23/12/2021
Landslide mapping: assessing geological hazards using drones
When a 14 meter fissure appeared on a hillside in the Georgian capital, geological experts deployed the senseFly eBee X drone to study the landslide and help assess reinforcement operations with an aerial survey of the high-risk area.
Project Details
| Type of mission – Disaster management | Outputs – Orthomosaic, DSM |
| Area – 2,523 km2 / 252 ha / 623 ac | Total images – 889 |
| Drone – eBee X with Aeria X | Processing time – 4h30 |
| Accuracy – 1.6 cm / 0.6 in | Processing software – PIX4Dmapper |
| RTK/PPK – Yes | Location – Tbilisi (Georgia) |
| Flights needed – 2 | Data provided by – Vitali Machavariani, Georgian National Environmental Agency |
In March 2021 the earth broke open on the Vashlijvari slope, a hillside located near a road connecting two residential areas of Tbilisi, Georgia’s capital. The colossal size of the cracking – 14 meters deep and around half a million cubic meters of torn landmass – alerted experts to respond quickly in order to prevent the width from increasing and the slope from sliding off completely.