DOI: 10.16904/envidat.316
title: Large Scale Hazard Indication Simulations for avalanches, canton of Grisons

description: We developed a workflow to generate Large Scale Hazard Simulations for avalanches based on digital elevation models and information on the protective function of the forest. This datasets contains the potential avalanche release areas (PRA) as polygons, the simulation outputs (maximum pressure, maximum flow velocity and maximum flow height) as .tif rasters and the outlines of the simulated avalanches (polygon) for the entire area of the canton of Grisons (7105 km2). The simulations are performed for the scenarios wit return periods of 10, 30, 100 and 300 years, once with (FOR) and once without (NoFor) taking the effect of the forest into account.
The details can be found in this publication:
Bühler, Y., Bebi, P., Christen, M., Margreth, S., Stoffel, L., Stoffel, A., Marty, C., Schmucki, G., Caviezel, A., Kühne, R., Wohlwend, S., and Bartelt, P.: Automated avalanche hazard indication mapping on state wide scale, Nat. Hazards Earth Syst. Sci. Discuss., 2022, 1-22, 10.5194/nhess-2022-11, 2022.
description: Resource Title: Extent of the canton of Grisons
 Size: 685814 bytes
 Format: application/json
 URL: https://www.envidat.ch/dataset/e6f8ad1b-8e7e-442e-a2f9-7c8cff814110/resource/70e9127c-8510-497c-a3f5-9637aa6d2b8e/download/extent_kt_gr.json
 Description:
description: Resource Title: Scenario 10years with Forest
 Size: 661720583 bytes
 Format: application/x-7z-compressed
 URL: https://www.envidat.ch/dataset/e6f8ad1b-8e7e-442e-a2f9-7c8cff814110/resource/d3574570-66a9-4c25-b196-727a7123dd7a/download/10yfor.7z
 Description: PRA_.shp = avalanche release areas shape file with the attributes in the attribute table
_maxHEIGHT.tif = maximum flow height [m]
_maxPRESSURE.tif = maximum impact pressure [kPa]
_maxVELOCITY.tif = maximum flow velocity [m/s]
_outlines = outline shape file of every avalanche simulation linked to the PRA shape file by ID
description: Resource Title: Scenario 10 years without forest
 Size: 924911068 bytes
 Format: application/x-7z-compressed
 URL: https://www.envidat.ch/dataset/e6f8ad1b-8e7e-442e-a2f9-7c8cff814110/resource/60fe952f-bdec-418b-9399-36bdb4ef2faf/download/10ynofor.7z
 Description: PRA_.shp = avalanche release areas shape file with the attributes in the attribute table 
_maxHEIGHT.tif = maximum flow height [m] 
_maxPRESSURE.tif = maximum impact pressure [kPa] 
_maxVELOCITY.tif = maximum flow velocity [m/s] 
_outlines = outline shape file of every avalanche simulation linked to the PRA shape file by ID
description: Resource Title: Scenario 30 years with forest
 Size: 692742534 bytes
 Format: application/x-7z-compressed
 URL: https://www.envidat.ch/dataset/e6f8ad1b-8e7e-442e-a2f9-7c8cff814110/resource/5986053e-b75f-484b-8adc-c3e19261adef/download/30yfor.7z
 Description: PRA_.shp = avalanche release areas shape file with the attributes in the attribute table 
_maxHEIGHT.tif = maximum flow height [m] 
_maxPRESSURE.tif = maximum impact pressure [kPa] 
_maxVELOCITY.tif = maximum flow velocity [m/s] 
_outlines = outline shape file of every avalanche simulation linked to the PRA shape file by ID
description: Resource Title: Scenario 30 years without forest
 Size: 945391364 bytes
 Format: application/x-7z-compressed
 URL: https://www.envidat.ch/dataset/e6f8ad1b-8e7e-442e-a2f9-7c8cff814110/resource/d332e2fd-d8b0-4d4b-9c3e-fefed822908a/download/30ynofor.7z
 Description: PRA_.shp = avalanche release areas shape file with the attributes in the attribute table 
_maxHEIGHT.tif = maximum flow height [m] 
_maxPRESSURE.tif = maximum impact pressure [kPa] 
_maxVELOCITY.tif = maximum flow velocity [m/s] 
_outlines = outline shape file of every avalanche simulation linked to the PRA shape file by ID
description: Resource Title: Scenario 100 years with forest
 Size: 805376043 bytes
 Format: application/x-7z-compressed
 URL: https://www.envidat.ch/dataset/e6f8ad1b-8e7e-442e-a2f9-7c8cff814110/resource/01d6b5be-6c29-4e2e-99da-f964c91de64f/download/100yfor.7z
 Description: PRA_.shp = avalanche release areas shape file with the attributes in the attribute table 
_maxHEIGHT.tif = maximum flow height [m] 
_maxPRESSURE.tif = maximum impact pressure [kPa] 
_maxVELOCITY.tif = maximum flow velocity [m/s] 
_outlines = outline shape file of every avalanche simulation linked to the PRA shape file by ID
description: Resource Title: Scenario 100 years without forest
 Size: 1020375084 bytes
 Format: application/x-7z-compressed
 URL: https://www.envidat.ch/dataset/e6f8ad1b-8e7e-442e-a2f9-7c8cff814110/resource/d5c001b9-1321-4f3d-9f93-89b0c9479dd0/download/100ynofor.7z
 Description: PRA_.shp = avalanche release areas shape file with the attributes in the attribute table 
_maxHEIGHT.tif = maximum flow height [m] 
_maxPRESSURE.tif = maximum impact pressure [kPa] 
_maxVELOCITY.tif = maximum flow velocity [m/s] 
_outlines = outline shape file of every avalanche simulation linked to the PRA shape file by ID
description: Resource Title: Scenario 300 years with forest
 Size: 846835441 bytes
 Format: application/x-7z-compressed
 URL: https://www.envidat.ch/dataset/e6f8ad1b-8e7e-442e-a2f9-7c8cff814110/resource/3d0bff73-c8e1-4f2e-9a38-f83b3a4b98ee/download/300yfor.7z
 Description: PRA_.shp = avalanche release areas shape file with the attributes in the attribute table 
_maxHEIGHT.tif = maximum flow height [m] 
_maxPRESSURE.tif = maximum impact pressure [kPa] 
_maxVELOCITY.tif = maximum flow velocity [m/s] 
_outlines = outline shape file of every avalanche simulation linked to the PRA shape file by ID
description: Resource Title: Scenario 300 years without forest
 Size: 1042271198 bytes
 Format: application/x-7z-compressed
 URL: https://www.envidat.ch/dataset/e6f8ad1b-8e7e-442e-a2f9-7c8cff814110/resource/953acbf3-3a6a-4df1-acf8-ef4108f5f0a9/download/300ynofor.7z
 Description: PRA_.shp = avalanche release areas shape file with the attributes in the attribute table 
_maxHEIGHT.tif = maximum flow height [m] 
_maxPRESSURE.tif = maximum impact pressure [kPa] 
_maxVELOCITY.tif = maximum flow velocity [m/s] 
_outlines = outline shape file of every avalanche simulation linked to the PRA shape file by ID