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Disaster & Flood

Dam-breach and downstream-inundation modelling

Dam-breach and downstream-inundation modelling
Derna dam-collapse flood — Libya — before / after

Dam operators and downstream communities need to know the reach of a breach — which villages, roads and bridges are in the path — before it happens, and to document it after. ETD's terrain engine models downstream flow over 1 m BaseDEM, and its imagery archive captures real breach events for validation and after-action assessment.

Before / after examples

Alau Dam collapse — Maiduguri, Nigeria
Alau Dam collapse — Maiduguri, Nigeria — before / after

ETD products for this

Flood Simulation

Elevation Map (BaseDEM)

Enhanced Visual