“…Compared with the physical model tests, the field investigation, for example, surface mapping, subsurface exploration, and field monitoring, involves the real boundary condition and provides valuable information related to slope failure (e.g., Li et al, 2020). Conventional field investigation approaches are time and cost‐consuming, remote sensing techniques have attracted more and more attention in recent studies of geohazards, for example, laser scanning (e.g., Francioni et al, 2014), unmanned aerial vehicle (e.g., Beregovoi et al, 2017), and satellite remote sensing (e.g., Yang et al, 2019). For example, Sentinel‐2 provides high spatial and temporal resolution satellite data for disaster monitoring including surface movement of landslides (Phiri et al, 2020).…”