Typhoon rainstorm landslide early warning method considering extreme rainfall and environmental variables

According to the typhoon rainstorm landslide early warning method considering extreme rainfall and environmental variables, the influence of different rainfall recurrence periods is considered in landslide risk early warning for the first time, coupling analysis is carried out on landslide topographic factors (DEM) and rainfall time probability (recurrence periods), and based on a physical model FSLAM, the landslide risk early warning is carried out. Meanwhile, the influence of two conditions of early rainfall and extreme rainfall on the landslide stability is considered, and the response sensitivity degree of grids on the two different conditions of early rainfall and extreme rainfall is analyzed based on a landslide risk judgment matrix. And influences of unconditionally stable and unconditionally unstable areas are considered, so that landslide early warning considering multi-time scale rainfall infiltration is realized. Regional scale landslide risk early warning can be carried out more reasonably and eff