Machine Learning-Powered Landslide Forecasting: From Initiation to Mobility
Synopsis
Prompt prediction of landslide occurrence and movement in a future rainstorm is one of the most effective manners to cope with the increasing landslide risk in a changing climate. Despite the rapid development of many machine learning algorithms, most studies stay on landslide susceptibility mapping because of the challenging time-unknown and terrain-unmatched issues in landslide forecasting. This study proposes two novel machine learning strategies to predict the spatio-temporal distribution of landslides considering both initiation and mobility. Hong Kong is taken as an example to demonstrate the capacity of city-scale landslide forecasting using machine learning. The spatio-temporal evolution of both man-made slope failures and natural terrain landslides in a rainstorm can be well predicted using machine learning models, which can provide a powerful real-time decision-making tool for landslide early warning and risk management.
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