Alpine3D simulations of future climate scenarios for Graubunden

This is the simulation dataset from "Response of snow cover and runoff to climate change in high Alpine catchments of Eastern Switzerland", M. Bavay, T. Grünewald, M. Lehning, Advances in Water Resources 55, 4-16, 2013

A model study on the impact of climate change on snow cover and runoff has been conducted for the Swiss Canton of Graubünden. The model Alpine3D has been forced with the data from 35 Automatic Weather Stations in order to investigate snow and runoff dynamics for the current climate. The data set has then been modified to reflect climate change as predicted for the 2021-2050 and 2070-2095 periods from an ensemble of regional climate models.

The predicted changes in snow cover will be moderate for 2021-2050 and become drastic in the second half of the century. Towards the end of the century the snow cover changes will roughly be equivalent to an elevation shift of 800 m. Seasonal snow water equivalents will decrease by one to two thirds and snow seasons will be shortened by five to nine weeks in 2095.

Small, higher elevation catchments will show more winter runoff, earlier spring melt peaks and reduced summer runoff. Where glacierized areas exist, the transitional increase in glacier melt will initially offset losses from snow melt. Larger catchments, which reach lower elevations will show much smaller changes since they are already dominated by summer precipitation.

Funding Information:

This work was supported by:
  • Funding information not available.


Bavay, Mathias; Grünewald, Thomas; Lehning, Michael (2019). Alpine3D simulations of future climate scenarios for Graubunden. EnviDat.

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Data and Resources


Field Values
Publication State
  • Given Name: Mathias  Family Name: Bavay  Email: bavayfoo(at)  ORCID: 0000-0002-5039-1578  Affiliation: WSL/SLF  DataCRediT: Collection, Validation, Curation, Software, Publication
  • Given Name: Thomas  Family Name: Grünewald  Email: gruenewaldfoo(at)  Affiliation: WSL/SLF  DataCRediT: Collection, Validation
  • Given Name: Michael  Family Name: Lehning  Email: lehningfoo(at)  Affiliation: WSL/SLF  DataCRediT: Collection, Validation
Contact Person Given Name: Mathias  Family Name: Bavay  Email: bavayfoo(at)  Affiliation: WSL/SLF  ORCID: 0000-0002-5039-1578
Publication Publisher: EnviDat  Year: 2019
  • Type: Collected  Date: 2000-10-01  End Date: 2010-07-21
Version 1.0
Type Dataset
General Type Dataset
Language English
Location Switzerland
Content License ODbL with Database Contents License (DbCL)    [Open Data]
Last Updated November 12, 2019, 16:18 (CET)
Created June 28, 2019, 09:46 (CEST)

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