Continental Portuguese Territory Flood Susceptibility Index : contribution to a vulnerability index
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10451/28235 |
Resumo: | This work defines a national flood susceptibility index for the Portuguese continental territory, by proposing the aggregation of different variables which represent natural conditions for permeability, runoff and accumulation. This index is part of the national vulnerability index developed in the scope of Flood Maps in Climate Change Scenarios (CIRAC) project, supported by the Portuguese Association of Insurers (APS). This approach expands on previous works by trying to bridge the gap between different flood mechanisms (e.g. progressive and flash floods) occurring at different spatial scales in the Portuguese territory through (a) selecting homogeneously processed data sets and (b) aggregating their values to better translate the spatially continuous and cumulative influence in floods at multiple spatial scales. Results show a good ability to capture, in the higher susceptibility classes, different flood types: fluvial floods and flash floods. Lower values are usually related to mountainous areas, low water accumulation potential and more permeable soils. Validation with independent flood data sets confirmed these index characteristics, although some overestimation can be seen in the southern region of Alentejo where, due to a dense hydrographic network and an overall low slope, floods are not as frequent as a result of lower precipitation mean values. Future work will focus on (i) including extreme precipitation data sets to represent the triggering factor, (ii) improving representation of smaller and stepper basins, (iii) optimizing variable weight definition process and (iii) developing more robust independent flood validation data sets. |
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Continental Portuguese Territory Flood Susceptibility Index : contribution to a vulnerability indexflood Susceptibility Indexvulnerability indexContinental Portuguese TerritoryThis work defines a national flood susceptibility index for the Portuguese continental territory, by proposing the aggregation of different variables which represent natural conditions for permeability, runoff and accumulation. This index is part of the national vulnerability index developed in the scope of Flood Maps in Climate Change Scenarios (CIRAC) project, supported by the Portuguese Association of Insurers (APS). This approach expands on previous works by trying to bridge the gap between different flood mechanisms (e.g. progressive and flash floods) occurring at different spatial scales in the Portuguese territory through (a) selecting homogeneously processed data sets and (b) aggregating their values to better translate the spatially continuous and cumulative influence in floods at multiple spatial scales. Results show a good ability to capture, in the higher susceptibility classes, different flood types: fluvial floods and flash floods. Lower values are usually related to mountainous areas, low water accumulation potential and more permeable soils. Validation with independent flood data sets confirmed these index characteristics, although some overestimation can be seen in the southern region of Alentejo where, due to a dense hydrographic network and an overall low slope, floods are not as frequent as a result of lower precipitation mean values. Future work will focus on (i) including extreme precipitation data sets to represent the triggering factor, (ii) improving representation of smaller and stepper basins, (iii) optimizing variable weight definition process and (iii) developing more robust independent flood validation data sets.Copernicus PublicationsRepositório da Universidade de LisboaJacinto, RitaGrosso, N.Reis, EusébioDias, L.Santos, F. D.Garrett, P.2017-07-05T11:28:15Z20152015-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10451/28235engJacinto, R., Grosso, N., Reis, E., Dias, L., Santos, F. D., and Garrett, P.: Continental Portuguese Territory Flood Susceptibility Index – contribution to a vulnerability index, Nat. Hazards Earth Syst. Sci., 15, 1907-1919, doi:10.5194/nhess-15-1907-2015, 20151684-998110.5194/nhess-15-1907-2015info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-08T16:19:47Zoai:repositorio.ul.pt:10451/28235Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:44:29.211473Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Continental Portuguese Territory Flood Susceptibility Index : contribution to a vulnerability index |
title |
Continental Portuguese Territory Flood Susceptibility Index : contribution to a vulnerability index |
spellingShingle |
Continental Portuguese Territory Flood Susceptibility Index : contribution to a vulnerability index Jacinto, Rita flood Susceptibility Index vulnerability index Continental Portuguese Territory |
title_short |
Continental Portuguese Territory Flood Susceptibility Index : contribution to a vulnerability index |
title_full |
Continental Portuguese Territory Flood Susceptibility Index : contribution to a vulnerability index |
title_fullStr |
Continental Portuguese Territory Flood Susceptibility Index : contribution to a vulnerability index |
title_full_unstemmed |
Continental Portuguese Territory Flood Susceptibility Index : contribution to a vulnerability index |
title_sort |
Continental Portuguese Territory Flood Susceptibility Index : contribution to a vulnerability index |
author |
Jacinto, Rita |
author_facet |
Jacinto, Rita Grosso, N. Reis, Eusébio Dias, L. Santos, F. D. Garrett, P. |
author_role |
author |
author2 |
Grosso, N. Reis, Eusébio Dias, L. Santos, F. D. Garrett, P. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Repositório da Universidade de Lisboa |
dc.contributor.author.fl_str_mv |
Jacinto, Rita Grosso, N. Reis, Eusébio Dias, L. Santos, F. D. Garrett, P. |
dc.subject.por.fl_str_mv |
flood Susceptibility Index vulnerability index Continental Portuguese Territory |
topic |
flood Susceptibility Index vulnerability index Continental Portuguese Territory |
description |
This work defines a national flood susceptibility index for the Portuguese continental territory, by proposing the aggregation of different variables which represent natural conditions for permeability, runoff and accumulation. This index is part of the national vulnerability index developed in the scope of Flood Maps in Climate Change Scenarios (CIRAC) project, supported by the Portuguese Association of Insurers (APS). This approach expands on previous works by trying to bridge the gap between different flood mechanisms (e.g. progressive and flash floods) occurring at different spatial scales in the Portuguese territory through (a) selecting homogeneously processed data sets and (b) aggregating their values to better translate the spatially continuous and cumulative influence in floods at multiple spatial scales. Results show a good ability to capture, in the higher susceptibility classes, different flood types: fluvial floods and flash floods. Lower values are usually related to mountainous areas, low water accumulation potential and more permeable soils. Validation with independent flood data sets confirmed these index characteristics, although some overestimation can be seen in the southern region of Alentejo where, due to a dense hydrographic network and an overall low slope, floods are not as frequent as a result of lower precipitation mean values. Future work will focus on (i) including extreme precipitation data sets to represent the triggering factor, (ii) improving representation of smaller and stepper basins, (iii) optimizing variable weight definition process and (iii) developing more robust independent flood validation data sets. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015 2015-01-01T00:00:00Z 2017-07-05T11:28:15Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10451/28235 |
url |
http://hdl.handle.net/10451/28235 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Jacinto, R., Grosso, N., Reis, E., Dias, L., Santos, F. D., and Garrett, P.: Continental Portuguese Territory Flood Susceptibility Index – contribution to a vulnerability index, Nat. Hazards Earth Syst. Sci., 15, 1907-1919, doi:10.5194/nhess-15-1907-2015, 2015 1684-9981 10.5194/nhess-15-1907-2015 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Copernicus Publications |
publisher.none.fl_str_mv |
Copernicus Publications |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799134365753540608 |