DOI: 10.16904/envidat.663
title: Compilation of normalized crack propagation speeds

description: Compilation of normalized crack-propagation speeds (expressed as a fraction of the slab shear-wave speed).
The dataset contains crack-propagation speeds from DEM simulations (79 flat and 6 tilted; Bobillier et al., 2024), MPM simulations (48 flat and 191 tilted; Trottet et al., 2022), and field measurements: PSTs (222 data points, including 192 from low-angle terrain - 30°; van Herwijnen et al., 2016) and avalanche-video analyses (6 cross-slope and 5 down-slope speeds; Trottet et al., 2022).
The dataset also includes Python scripts that generate the relative-frequency distribution of the compiled, normalized crack-propagation speeds.
Bobillier, G., Bergfeld, B., Dual, J., Gaume, J., van Herwijnen, A., 55 and Schweizer, J.: Numerical investigation of crack propagation regimes in snow fracture experiments, https://doi.org/10.1007/s10035-024-01423-5 2024
Trottet, B., Simenhois, R., Bobillier, G., Bergfeld, B., van Herwijnen, A., Jiang, C. F. F., and Gaume, J.: Transi- 55 tion from sub-Rayleigh anticrack to supershear crack propagation in snow avalanches, Nat. Phys., 18, 1094–1098, https://doi.org/10.1038/s41567-022-01662-4, 2022.
van Herwijnen, A., Gaume, J., Bair, E. H., Reuter, B., Birkeland, K. W., and Schweizer, J.: Estimating the effective elastic modulus and specific fracture energy of snowpack layers from field experiments, J. Glaciol., 62, 997–1007, https://doi.org/10.1017/jog.2016.90, 2016a.
description: Resource Title: DEM_dataNormalizedByc_flat_data.txt
 Size: 2055 bytes
 Format: text/plain
 URL: https://www.envidat.ch/dataset/8a7f5d94-91af-463e-aee0-acbfada0b3ec/resource/458d8261-9b42-4f10-9c30-3979046a0e3a/download/dem_datanormalizedbyc_flat_data.txt
 Description: DEM data flat terrain
description: Resource Title: DEM_dataNormalizedByc_slope_data.txt
 Size: 156 bytes
 Format: text/plain
 URL: https://www.envidat.ch/dataset/8a7f5d94-91af-463e-aee0-acbfada0b3ec/resource/78b26ac4-e690-4371-acc1-42611d937d78/download/dem_datanormalizedbyc_slope_data.txt
 Description: DAM data slope terrain
description: Resource Title: MPM_dataNormalizedByc_flat_data.txt
 Size: 1248 bytes
 Format: text/plain
 URL: https://www.envidat.ch/dataset/8a7f5d94-91af-463e-aee0-acbfada0b3ec/resource/9331f966-5264-425d-9e37-155b0b69fceb/download/mpm_datanormalizedbyc_flat_data.txt
 Description: MPM data flat terrain
description: Resource Title: MPM_dataNormalizedByc_slope_data.txt
 Size: 4966 bytes
 Format: text/plain
 URL: https://www.envidat.ch/dataset/8a7f5d94-91af-463e-aee0-acbfada0b3ec/resource/5f43f7ec-28d5-4b0d-b308-78ed4c3084e7/download/mpm_datanormalizedbyc_slope_data.txt
 Description: MPM data slope terrain
description: Resource Title: NHESS_Fig2.py
 Size: 5481 bytes
 Format: application/octet-stream
 URL: https://www.envidat.ch/dataset/8a7f5d94-91af-463e-aee0-acbfada0b3ec/resource/6821e603-5e6c-43b4-ab07-b435fd406321/download/nhess_fig2.py
 Description:
description: Resource Title: NHESS_Fig2.py
 Size: 5481 bytes
 Format: application/octet-stream
 URL: https://www.envidat.ch/dataset/8a7f5d94-91af-463e-aee0-acbfada0b3ec/resource/270844a2-5218-43a6-95f4-7b81eccd6e3f/download/nhess_fig2.py
 Description: Python scripts that generate the relative-frequency distribution of the compiled, normalized crack-propagation speeds.
description: Resource Title: PST_dataNormalizedByc_slopeHigher30deg_data.txt
 Size: 754 bytes
 Format: text/plain
 URL: https://www.envidat.ch/dataset/8a7f5d94-91af-463e-aee0-acbfada0b3ec/resource/997b18ab-9e57-469a-b72e-8da079e2bc4f/download/pst_datanormalizedbyc_slopehigher30deg_data.txt
 Description: Field data PST &gt;30deg
description: Resource Title: PST_dataNormalizedByc_slopeLess30deg_data.txt
 Size: 4992 bytes
 Format: text/plain
 URL: https://www.envidat.ch/dataset/8a7f5d94-91af-463e-aee0-acbfada0b3ec/resource/9c7c9f4f-74c1-458e-a01d-c0cdc361fe0b/download/pst_datanormalizedbyc_slopeless30deg_data.txt
 Description: Field data PST &lt;30deg
description: Resource Title: Video_dataNormalizedByc_flat_data.txt
 Size: 156 bytes
 Format: text/plain
 URL: https://www.envidat.ch/dataset/8a7f5d94-91af-463e-aee0-acbfada0b3ec/resource/abf2a891-3382-4ca2-82cd-90c30ffb898d/download/video_datanormalizedbyc_flat_data.txt
 Description: Video analyze data cross slope
description: Resource Title: Video_dataNormalizedByc_slope_data.txt
 Size: 130 bytes
 Format: text/plain
 URL: https://www.envidat.ch/dataset/8a7f5d94-91af-463e-aee0-acbfada0b3ec/resource/5aff5cf6-1c1f-4186-bf56-f1e71348016b/download/video_datanormalizedbyc_slope_data.txt
 Description: Video analyze data up-slope