Table 1 Data source

DEM

ALOS PALSAR

https://asf.alaska.edu/data-sets/derived-data-sets/alos-palsar-rtc/alos-palsar-radiometric-terrain-correction/

12.5 m*12.5 m

Land cover data

Global land cover map data products

http://data.ess.tsinghua.edu.cn/

10 m*10 m

Spatial distribution of disaster points

Data Center for Resources and Environmental Sciences, Chinese Academy of Sciences

http://www.resdc.cn/

–

Landsat-8 OLI remote sensing image

USGS

https://earthexplorer.usgs.gov/

30 m*30 m

Building information

OpenStreetMap

https://www.openstreetmap.org

–

2020–2021 Field survey data

Debris flow disaster site

–