Case Studies

Change detection - Geotechnical Hazard Inventory

Location: Quijos River, Ecuadorian Amazon

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This Project aimed to analyze geomorphological changes along a section of Quijos river in the ecuadorian Amazon. Andes Geo integrated visual interpretation with normalized difference vegetation index (NDVI) and no parametric statistical analysis (Mann-Kendall) to detect geomorphological changes related to landslides and river channel processes following retrogressive landsliding. The specific scope of this work included:

  • Create a geohazards inventory, including geotechnical and hydrotechnical processes.
  • Map geomorphological units and fluvial processes before and after the retrogressive landsliding events.
  • Identify and quantify geomorphological change and erosive processes applying geographical information system tools