Social vulnerability assessment of flood risk using GIS-based multicriteria decision analysis. A case study of Vila Nova de Gaia (Portugal)
Over the last decade, flood disasters have affected millions of people and caused massive economic losses. Social vulnerability assessment uses a combination of several factors to represent a population's differential access to resources and its ability to cope with and respond to hazards. In t...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2016-07-01
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| Series: | Geomatics, Natural Hazards & Risk |
| Online Access: | http://dx.doi.org/10.1080/19475705.2015.1052021 |
| _version_ | 1811284247043899392 |
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| author | Paulo Fernandez Sandra Mourato Madalena Moreira |
| author_facet | Paulo Fernandez Sandra Mourato Madalena Moreira |
| author_sort | Paulo Fernandez |
| collection | DOAJ |
| description | Over the last decade, flood disasters have affected millions of people and caused massive economic losses. Social vulnerability assessment uses a combination of several factors to represent a population's differential access to resources and its ability to cope with and respond to hazards. In this paper, social vulnerability assessment to flood risk was applied to the third most populous Portuguese municipality. The study was developed at the neighbourhood level, allowing for social vulnerability analysis at inter civil parish, intra civil parish, and municipality scales. A geographic information system-based multicriteria decision analysis (GIS-MCDA) was applied to social vulnerability and allows for an increased understanding and improved monitoring of social vulnerability over space, identifying ‘hot spots’ that require adaptation policies. Mafamude, Oliveira do Douro, Vila Nova de Gaia, and Avintes civil parishes display the greatest vulnerability to flooding. According to the most pessimistic scenario 57%–68% of the area of these civil parishes is classed at a high or very high level of social vulnerability. The GIS-MCDA helps to assess what and who is at risk, and where targeted impact-reduction strategies should be implemented. The results demonstrate the importance of an urban-scale approach instead of a river basin scale to urban flood risk management plans. |
| first_indexed | 2024-04-13T02:26:38Z |
| format | Article |
| id | doaj.art-71a27c1d7f164b1d90de66b8e05cc1e6 |
| institution | Directory Open Access Journal |
| issn | 1947-5705 1947-5713 |
| language | English |
| last_indexed | 2024-04-13T02:26:38Z |
| publishDate | 2016-07-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Geomatics, Natural Hazards & Risk |
| spelling | doaj.art-71a27c1d7f164b1d90de66b8e05cc1e62022-12-22T03:06:46ZengTaylor & Francis GroupGeomatics, Natural Hazards & Risk1947-57051947-57132016-07-01741367138910.1080/19475705.2015.10520211052021Social vulnerability assessment of flood risk using GIS-based multicriteria decision analysis. A case study of Vila Nova de Gaia (Portugal)Paulo Fernandez0Sandra Mourato1Madalena Moreira2Universidade de Évora, Pólo da Mitra, Ap. 94, 7002-554, Évora, Portugal e Instituto Politécnico de Castelo Branco – Escola Superior AgráriaUniversidade de Évora, Pólo da Mitra, Ap. 94, 7002-554, Évora, Portugal e Instituto Politécnico de Leiria – Escola Superior de Tecnologia e GestãoUniversidade de ÉvoraOver the last decade, flood disasters have affected millions of people and caused massive economic losses. Social vulnerability assessment uses a combination of several factors to represent a population's differential access to resources and its ability to cope with and respond to hazards. In this paper, social vulnerability assessment to flood risk was applied to the third most populous Portuguese municipality. The study was developed at the neighbourhood level, allowing for social vulnerability analysis at inter civil parish, intra civil parish, and municipality scales. A geographic information system-based multicriteria decision analysis (GIS-MCDA) was applied to social vulnerability and allows for an increased understanding and improved monitoring of social vulnerability over space, identifying ‘hot spots’ that require adaptation policies. Mafamude, Oliveira do Douro, Vila Nova de Gaia, and Avintes civil parishes display the greatest vulnerability to flooding. According to the most pessimistic scenario 57%–68% of the area of these civil parishes is classed at a high or very high level of social vulnerability. The GIS-MCDA helps to assess what and who is at risk, and where targeted impact-reduction strategies should be implemented. The results demonstrate the importance of an urban-scale approach instead of a river basin scale to urban flood risk management plans.http://dx.doi.org/10.1080/19475705.2015.1052021 |
| spellingShingle | Paulo Fernandez Sandra Mourato Madalena Moreira Social vulnerability assessment of flood risk using GIS-based multicriteria decision analysis. A case study of Vila Nova de Gaia (Portugal) Geomatics, Natural Hazards & Risk |
| title | Social vulnerability assessment of flood risk using GIS-based multicriteria decision analysis. A case study of Vila Nova de Gaia (Portugal) |
| title_full | Social vulnerability assessment of flood risk using GIS-based multicriteria decision analysis. A case study of Vila Nova de Gaia (Portugal) |
| title_fullStr | Social vulnerability assessment of flood risk using GIS-based multicriteria decision analysis. A case study of Vila Nova de Gaia (Portugal) |
| title_full_unstemmed | Social vulnerability assessment of flood risk using GIS-based multicriteria decision analysis. A case study of Vila Nova de Gaia (Portugal) |
| title_short | Social vulnerability assessment of flood risk using GIS-based multicriteria decision analysis. A case study of Vila Nova de Gaia (Portugal) |
| title_sort | social vulnerability assessment of flood risk using gis based multicriteria decision analysis a case study of vila nova de gaia portugal |
| url | http://dx.doi.org/10.1080/19475705.2015.1052021 |
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