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  Information - NH3.09/GM15 The temporal dimension in landslide hazard assessment (co-organized by GM)

Event Information
Many different statistical and probabilistic techniques have been developed and applied successfully to analyse landslide spatial occurrences. However these techniques still cannot be considered truly satisfactory for landslide hazard assessment which should include, by definition, an evaluation of the probability of occurrence of new landslides thus implying the consideration of a time dimension. Unfortunately, this is not the case of most published catchment or regional landslide hazard assessments, which generally only provide a ranking of terrain units in terms of susceptibility, not considering the temporal component of the hazard. Developing better techniques, models and methodologies, improving the quality and number of variables to be fed into probabilistic models and gathering more data related to the time evolution of landslides are necessary tasks.
The objective of this session is to present innovative approaches to assess the temporal occurrence and the frequency of landslide processes and where possible to assess magnitudes in terms of volume, runout distance, deposit thickness or velocity. In this way the temporal dimension and the magnitude of landslide events could be added to the susceptibility maps in order to produce real hazard maps.
The contributions to the Session are planned to be published in a Special Issue of an internationally reviewed Journal.

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