ADBEX III Antarctic Sea Ice Strain Grid Logbook

Antarctic sea ice strain grid measurements recorded during the ADBEX III voyage of the Nella Dan. The dataset comprises a physical logbook archived at the Australian Antarctic Division, detailing the setup and repeated measurements of a grid made from six canes and the ship's bridge. Data collection concluded in November 1985.

Use Cases

• Calculate sea ice deformation rates from repeated strain grid measurement coordinates.
• Model strain field evolution using time-series measurements of grid point positions.
• Correlate ice mechanics with environmental conditions recorded in the expedition logbook.
• Validate satellite-derived ice motion products against in-situ strain grid measurements.

Strengths

• Primary field measurements from a documented Antarctic research expedition.
• Time-series data from repeated measurements of a fixed strain grid.

Limitations

• Data is stored in a physical logbook, requiring digitization for analysis.
• Sample size and specific measurement intervals are unknown.
• Data is from a single expedition in 1985, limiting temporal generalizability.

Provenance

Source

Australian Antarctic Division (AU_AADC).

Collection Method

Manual field measurements recorded in a physical logbook during the ADBEX III voyage.

Time Range

1985, with final log entry dated 1985-11-09.

Freshness

null

Geography

Antarctic sea ice region traversed by the Nella Dan vessel.