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Regional Rainfall Thresholds for Shallow and Deep-Seated Mass Movements Triggering in the South Eastern French Alps

  • Alexandre RemaîtreEmail author
  • Jean-Philippe Malet
Conference paper

Abstract

The main objective of this work is to propose hydro-meteorological thresholds for the triggering of shallow (slides, debris/mud flows) and deep-seated mass movements within a vast area of the South-East French Alps (Queyras, Ubaye, Tinée) characterized by various rainfall patterns. For this purpose, we exploit a landslide catalogue (containing more than 600 events) for the period 1928–2014 describing the date (and sometimes the hours) of occurrence, the type of mass movement, the geographical location and the nearest meteorological station. Rainfall data are available for 36 stations. A statistical analysis of rainfall conditions associated to triggering of shallow mass movements at various time scales (yearly, monthly, daily and hourly) reveals that rainfall thresholds are spatially highly variable.

Keywords

Triggering Rainfall patterns Rainfall thresholds 

Notes

Acknowledgements

This research was funded through the French ANR Project ‘SAMCO’, the European Project FP7 ‘SafeLand: Living with landslide risk in Europe’ (2009–2012) and through the European Project FP7 ERA-NET CIRCLE ‘Changing Risks’ project.

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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  1. 1.Institut de Physique du Globe de Strasbourg, CNRS UMR 7516Ecole et Observatoire Des Sciences de la Terre, Université de StrasbourgStrasbourgFrance

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