Landslide surface motion map

Landslide surface motion map

Surface velocity (in the horizontal plane) maps of landslides extracted from multispectral (Sentinel-2 /Pléiades) image times series, at a weekly to yearly time frequency. The product is suited to document changes in motion of large landslides, at the scale of individual slopes or at the scale of a region. The velocity map is produced using image matching techniques (sub-pixel image correlation) applied to multispectral imagery.

  • Keywords: Landslide, Surface motion, Hazard and risk management
  • Product description:
    • Data source: Sentinel-2 / Pléiades
    • Update frequency: week to year, according to the landslide velocity
    • Spatial resolution: 10 m (Sentinel-2), 0.7 m (Pléiades)
    • Area of interest: user-defined
    • Time window: user-defined, at least 2 dates
    • Computing mode: on-demand mode or survey mode
    • Results: surface motion (expressed in terms of vector direction and vector amplitude) and associated uncertainty estimation
    • Access to results: A2S catalogue
  • Contact: Jean-Philippe
  • Collection:
Alps / Aiguilles Alps / Harmallière Alps / Poche