Spatial Decision Support · PostGIS + MVT
Crisis Access: Exposure Analysis
Evaluates potential infrastructure exposure. The platform automatically intersects published Copernicus EMS observed hazard boundaries with the baselayer products (transport, utility, and settlement layers), generating impact statistics.
SAMPLE DERIVED METRICS · EMSR920 AOI 01
POSTGIS SPATIAL OVERLAY
| Baseline Asset | Database Operation | Calculated Impact |
|---|---|---|
| Road Network (OSM) | ST_Intersection(roads, hazard) |
34.2 km submerged |
| Building Footprints | COUNT(b.id) WHERE ST_Intersects(...) |
142 structures affected |
| Agricultural Land | ST_Area(ST_Intersection(...)) |
1,820 ha inundated |
01 / INGEST
API Integration
Polls CEMS OpenAPI feeds upon activation baselayer products and stores hazard geometries into relational PostGIS schemas.
02 / COMPUTE
Server-Side Analysis
Executes spatial intersections inside PostgreSQL, bypassing slow client-side geometry processing.
03 / STREAM
Disk-Cached MVT
Slices features into Mapbox Vector Tiles, writing to local disk cache for instant OpenLayers rendering.