Angle of repose experiments were performed with natural and spherical snow types at controlled temperatures between -2 and -40°C. The dataset contains images of experimental heaps and 3D micro computed tomography images for characterizing snow grain shape and properties. Data was contributed by ENVIDAT and last updated in 2020.
Use Cases
- Analyze the relationship between grain shape (from CT images) and the measured angle of repose for different snow types.
- Model the effect of temperature and sintering on snow cohesion using the observed angle of repose data across the -2 to -40°C range.
- Validate Discrete Element Model simulations by comparing outputs against experimental heap images and repose angles for spherical versus natural grains.
- Characterize snow microstructure and properties using the provided 3D micro computed tomography binary images.
Strengths
- Experiments cover a controlled temperature range from -2 to -40°C.
- Includes both 2D heap images and 3D micro-CT images for multi-modal analysis.
Limitations
- Sample size and number of experimental runs are unknown.
- Data is from 2020 and may not reflect more recent experimental findings.
Provenance
- Source
- ENVIDAT via NASA Earthdata.
- Collection Method
- Angle of repose observed by sieving snow onto a round base; CT images taken with an SLF micro-CT40 scanner.
- Time Range
- null
- Freshness
- null
- Geography
- null