Multi-scale characterization of flood risk components: a case study at the municipal level

• Type: Article in International Conference Proceedings Book
• Date: 2023

Authors

Santos, Pedro Pinto (Author) Other; Pereira, Susana (Author) FLUP; Ferreira, Tiago Miguel (Author) Other; Xofi, Maria (Author) Other; Domingues, José Carlos (Author) Other; Pais, Carolina (Author) Other; Oliveira, Sérgio Cruz (Author) Other; Garcia, Ricardo A. C. (Author) Other; Reis, Eusébio (Author) Other; Zêzere, José Luís (Author) Other; Lourenço, Paulo B. (Author) Other

Conference proceedings International

Title: Advances in Natural Hazards and Volcanic Risks: Shaping a Sustainable Future / Proceedings of the 3rd International Workshop on Natural Hazards (NATHAZ’22), Terceira Island - Azores 2022

Pages: 133-137

3rd International Workshop on Natural Hazards (NATHAZ’22)

Terceira Island - Azores 2022, 2022

Indexing

Scopus

Crossref

Other information

DOI: 10.1007/978-3-031-25042-2_24

Abstract (EN): Floods are complex processes that combine local and global factors, causing recurrent and significant human and material losses worldwide. The presented research consists of a multi-scale flood risk assessment process based on data sources collected at distinct scales, expressing hazard, exposure and physical vulnerability of buildings. Detailed Census-derived parameters are essential in representing exposure and vulnerability, while flood hazard is quantified from geomorphologically validated susceptibility maps combined with historical data that characterize events’ magnitude and frequency. The results allow a cross-scale analysis of risk, from the building to the municipality level, by identifying exposed populations, buildings, and physical vulnerability. The Lisbon Metropolitan Area is a highly contrasting territory regarding flood risk: some areas are susceptible to slow-onset floods in extensive floodplains but with low exposure, while densely urbanized areas are susceptible to flash floods in small watersheds. While the building level assessment is valuable for local civil protection and urban planning, municipal-level indices provide a comparable inter-municipal perspective of flood risk.

Language: English

Type (Professor's evaluation): Scientific