bathymetric or geological features of the survey area.
• Calibrating other geophysical instruments using the magnetometer's stated absolute accuracy of 0.1 nT.

Strengths

• Instrument has high precision with a resolution of 0.001 nT and sensor sensitivity of 0.01 nT.
• Data collection period is precisely defined from January 02, 2026 to February 25, 2026.
• The Overhauser sensor design eliminates heading error and requires no realignment or recalibration.
• Raw data volume is specified as 326 MB across 19 files, providing a clear scale.

Limitations

• No processing has been conducted on this 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 for certain analyses.

Provenance

Source

Australian Ocean Data Network via data_gov_au

Collection Method

Collected by a SeaSPY2 magnetometer towed 300 m astern of the RV Investigator.

Time Range

2026-01-02 to 2026-02-25 (AEST)

Freshness

Last updated 2026-06-23 01:12:34.952370; freshness should be verified.

Geography

Voyage departed from and returned to Hobart, Tasmania; survey area likely in the Antarctic region near the Cook Ice Shelf.