Assessment of shallow landslide risk mitigation measures based on land use planning through probabilistic modelling   总被引：1，自引：0，他引：1  

Jorge Pedro Galve  Andrea Cevasco  Pierluigi Brandolini  Mauro Soldati 《Landslides》2015,12(1):101-114

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Comparison of statistical methods and multi-time validation for the determination of the shallow landslide rainfall thresholds     

Yuri Galanti  Michele Barsanti  Andrea Cevasco  Giacomo D’Amato Avanzi  Roberto Giannecchini 《Landslides》2018,15(5):937-952

Shallow landslides are unforeseeable phenomena often resulting in critical conditions in terms of people’s safety and damage. The main purpose of this paper is the comparison of different statistical methods used to determine the rainfall thresholds for the shallow landslide occurrence. Rainfall data over a 46-year period were collected for one rain gauge located in a test area of northwest Italy (Riviera Spezzina; RS). In the RS, intense rainfalls often induce shallow landslides causing damage and sometimes casualties. The rainfall events occurred in the 1967–2006 period were classified as events inducing shallow landslides (SLEs_1967–2006) and events that did not trigger shallow landslides (NSLEs_1967–2006). Thresholds for various percentiles of SLEs_1967–2006 were computed by identifying the lower limit above which shallow landslides occurred. Another set of thresholds, corresponding to different probabilities of occurrence, was determined using SLEs_1967–2006 and NSLEs_1967–2006. The least-squares linear fit (LSF) and the quantile regression (QR) techniques were employed in the former approach, while the logistic regression (LR) was applied in the latter. The thresholds were validated with the same data used for their definition and with the data recorded in the 2008–2014 period. Contingency tables were created and contingencies and skill scores were computed. The 10% probability threshold obtained using the LR method is characterized by the best values of at least two skill scores for both periods considered; therefore, it may be considered the “best” threshold for the RS. The results of this work can help the choice of the best statistical method to determine the shallow landslide rainfall thresholds.  相似文献   

On the efficiency and effectiveness of automatic deep drainage systems during an extreme rainfall event: the Mendatica landslide case study (western Liguria,Italy)     

Pepe  Giacomo  Cevasco  Andrea  Piazza  Michele  Macciò  Roberto  Arrighetti  Fabio  Casagli  Nicola 《Landslides》2021,18(12):3799-3820

Landslides - This study presents the employment of automatic deep drainage systems to stabilize the Mendatica landslide, one of the largest relict landslides of western Liguria (north-western...  相似文献