Risco de inundações - uma metodologia para a sua cartografia

Sá, Luis Fazendeiro; Vicêncio, Henrique

doi:10.14195/1647-7723_18_20

Cited by 5 publications

(2 citation statements)

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“…This lack of accuracy in the assessment methods is more evident when comparing the methods to assess social resilience with, for instance, the methods to assess social vulnerability. The latter has far more applications in many countries around the world, namely in Portugal where this research is being conducted (Gall et al, 2015;Ilan Kelman et al, 2015;Rufat et al, 2017;Sá, Luis;Vicêncio, 2011). This paper addresses a scientific gap identified through bibliography reviews i.e.…”

Section: J O U R N a L P R E -P R O O Fmentioning

confidence: 99%

Indicators for the assessment of social resilience in flood-affected communities – A text mining-based methodology

Jacinto

Reis

Ferrão

2020

Science of The Total Environment

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This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

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Section: J O U R N a L P R E -P R O O Fmentioning

confidence: 99%

Indicators for the assessment of social resilience in flood-affected communities – A text mining-based methodology

Jacinto

Reis

Ferrão

2020

Science of The Total Environment

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“…There are limited academic works on flood vulnerability or susceptibility evaluation in Portugal. Sá and Vicêncio (2011) presented an approach for mapping flood risk and vulnerability for each municipality of the Portuguese continental territory, using information on the 100-year return period precipitation for each district (group of municipalities), urban land use percentage for each municipality (obtained from Corine Land Cover data), mean number of floods registered by the National Civil Protection Authority (ANPC), river length (in km) compared to the area of the municipality and the number of inhabitants in each municipality. Other academic work, for smaller study areas, analysed the vulnerability to floods in Águeda Municipality and used the floodable areas of the National Ecologic Reserve to represent susceptibility to floods (Figueiredo et al, 2009).…”

Section: State Of the Artmentioning

confidence: 99%

Continental Portuguese Territory Flood Susceptibility Index – contribution for a vulnerability index

Jacinto¹,

Grosso²,

Reis³

et al. 2014

Preprint

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Abstract. 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 floods mechanisms (e.g. progressive and flash floods) occurring at different spatial scales in the Portuguese territory through: (a) selecting homogeneously processed datasets, (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: progressive floods and flash floods. Lower values are usually related to: mountainous areas, low water accumulation potential and more permeable soils. Validation with independent flood datasets 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 datasets to represent the triggering factor, (ii) improving representation of smaller and stepper basins, (iii) optimizing variable weight definition process, (iii) developing more robust independent flood validation datasets.

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Damaging flood risk in the Portuguese municipalities

Santos

Pereira

Reis

et al. 2021

Understanding Disaster Risk

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Modeling and understanding the impact of climate change on flooding processes in Mediterranean climate areas, namely in southern Europe, is a complex endeavor, which must also consider exposure and vulnerability patterns. Assuming that vulnerability plays a relevant role in explaining the degree of loss due to natural hazards, the present research compares a flood-susceptibility index with a social-vulnerability index and a historical record of flood losses, both aggregated at the municipal level. The purpose of this research is to define municipal flood risk profiles that would rank the 278 municipalities and contribute to the strategic allocation of resources and flood risk management. A simplified method for assessing flood susceptibility for mainland Portugal was applied considering three inputs, highlighting the relevance of flooding past evidences: distribution of alluvial deposits, Floods Directive mapping and a 100-yr flood hazard map provided by LNEC. Further, the percentage of flood susceptible areas per municipalities was computed in order to obtain the municipal flood susceptibility rank. Social vulnerability at the municipal level was assessed combining the dimensions of criticality and support capability. Criticality refers to the individual and household characteristics that define the expected degree of loss and the ability to recover (e.g. age, education and income). Support capability refers to the territorial context in terms of civil protection, health, education and other infrastructure that contributes to reduce the flood impact and facilitate community's recovery. For each dimension, scores resulting from PCA were multiplied assuming that support capability acts as an attenuating factor of criticality. Historical losses caused by damaging floods were extracted from the DISASTER database, querying only the records related to floods collected for the period 1865-2015 in mainland Portugal that caused fatalities, injured, homeless and evacuated people. This work contributes to the discussion of the spectrum of combinations of flood susceptibility, social vulnerability and past flood disaster events at the municipal level. The highest scores of susceptibility (those above the 90 th percentile) are found on the 14 municipalities located along the downstream areas of the Vouga, Mondego and Tagus basins. These municipalities are also those where the highest number of cases and the highest impacts in terms of displaced and evacuated persons were registered in the historical record of flood losses. The municipalities along the Tagus and Sado rivers present high criticality and are among those with large portions of their territory with a high susceptibility index to floods (respectively, 9, 19 and 15%). Regarding support capability, the overlay of low scores with high susceptibility is found along the Tagus and Mondego basins. Considering the final score of social vulnerability, Chamusca and Coruche, in the lower Tagus basin, are the municipalities with simultaneously high scores and high susceptibil...

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Risco de inundações - uma metodologia para a sua cartografia

Cited by 5 publications

References 0 publications

Indicators for the assessment of social resilience in flood-affected communities – A text mining-based methodology

Indicators for the assessment of social resilience in flood-affected communities – A text mining-based methodology

Continental Portuguese Territory Flood Susceptibility Index – contribution for a vulnerability index

Damaging flood risk in the Portuguese municipalities

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