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AGU: Geophysical Research Letters

 

Keywords

  • global warming
  • flood risk
  • mountain basins

Index Terms

  • Hydrology: Climate impacts
  • Hydrology: Floods
  • Hydrology: Modeling

Abstract

Global warming increases flood risk in mountainous areas

P. Allamano

Dipartimento di Idraulica, Trasporti ed Infrastrutture Civili, Politecnico di Torino, Turin, Italy

P. Claps

Dipartimento di Idraulica, Trasporti ed Infrastrutture Civili, Politecnico di Torino, Turin, Italy

F. Laio

Dipartimento di Idraulica, Trasporti ed Infrastrutture Civili, Politecnico di Torino, Turin, Italy

The paper aims at assessing the impact of global warming on flood risk in mountainous regions, providing measurable evidence of possible hydrologic changes due to temperature increase. It shows that large floods in mountain basins are now more frequent than in the past and that they may become even more frequent under global warming. The morpho-climatic model used for prediction is very simple and does not require calibration, which makes it suitable for application in scarcely gauged mountainous areas of the world.

Received 19 October 2009; accepted 23 November 2009; published 24 December 2009.

Citation: Allamano, P., P. Claps, and F. Laio (2009), Global warming increases flood risk in mountainous areas, Geophys. Res. Lett., 36, L24404, doi:10.1029/2009GL041395.

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