Consiglio Nazionale delle Ricerche

Tipo di prodottoArticolo in rivista
TitoloMechanisms and frequency-size statistics of failures characterizing a coastal cliff partially protected from the wave erosive action
Anno di pubblicazione2020
  • Elettronico
  • Cartaceo
Autore/iEsposito, Giuseppe; Matano, Fabio; Sacchi, Marco; Salvini, Riccardo
Affiliazioni autoriCNR IRPI; CNR ISMAR; Università Siena
Autori CNR e affiliazioni
  • inglese
AbstractLandslides and surface erosion are major processes controlling the progressive recession of many rocky cliffs along the Italian coastline. Nevertheless, many coastal settlements were built along cliffed sectors prone to rapid collapses. This represents a serious risk for tourists and living people, as well as for buildings, roads and railway networks. The densely urbanized coastline of the Campi Flegrei active volcanic district is one of the rocky coastal areas of South Italy mostly exposed to the recession. Here, coastal cliffs are made by volcaniclastic deposits and include remnants of ancient volcanic edifices formed in the last 15 ka. Due to petrographic, geotechnical and geostructural properties of volcaniclastic deposits, these cliffs have been affected by rapid recession since their origin. This research focuses on a cliff of the Campi Flegrei coastaline (Torrefumo, Monte di Procida) which, although currently protected from the sea waves by a seawall, is still retreating. We assessed the ongoing recession using a change detection analysis, based on accurate topographic data acquired with two terrestrial laser scanning surveys executed in 2013 and 2016. The quantitative comparison of 3D point clouds datasets allowed detecting 191 cliff failures. We verified that the frequency-magnitude distribution of the detached blocks followed an inverse power law, and most of the involved volumes were between 0.01 and 1 m(3). Retreat rates of different cliff sectors varied from 0.001 to 0.025 m/year. Our analysis also allowed us to recognize slope failure mechanisms and distinguish rock falls from grain-by-grain surficial erosion.
Lingua abstractinglese
Altro abstract-
Lingua altro abstract-
Pagine da-
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Pagine totali14
RivistaRendiconti lincei. Scienze fisiche e naturali
Attiva dal 2008
Editore: Springer Verlag Italia - Milano
Paese di pubblicazione: Italia
Lingua: inglese
ISSN: 2037-4631
Titolo chiave: Rendiconti lincei. Scienze fisiche e naturali
Titolo proprio: Rendiconti lincei. Scienze fisiche e naturali.
Titolo abbreviato: Rend. lincei, Sci. fis. nat.
Titolo alternativo: Rendiconti lincei
Numero volume della rivista31
Fascicolo della rivista2
Verificato da refereeSì: Internazionale
Stato della pubblicazionePublished version
Indicizzazione (in banche dati controllate)
  • ISI Web of Science (WOS) (Codice:000528093100001)
Parole chiaveTerrestrial laser scanning, Change detection, Coastal cliff, Rock fall, Erosion, Frequency-volume distribution
Link (URL, URI)
Titolo parallelo-
Scadenza embargo-
Data di accettazione15/04/2020
Note/Altre informazioni-
Strutture CNR
  • IRPI — Istituto di ricerca per la protezione idrogeologica
  • ISMAR — Istituto di scienze marine
Moduli/Attività/Sottoprogetti CNR-
Progetti Europei-