Experimentation with the use of EGMS and IRIDE satellite data

The objectives of the experiment were the following:

• Evaluation of continuous ground motion from satellite data (European Ground Motion Service for the period 2019-2023 and IRIDE for 2024);
• Analysis of different types of landslides (active landslides, dormant landslides, landslide-prone areas, subsidence);
• Identification of elements for the Emergency Limit Condition (CLE) analysis near areas affected by specific ground motions derived from satellite data in the period 2019-2024
• Identification of buildings in the municipality of Perugia near areas affected by specific ground motions derived from satellite data in the period 2019-2024
• Submission of the results to all regional offices that authorize, evaluate, design, or schedule interventions on the territory and to the regional civil protection agency.

QGIS version 3.42 software was used for the experiment.

The following databases were imported into QGIS:

• European Ground Motion Service satellite data.
• IRIDE satellite data – Cross Monitoring of Ground Motion and "Hot Spots" of Cover Change.
• PAI geomorphological landslide hazard maps.
• Local Seismic Hazard Map of the Umbria Region.
• Umbria Region Emergency Limit Condition Analysis (CLE) maps.
• Geological Map of the Umbria Region.
• Building database of the Umbria Region's land registry system for the Municipality of Perugia.
• Administrative Boundaries of the Umbria Region and base maps such as the Regional Technical Map and Google Satellite.

Spatial analyses were performed using the GIS on the collected data to homogenize and select specific information useful for subsequent processing.

Multiple analyses werw performed for 2 specific case studies.

All objectives were achieved: assessment of continuous ground motion from satellite data (two different databases: IRIDE for 2024 and EGMS 2019-2023); subsequent analysis using different types of landslides (active landslides, dormant landslides, landslide-prone areas, subsidence); subsequent assessment using the CLE (Emergency Limit Condition) elements; subsequent assessment using buildings in the Municipality of Perugia.