Data integration for rapid flood mapping and impact assessment
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- FLOODrisk2020 [93]
Abstract
Efficient flood disaster response and recovery need rapid flood mapping and impact assessments. Increasing amounts of data are available in near real-time from a growing diversity of sensors and data sources. Therefore we need to improve our capabilities of extracting and integrating knowledge from heterogeneous data sources. Using the June flood 2013 in Dresden as a use case, this study investigates whether the combination of multiple data sources provides more reliable and more accurate inundation depths maps for rapid flood impact assessments. In this example, we use remote sensing-based flood masks, water level observation and inundation depth-estimates extracted from photos shared in social media streams for inundation mapping. We assess the reliability and accuracy of the inundation maps and compare them with a combined multi-source inundation map as well as an official reference map. The results indicate that the combination of different data sources helps to close gaps in individual data sources. Further, it has a compensatory effect, which results in more reliable and more accurate inundation maps.- Title
- Data integration for rapid flood mapping and impact assessment
- Author
- Schröter, Kai
- Lüdtke, Stefan
- Eggert, Daniel
- Kreibich, Heidi
- Merz, Bruno
- Date of issue
- 2021
- Access level
- Open access
- Copyright owner
- Full or partial reprint or use of the papers is encouraged, subject to due acknowledgement of the authors and its publication in these proceedings. The copyright of the research resides with the authors of the paper, with the FLOODrisk consortium.
- Conference title
- FLOODrisk 2020 - 4th European Conference on Flood Risk Management
- Conference place
- Online
- Conference date
- 2021.06.22-2021.06.24
- Language
- en
- Subject
- flood mapping, rapid impact assessment, data science methods
- Version
- Kiadói változat
- Identifiers
- DOI: 10.3311/FloodRisk2020.3.8
- Title of the container document
- Science and practice for an uncertain future
- Document type
- könyvfejezet
- Document genre
- Konferenciacikk