DOI: 10.16904/envidat.679
title: Sub-Rayleigh to supershear fracture transition in long Propagation Saw Tests

description: 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.
description: Resource Title: img_ref.tif
 Size: 256122 bytes
 Format: image/tiff
 URL: https://www.envidat.ch/dataset/938ce90f-e917-4838-af40-e2e161a22122/resource/eee898b4-1047-488b-a5a7-c9538f9fe39b/download/img_ref.tif
 Description: reference frame used for Digital image correlation of the video of PST1
description: Resource Title: PST1_full.nc
 Size: 4820520982 bytes
 Format: application/octet-stream
 URL: https://www.envidat.ch/dataset/938ce90f-e917-4838-af40-e2e161a22122/resource/ff1a1d3b-4a55-4efc-ae5b-7f4f95a71a9c/download/pst1_full.nc
 Description: netCDF file of dispalcement and strain measurement of PST1 in full view perspective.
description: Resource Title: PST2_full.nc
 Size: 95474900 bytes
 Format: application/octet-stream
 URL: https://www.envidat.ch/dataset/938ce90f-e917-4838-af40-e2e161a22122/resource/05a3cbfe-c5cd-4357-8ae3-c93787d7262c/download/pst2_full.nc
 Description: netCDF file of dispalcement and strain measurement of PST2 in full view perspective.
description: Resource Title: PST3_full.nc
 Size: 63991645 bytes
 Format: application/octet-stream
 URL: https://www.envidat.ch/dataset/938ce90f-e917-4838-af40-e2e161a22122/resource/3fbea48d-4def-40a1-b80b-6298467c098a/download/pst3_full.nc
 Description: netCDF file of dispalcement and strain measurement of PST3 in full view perspective.
description: Resource Title: PST2_closeup.nc
 Size: 5029545808 bytes
 Format: application/octet-stream
 URL: https://www.envidat.ch/dataset/938ce90f-e917-4838-af40-e2e161a22122/resource/b37dfe4f-1477-4b3c-a979-a50891104ce8/download/pst2_closeup.nc
 Description: netCDF file of dispalcement and strain measurement of PST2 in closeup view.
description: Resource Title: PST3_closeup.nc
 Size: 5029545770 bytes
 Format: application/octet-stream
 URL: https://www.envidat.ch/dataset/938ce90f-e917-4838-af40-e2e161a22122/resource/53aad081-49f3-4524-81fd-5ad482a41d60/download/pst3_closeup.nc
 Description: netCDF file of displacement and strain measurement of PST3 in closeup view.
description: Resource Title: 202101191100.SimpleProfile.caaml
 Size: 20239 bytes
 Format: application/octet-stream
 URL: https://www.envidat.ch/dataset/938ce90f-e917-4838-af40-e2e161a22122/resource/11c65ad1-4d24-48f9-a4b4-d5ab446f0327/download/202101191100.simpleprofile.caaml
 Description: manual profile taken next to the PSTs. Open the caaml-file using niviz.org
description: Resource Title: 202101191100.SimpleProfile.pkl
 Size: 3092 bytes
 Format: application/octet-stream
 URL: https://www.envidat.ch/dataset/938ce90f-e917-4838-af40-e2e161a22122/resource/4e0e7212-86dd-427a-803d-f5ce2e99dc17/download/202101191100.simpleprofile.pkl
 Description: pickled version of the manual profile. read into python with pickle. E.g. given the density is used in plotting scripts.
description: Resource Title: snowprofile_87828_de.pdf
 Size: 117573 bytes
 Format: application/pdf
 URL: https://www.envidat.ch/dataset/938ce90f-e917-4838-af40-e2e161a22122/resource/13e725eb-cdcc-4741-b604-5f6e9b20dae5/download/snowprofile_87828_de.pdf
 Description: pdf Version of the manual profile taken next to the PSTs
description: Resource Title: Emod_parametrizations.py
 Size: 3309 bytes
 Format: application/octet-stream
 URL: https://www.envidat.ch/dataset/938ce90f-e917-4838-af40-e2e161a22122/resource/fb277441-199d-4cef-8822-2f83a98c1265/download/emod_parametrizations.py
 Description: Emodul parametrizations for snow. Some functions from this script are imported from the plotting scripts.
description: Resource Title: models.py
 Size: 5763 bytes
 Format: application/octet-stream
 URL: https://www.envidat.ch/dataset/938ce90f-e917-4838-af40-e2e161a22122/resource/584604ff-1cfb-4900-b429-652991451516/download/models.py
 Description: Some functions from this script are imported from the plotting scripts.
description: Resource Title: fig2.ipynb
 Size: 280950 bytes
 Format: application/octet-stream
 URL: https://www.envidat.ch/dataset/938ce90f-e917-4838-af40-e2e161a22122/resource/19389651-d793-485f-883e-f9eac407d711/download/fig2.ipynb
 Description: Jupyter script to load the netcdf files and reproduce Figure 2 from the related publication.
description: Resource Title: fig3.ipynb
 Size: 217503 bytes
 Format: application/octet-stream
 URL: https://www.envidat.ch/dataset/938ce90f-e917-4838-af40-e2e161a22122/resource/137c67a3-5ee2-4aa5-bd4b-8d2aedc29aad/download/fig3.ipynb
 Description: Jupyter script to load the netcdf files and reproduce Figure 3 from the related publication.
description: Resource Title: fig4.ipynb
 Size: 138010 bytes
 Format: application/octet-stream
 URL: https://www.envidat.ch/dataset/938ce90f-e917-4838-af40-e2e161a22122/resource/f91414e4-48e5-4e0e-a3ff-c1757b83a77f/download/fig4.ipynb
 Description: Jupyter script to load the netcdf files and reproduce Figure 4 from the related publication.