An approach to join the spatial and temporal components of landslide susceptibility: an application to the Marche Regione (central Italy)

Authors

  • Roberto W. Romeo Università degli studi di Urbino Carlo Bo, Italy
  • Milena Mari Università degli studi di Urbino Carlo Bo, Italy
  • Mario Floris Università degli studi di Padova, Italia https://orcid.org/0000-0002-8691-2179
  • Giulio Pappafico Università degli studi di Urbino Carlo Bo, Italy
  • Umberto Gori Università degli studi di Urbino Carlo Bo, Italy https://orcid.org/0000-0001-9705-044X

DOI:

https://doi.org/10.4408/IJEGE.2011-02.O-04

Keywords:

landslide, susceptibility, hazard index, GIS, central Italy

Abstract

The paper is focused on the assessment of the landslide susceptibility, de ned as the combination of the natural and human factors that make slopes prone to slide, coupled with the observed recurrence of landslide reactivations. The susceptibility (i.e., the spatial component of the landslide hazard) is assessed by taking into account four causative factors chosen looking at the availability of general-purpose datasets commonly available at area-scale: they are lithology, slope aspect, slope gradient and land use, which are representative of the mechanical properties, morphological features, local climatic conditions and human activities, respectively. The temporal component of the landslide susceptibility is assessed through a multitemporal analysis of aerial photographs, spanning a time interval representative of the climate cycles which recursively affect a basin area (typically, 30 to 50 years long). The two components are then joined to provide an overall estimate of the landslide susceptibility in terms of a landslide hazard index.

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Published

2011-12-30

How to Cite

Romeo, R. W., Mari, M., Floris, M., Pappafico, G., & Gori, U. (2011). An approach to join the spatial and temporal components of landslide susceptibility: an application to the Marche Regione (central Italy). Italian Journal of Engineering Geology and Environment, (2), 63–78. https://doi.org/10.4408/IJEGE.2011-02.O-04

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