avalanche hazard decreases

The SAFRAN/Crocus/MÉPRA software is used to assess the climatology of the avalanche hazard and its sensitivity to climate change. A natural avalanche-hazard index based on MÉPRA analysis is defined and validated against natural avalanche observations (triggered avalanches are not taken into account).

A 15 year climatology then allows a comparison of avalanche hazard in the different French massifs. Finally, a simple climate scenario (with a general increase of precipitation and temperature) shows that avalanche hazard may decrease slightly in winter (mainly February) and more significantly in May/June. The relative proportion of wet-snow avalanches increases.
Eric Martin and others, Annals of Glaciology, Vol32, number 1, Jan 2001, p163 – 167.
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