Integrating social vulnerability into high-resolution global flood risk mapping
Abstract High-resolution global flood risk maps are increasingly used to inform disaster risk planning and response, particularly in lower income countries with limited data or capacity. However, current approaches do not adequately account for spatial variation in social vulnerability, which is a k...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-04-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-47394-2 |
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| _version_ | 1823861788163178496 |
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| author | Sean Fox Felix Agyemang Laurence Hawker Jeffrey Neal |
| author_facet | Sean Fox Felix Agyemang Laurence Hawker Jeffrey Neal |
| author_sort | Sean Fox |
| collection | DOAJ |
| description | Abstract High-resolution global flood risk maps are increasingly used to inform disaster risk planning and response, particularly in lower income countries with limited data or capacity. However, current approaches do not adequately account for spatial variation in social vulnerability, which is a key determinant of variation in outcomes for exposed populations. Here we integrate annual average exceedance probability estimates from a high-resolution fluvial flood model with gridded population and poverty data to create a global vulnerability-adjusted risk index for flooding (VARI Flood) at 90-meter resolution. The index provides estimates of relative risk within or between countries and changes how we understand the geography of risk by identifying ‘hotspots’ characterised by high population density and high levels of social vulnerability. This approach, which emphasises risks to human well-being, could be used as a complement to traditional population or asset-centred approaches. |
| format | Article |
| id | doaj-art-29839141c3ff454d9674c6a62eebbcf9 |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2024-04-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-29839141c3ff454d9674c6a62eebbcf92025-02-09T12:43:46ZengNature PortfolioNature Communications2041-17232024-04-0115111010.1038/s41467-024-47394-2Integrating social vulnerability into high-resolution global flood risk mappingSean Fox0Felix Agyemang1Laurence Hawker2Jeffrey Neal3School of Geographical Sciences & Cabot Institute, University of BristolDepartment of Planning, Property & Environmental Management, University of ManchesterSchool of Geographical Sciences & Cabot Institute, University of BristolSchool of Geographical Sciences & Cabot Institute, University of BristolAbstract High-resolution global flood risk maps are increasingly used to inform disaster risk planning and response, particularly in lower income countries with limited data or capacity. However, current approaches do not adequately account for spatial variation in social vulnerability, which is a key determinant of variation in outcomes for exposed populations. Here we integrate annual average exceedance probability estimates from a high-resolution fluvial flood model with gridded population and poverty data to create a global vulnerability-adjusted risk index for flooding (VARI Flood) at 90-meter resolution. The index provides estimates of relative risk within or between countries and changes how we understand the geography of risk by identifying ‘hotspots’ characterised by high population density and high levels of social vulnerability. This approach, which emphasises risks to human well-being, could be used as a complement to traditional population or asset-centred approaches.https://doi.org/10.1038/s41467-024-47394-2 |
| spellingShingle | Sean Fox Felix Agyemang Laurence Hawker Jeffrey Neal Integrating social vulnerability into high-resolution global flood risk mapping Nature Communications |
| title | Integrating social vulnerability into high-resolution global flood risk mapping |
| title_full | Integrating social vulnerability into high-resolution global flood risk mapping |
| title_fullStr | Integrating social vulnerability into high-resolution global flood risk mapping |
| title_full_unstemmed | Integrating social vulnerability into high-resolution global flood risk mapping |
| title_short | Integrating social vulnerability into high-resolution global flood risk mapping |
| title_sort | integrating social vulnerability into high resolution global flood risk mapping |
| url | https://doi.org/10.1038/s41467-024-47394-2 |
| work_keys_str_mv | AT seanfox integratingsocialvulnerabilityintohighresolutionglobalfloodriskmapping AT felixagyemang integratingsocialvulnerabilityintohighresolutionglobalfloodriskmapping AT laurencehawker integratingsocialvulnerabilityintohighresolutionglobalfloodriskmapping AT jeffreyneal integratingsocialvulnerabilityintohighresolutionglobalfloodriskmapping |