1. Flooding Risk from Global Warming in Alpine Basins: An Estimate along a Stream Network †.
- Author
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Monforte, Irene, Evangelista, Giulia, and Claps, Pierluigi
- Subjects
GLOBAL warming ,FLOOD risk ,WATERSHEDS ,METEOROLOGICAL precipitation ,DIGITAL elevation models ,CLIMATE change - Abstract
To provide quantitative elements to the expected rate of change of flood quantiles in Alpine basins due to global warming, a systematical assessment of a river network is undertaken in this paper through the implementation of a geomorphoclimatic approach. The model, called "FloodAlp" produces the flood frequency curve of mountainous catchments based on the stochastic interaction of precipitation and temperature. In view of a widespread application, FloodAlp was revamped here and applied to all the sections of the river network of the Chisone basin (Northwest Italy) identified through a 50 m resolution digital elevation model (DEM). We show that, based on the decrease in snow-affected contributing areas, flood frequency can increase up to 8 times compared to the current frequency, with amplifications depending on the local elevation characteristics of sub-basins. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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