Sub-Rayleigh to supershear fracture transition in long Propagation Saw Tests

This dataset contains the experimental results described in Bergfeld et al. (2025). It includes three Propagation Saw Test (PST) experiments, each approximately 9 m long, performed side-by-side on a 37° slope. For each PST, we provide the full field of view along the crack-propagation direction. For the second and third PSTs, we additionally provide close-up recordings focused on the weak layer where cracking occurred.
All data are supplied as netCDF files containing displacement and strain measurements derived from Digital Image Correlation (DIC) analysis. Metadata describing dimensions and units are stored directly within the netCDF files. We recommend using the xarray package in Python to read and work with these datasets.
All figures presented in Bergfeld et al. (2025) can be reproduced using the included Python scripts.
Information about the snowpack is provided in PDF, pickle, and CAAML file formats.