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Published VersionCC BY V4.0, Open Access
Journal article
Mapping current and future flood exposure using a 5 m flood model and climate change projections
Natural Hazards and Earth System Sciences, Vol.24, pp.699-714
2024
Abstract
Local stakeholders need information about areas exposed to potential flooding to manage increasing disaster risk. Moderate- and large-scale flood hazard mapping is often produced at a low spatial resolution, typically using only one source of flooding (e.g., riverine), and it often fails to include climate change. This article assesses flood hazard exposure in the city of Vancouver, Canada, using flood mapping produced by flood risk science experts JBA Risk Management, which represented baseline exposure at 5 m spatial resolution and incorporated climate-change-adjusted values based on different greenhouse gas emission scenarios. The article identifies areas of both current and future flood exposure in the built environment, differentiating between sources of flooding (fluvial, pluvial, storm surge) and climate change scenarios. The case study demonstrates the utility of a flood model with a moderate resolution for informing planning, policy development, and public education. Without recent engineered or regulatory mapping available in all areas across Canada, this model provides a mechanism for identifying possible present and future flood risk at a higher resolution than is available at a Canada-wide coverage.
Details
- Title
- Mapping current and future flood exposure using a 5 m flood model and climate change projections
- Authors
- Connor Darlington - University of WaterlooJonathan Raikes (Corresponding Author) - University of the Sunshine Coast, Queensland, Sustainability Research ClusterDaniel Henstra - University of WaterlooJason Thistlethwaite - University of WaterlooEmma K. Raven - JBA Risk Management (United Kingdom)
- Publication details
- Natural Hazards and Earth System Sciences, Vol.24, pp.699-714
- Publisher
- Copernicus GmbH
- Date published
- 2024
- DOI
- 10.5194/nhess-24-699-2024
- ISSN
- 1684-9981; 1561-8633
- Copyright note
- © Author(s) 2024. This work is distributed under the Creative Commons Attribution 4.0 License.
- Data Availability
- MCBF data can be found on GitHub (https:// github.com/microsoft/CanadianBuildingFootprints; MCBF, 2019). Access to the JBA (2022) flood data used in this research can be made available upon reasonable request to JBA Risk Management.
- Organisation Unit
- School of Law and Society; Sustainability Research Cluster
- Language
- English
- Record Identifier
- 991014497202621
- Output Type
- Journal article
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- Domestic collaboration
- International collaboration
- Web Of Science research areas
- Geosciences, Multidisciplinary
- Meteorology & Atmospheric Sciences
- Water Resources
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