Landslide activity map

Landslide activity map

Map of unstable slopes extracted from the mining of stacks of surface motion grids calculated from multispectral (Sentinel-2 /Pléiades) image times series, at a weekly to yearly time frequency. The product is suited to detect and inventory the portion of a territory affected by surface motion, at the scale of individual slopes or at the scale of a region. The landslide activity map is produced from the application of Multiple Pairwise Image Correlation approach on multispectral imagery.

  • Keywords: Landslide, Surface motion, Inventory, Hazard and risk management
  • Product description:
    • Data source: Sentinel-2 / Pléiades
    • Update frequency: post-seismic event
    • Spatial resolution: 10 m (Sentinel-2), 0.7 m (Pléiades)
    • Area of interest: user-defined, at least one Sentinel-2 tile
    • Time window: user-defined
    • Computing mode: on-demand mode or survey mode
    • Results: landslide activity (expressed in terms of frequency of terrain above a velocity threshold)
    • Access to results: A2S catalogue
  • Contact: Jean-Philippe
  • Collection:
Alps / Ubaye