TY - JOUR PY - 2024// TI - Shifting from traditional landslide occurrence modeling to scenario estimation with a "glass-box" machine learning JO - Science of the total environment A1 - Caleca, Francesco A1 - Confuorto, Pierluigi A1 - Raspini, Federico A1 - Segoni, Samuele A1 - Tofani, Veronica A1 - Casagli, Nicola A1 - Moretti, Sandro SP - ePub EP - ePub VL - ePub IS - ePub N2 - Extreme rainfall events represent one of the main triggers of landslides. As climate change continues to reshape global weather patterns, the frequency and intensity of such events are increasing, amplifying landslide occurrences and associated threats to communities. In this contribution, we analyze relationships between landslide occurrence and extreme rainfall events by using a "glass-box" machine learning model, namely Explainable Boosting Machine. What sets these models as a "glass-box" technique is their exact intelligibility, offering transparent explanations for their predictions. We leverage these capabilities to model the landslide occurrence induced by an extreme rainfall event in the form of spatial probability (i.e., susceptibility). In doing so, we use the heavy rainfall event in the Misa River Basin (Central Italy) on September 15, 2022. Notably, we introduce a rainfall anomaly among our set of predictors to express the intensity of the event compared to past rainfall patterns. Spatial variable selection and model evaluation through random and spatial routines are incorporated into our protocol. Our findings highlight the critical role of the rainfall anomaly as the most important variable in modeling landslide susceptibility. Furthermore, we leverage the dynamic nature of such a variable to estimate landslide occurrence under different rainfall scenarios.
Language: en
LA - en SN - 0048-9697 UR - http://dx.doi.org/10.1016/j.scitotenv.2024.175277 ID - ref1 ER -