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Neural networks and landslide susceptibility: a case study of the urban area of Potenza

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Abstract

For those working in the field of landslide prevention, the estimation of hazard levels and the consequent production of thematic maps are principal objectives. They are achieved through careful analytical studies of the characteristics of landslide prone areas, thus, providing useful information regarding possible future phenomena. Such maps represent a fundamental step in the drawing up of adequate measures of landslide hazard mitigation. However, for a complete estimation of landslide hazard, meant as the degree of probability that a landslide occurs in a given area, within a given space of time, detailed and uniformly distributed data regarding their incidence and causes are required. This information, while obtainable through laborious historical research, is usually partial, incomplete and uneven, and hence, unsatisfactory for zoning on a regional scale. In order to carry this out effectively, the utilization of spatial estimation of the relative levels of landslide hazard in the various areas was considered opportune. These areas were classified according to their levels of proneness to landslide activity without taking recurrence periods into account. Various techniques were developed in order to obtain upheaval numerical estimates. The method used in this study, which was applied in the area of Potenza, is based on techniques derived from artificial intelligence (Artificial Neural Network—ANN). This method requires the definition of appropriate thematic layers, which parameterize the area under study. These are recognized by means of specific analyses in a functional relationship to the event itself. The parameters adopted are: slope gradient, slope aspect, topographical index, topographical shape, elevation, land use and lithology.

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Acknowledgement

The authors would like to thank the two referees for their accurate review of the manuscript and their valuable comments.

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Authors and Affiliations

  1. Department of Engineering and Physics of the Environment, University of Basilicata, Potenza, Italy

    Donatella Caniani, Stefania Pascale & Aurelia Sole

  2. Dipartimento di Strutture, Geotecnica, Geologia Applicata, University of Basilicata, Viale dell’ Ateneo Lucano, 10, Potenza, 85100, Italy

    Francesco Sdao

Authors
  1. Donatella Caniani
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  2. Stefania Pascale
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  3. Francesco Sdao
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  4. Aurelia Sole
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Correspondence to Francesco Sdao.

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Caniani, D., Pascale, S., Sdao, F. et al. Neural networks and landslide susceptibility: a case study of the urban area of Potenza. Nat Hazards 45, 55–72 (2008). https://doi.org/10.1007/s11069-007-9169-3

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  • DOI: https://doi.org/10.1007/s11069-007-9169-3

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