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Key climate indices in Switzerland; expected changes in a future climate

Author

Listed:
  • Elias Zubler
  • Simon Scherrer
  • Mischa Croci-Maspoli
  • Mark Liniger
  • Christof Appenzeller

Abstract

Climate indices facilitate the interpretation of expected climate change impacts for many sectors in society, economy, and ecology. The new localized data set of climatic change signals for temperature and precipitation presented by Zubler et al. (Clim Change, 2013 ) is applied for an analysis of frequently used climate indices in Switzerland. The indices considered are: number of summer days and tropical nights, growing season length, number of frost days and ice days, heating and cooling degree days, and the number of days with fresh snow. For the future periods 2020-49, 2045-74 and 2070–2099 the indices are computed using a delta-change approach based on the reference period 1980–2009 for the emission scenarios A1B, A2, and RCP3PD. The scenario data suggest the following relevant findings: (1) a doubling of the number of summer days by the end of the century under the scenarios A1B and A2, (2) an appearance of tropical nights even above 1500 m asl, (3) a possible reduction of the number of frost days by more than 3 months at altitudes higher than 2500 m asl, (4) a decline of heating degree days by about 30 % until the end of the century, and (5) the near disappearance of days with fresh snow at low altitudes. It is also shown that the end-of-the-century projections of all indices strongly depend on the chosen emission scenario. Copyright Springer Science+Business Media Dordrecht 2014

Suggested Citation

  • Elias Zubler & Simon Scherrer & Mischa Croci-Maspoli & Mark Liniger & Christof Appenzeller, 2014. "Key climate indices in Switzerland; expected changes in a future climate," Climatic Change, Springer, vol. 123(2), pages 255-271, March.
    • Handle: RePEc:spr:climat:v:123:y:2014:i:2:p:255-271
    DOI: 10.1007/s10584-013-1041-8
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    References listed on IDEAS

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    1. F. Dramis & M. Govi & M. Guglielmin & G. Mortara, 1995. "Mountain permafrost and slope instability in the Italian Alps: The Val Pola Landslide," Permafrost and Periglacial Processes, John Wiley & Sons, vol. 6(1), pages 73-81, January.
    2. Bernard Cerutti & Carmen Tereanu & Gianfranco Domenighetti & Eva Cantoni & Marco Gaia & Iva Bolgiani & Mario Lazzaro & Ignazio Cassis, 2006. "Temperature related mortality and ambulance service interventions during the heat waves of 2003 in Ticino (Switzerland)," International Journal of Public Health, Springer;Swiss School of Public Health (SSPH+), vol. 51(4), pages 185-193, July.
    3. S. Kotlarski & T. Bosshard & D. Lüthi & P. Pall & C. Schär, 2012. "Elevation gradients of European climate change in the regional climate model COSMO-CLM," Climatic Change, Springer, vol. 112(2), pages 189-215, May.
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    Cited by:

    1. Douglas K. Bardsley & Annette M. Bardsley & Marco Conedera, 2023. "The dispersion of climate change impacts from viticulture in Ticino, Switzerland," Mitigation and Adaptation Strategies for Global Change, Springer, vol. 28(3), pages 1-25, March.
    2. Elias Zubler & Andreas Fischer & Mark Liniger & Mischa Croci-Maspoli & Simon Scherrer & Christof Appenzeller, 2014. "Localized climate change scenarios of mean temperature and precipitation over Switzerland," Climatic Change, Springer, vol. 125(2), pages 237-252, July.

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