UNIGE document Scientific Article
previous document  unige:85711  next document
add to browser collection
Title

Rain-on-snow events, floods and climate change in the Alps: Events may increase with warming up to 4°C and decrease thereafter

Authors
Published in Science of the Total Environment. 2016, vol. 571, p. 228-236
Abstract This paper focuses on the influence of mountain rain-on-snow (ROS) events that can on occasion trigger major floods in alpine catchments. In order to assess the evolution of these events in a recent past, and the potential changes that could be experienced in a changing climate over coming decades,we have focused on a small catchment in north-eastern Switzerland, the Sitter, well-endowed with both climate and hydrological data. Observations showthat there has been an increase in the number of rain-on-snow events since the early 1960s related to the rise in atmospheric temperatures. Results froma simple temperature-based snowmodel showthat the number of ROS events could increase by close to 50% with temperatures 2–4 °C warmer than today, before declining when temperatures go beyond 4 °C. The likelihood of more ROS events suggests that the risks of flooding in a future climate may indeed get worse before they improve.
Keywords Climate changeSnowFloods
Identifiers
Full text
Structures
Research group Climatic Change and Climate Impacts
Citation
(ISO format)
BENISTON, Martin, STOFFEL, Markus. Rain-on-snow events, floods and climate change in the Alps: Events may increase with warming up to 4°C and decrease thereafter. In: Science of the Total Environment, 2016, vol. 571, p. 228-236. https://archive-ouverte.unige.ch/unige:85711

106 hits

1 download

Update

Deposited on : 2016-08-08

Export document
Format :
Citation style :