Nuclear magnetic resonance (NMR) techniques measured brine diffusion in sea ice both vertically and horizontally. The dataset contains measurements from McMurdo Sound, collected by SCIOPS over several seasons and last updated in 2006. It investigates brine pocket anisotropy and its effect on sea ice thermal conductivity.
Use Cases
- Analyze brine diffusivity in vertical and horizontal directions to assess anisotropy in sea ice structure.
- Correlate measured brine diffusion depths (to 1400 mm) with potential convective instabilities affecting thermal conductivity.
- Use NMR-derived brine diffusion profiles as a tool for wide-ranging surveys of sea ice crack and imperfection properties.
Strengths
- Measurements taken at depths down to 1400 mm, providing a vertical profile.
- Data collected over several field seasons, indicating repeated observations.
Limitations
- Dataset is from 2006 and may not reflect current sea ice conditions.
- Specific sample size, row count, and measurement intervals are unknown.
Provenance
- Source
- SCIOPS via NASA EarthData.
- Collection Method
- Nuclear magnetic resonance (NMR) probe lowered into angular cuts in sea ice, using Earth's magnetic field and applied gradients.
- Time Range
- Data collected over several seasons; specific years unknown.
- Freshness
- null
- Geography
- McMurdo Sound sea ice.