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Merging Historical Archives with Remote Sensing Data: A Methodology to Improve Rockfall Mitigation Strategy for Small Communities

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  • Davide Notti

    (Italian National Research Council, Research Institute for Geo-Hydrological Protection (CNR-IRPI), Strada delle Cacce 73, 10135 Torino, Italy)

  • Diego Guenzi

    (Italian National Research Council, Research Institute for Geo-Hydrological Protection (CNR-IRPI), Strada delle Cacce 73, 10135 Torino, Italy)

  • Rosa Lasaponara

    (Italian National Research Council, Institute of Methodologies for Environmental Analysis (CNR-IMAA), c/da S.Loja, Tito Scalo, 85050 Potenza, Italy)

  • Daniele Giordan

    (Italian National Research Council, Research Institute for Geo-Hydrological Protection (CNR-IRPI), Strada delle Cacce 73, 10135 Torino, Italy)

Abstract

Both in the literature and in practical applications, several works have dealt with rockfall analysis and the planning of mitigation measures. It is also possible to find inventories and papers that describe historical events. However, it is challenging to find methodologies or studies about inventorying rockfall mitigation or their efficiency over time. In Italy, many rockfall barriers and other mitigation solutions have been built in the last decades, and one of the most urgent problems is their correct management and maintenance. Lauria, a small town in southern Italy, can be considered an example of this common condition exacerbated by a wildfire in 2017. This work presents a methodology for assessing rockfall risk and creating a geodatabase of mitigation structures focused on small communities. We used digitalization of archival sources to reconstruct and geocode the record of mitigation works. An available database of historical landslides was used to reconstruct the most relevant rockfall events. Moreover, we coupled this with Sentinel-2 images and high-resolution orthophotos to map the wildfire area. Data obtained from the UAV-LiDAR survey were used to map the mitigation structures. The aim was to create a reliable state-of-the-art method, described in an operational monograph, to be used by experts for the design of new rockfall mitigation structures in both an affordable and efficient way. Moreover, we created a simple webGIS and a 3-D interactive view, helpful in disseminating rockfall hazards and mitigation strategies among the population at risk.

Suggested Citation

  • Davide Notti & Diego Guenzi & Rosa Lasaponara & Daniele Giordan, 2022. "Merging Historical Archives with Remote Sensing Data: A Methodology to Improve Rockfall Mitigation Strategy for Small Communities," Land, MDPI, vol. 11(11), pages 1-18, November.
  • Handle: RePEc:gam:jlands:v:11:y:2022:i:11:p:1951-:d:960250
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    References listed on IDEAS

    as
    1. Laura Turconi & Domenico Tropeano & Gabriele Savio & Barbara Bono & Sunil Kumar De & Marco Frasca & Fabio Luino, 2022. "Torrential Hazard Prevention in Alpine Small Basin through Historical, Empirical and Geomorphological Cross Analysis in NW Italy," Land, MDPI, vol. 11(5), pages 1-24, May.
    2. M. Cignetti & D. Godone & D. Bertolo & M. Paganone & P. Thuegaz & D. Giordan, 2021. "Rockfall susceptibility along the regional road network of Aosta Valley Region (northwestern Italy)," Journal of Maps, Taylor & Francis Journals, vol. 17(3), pages 54-64, June.
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