Consiglio Nazionale delle Ricerche

Tipo di prodottoArticolo in rivista
TitoloLandslides in a changing climate
Anno di pubblicazione2016
Autore/iGariano S.L. (a,b), Guzzetti F. (a)
Affiliazioni autoriCNR IRPI, via della Madonna Alta 126, 06128 Perugia, Italy b Università degli Studi di Perugia, Department of Physics and Geology, via A. Pascoli, 06123 Perugia, Italy
Autori CNR e affiliazioni
  • inglese
AbstractWarming of the Earth climate system is unequivocal. That climate changes affect the stability of natural and engineered slopes and have consequences on landslides, is also undisputable. Less clear is the type, extent, magnitude and direction of the changes in the stability conditions, and on the location, abundance, activity and frequency of landslides in response to the projected climate changes. Climate and landslides act at only partially overlapping spatial and temporal scales, complicating the evaluation of the climate impacts on landslides. We review the literature on landslide-climate studies, and find a bias in their geographical distribution, with large parts of the world not investigated. We recommend to fill the gap with new studies in Asia, South America, and Africa. We examine advantages and limits of the approaches adopted to evaluate the effects of climate variations on landslides, including prospective modelling and retrospective methods that use landslide and climate records. We consider changes in temperature, precipitation, wind and weather systems, and their direct and indirect effects on the stability of single slopes, and we use a probabilistic landslide hazard model to appraise regional landslide changes. Our review indicates that the modelling results of landslide-climate studies depend more on the emission scenarios, the Global Circulation Models, and the methods to downscale the climate variables, than on the description of the variables controlling slope processes. We advocate for constructing ensembles of projections based on a range of emissions scenarios, and to use carefully results from worst-case scenarios that may over/under-estimate landslide hazards and risk. We further advocate that uncertainties in the landslide projections must be quantified and communicated to decision makers and the public. We perform a preliminary global assessment of the future landslide impact, and we present a global map of the projected impact of climate change on landslide activity and abundance. Where global warming is expected to increase the frequency and intensity of severe rainfall events, a primary trigger of rapid-moving landslides that cause many landslide fatalities, we predict an increase in the number of people exposed to landslide risk. Finally, we give recommendations for landslide adaptation and risk reduction strategies in the framework of a warming climate.
Lingua abstractinglese
Altro abstract-
Lingua altro abstract-
Pagine da227
Pagine a252
Pagine totali-
RivistaEarth-science reviews
Attiva dal 1966
Editore: Elsevier - Oxford ;
Paese di pubblicazione: Paesi Bassi
Lingua: inglese
ISSN: 0012-8252
Titolo chiave: Earth-science reviews
Titolo proprio: Earth-science reviews.
Titolo abbreviato: Earth-sci. rev.
Numero volume della rivista162
Fascicolo della rivista-
Verificato da refereeSì: Internazionale
Stato della pubblicazionePublished version
Indicizzazione (in banche dati controllate)
  • Scopus (Codice:2-s2.0-84989935664)
  • ISI Web of Science (WOS) (Codice:000388776700012)
Parole chiaveClimate change; Landslide; Climate variables; Modelling; Hazard; Risk
Link (URL, URI)
Titolo parallelo-
LicenzaOpen access
Scadenza embargo-
Data di accettazione27/08/2016
Note/Altre informazioni-
Strutture CNR
  • IRPI — Istituto di ricerca per la protezione idrogeologica
Moduli/Attività/Sottoprogetti CNR
  • TA.P05.006.002 : Valutazione del rischio posto da fenomeni geo-idrologici e sviluppo di strategie di mitigazione
Progetti Europei-
Landslides in a changing climate (documento privato )
Descrizione: Pdf file of the journal article
Tipo documento: application/pdf