Open Data and AI-Driven Geospatial Analysis: Scaling Risk Assessment of Post-Flood Emergency Grants to the Full Population
On 29 October 2024, a DANA — a Spanish acronym for an isolated upper-level atmospheric depression forming over the Mediterranean Sea — triggered catastrophic flash flooding across Valencia province, Spain. Within hours, several municipalities received severe rainfall equivalent to an entire year’s precipitation, with peaks of up to 771 litres per square metre, devastating entire towns, leaving thousands stranded, damaging over 60,000 dwellings, destroying more than 130,000 vehicles, and claiming 230 lives.