Sea Ice DC Conductivity and Core Properties from Antarctic Voyage 2012

SIPEX II voyage data contains DC electrical conductivity, temperature, salinity, and brine volume fraction measurements from sea ice cores collected in Antarctica during 2012. The dataset was compiled by the Australian Antarctic Data Centre from fieldwork aboard the Aurora Australis. It includes supporting crystallography photos and field notebooks.

Use Cases

• Modeling the relationship between fluid permeability and electrical conductivity using measured DC resistance and calculated brine volume fractions.
• Analyzing the correlation between crystal structure and electrical properties by matching conductivity data with crystallography core photos.
• Calculating brine volume fractions along core sections using the recorded temperature and salinity data.
• Studying vertical profiles of sea ice properties from the 10 cm section measurements of resistance and temperature.

Strengths

• Data includes multiple correlated physical properties: DC resistance, temperature, salinity, and brine volume per core section.
• Crystallography photos provide visual ground truth for core structure, tagged with site, core number, and date.

Limitations

• Sample size is limited to cores from a single voyage in 2012, restricting temporal and spatial generalization.
• Data from sites 7 and 8 is incomplete as cores only extended to an ice-slush interface, not the ocean.
• Primary data is stored in a legacy Excel file (Master_Core_List.xls) and scanned field notebooks, which may require manual extraction.

Provenance

Source

Australian Antarctic Data Centre (AU_AADC) via NASA Earthdata.

Collection Method

Field measurements from ice cores extracted during the SIPEX II voyage; DC resistance measured with an AEMC Earth Resistivity Meter over 10 cm sections.

Time Range

2012

Freshness

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Geography

Sea ice floes in Antarctica, specific sites referenced in the dataset.