Estimation of exposed population to landslides and floods risk areas in Brazil, on an intra-urban scale

Dias, Mariane Carvalho de Assis; Saito, Silvia Midori; Alvalá, Regina Célia dos Santos; Stenner, Cláudio; Pinho, Gustavo; Nobre, Carlos A.; Fonseca, Maria Rita de Souza; Santos, Camilla Silva Motta dos; Amadeu, Pilar; Silva, Dennis; Lima, Cibele Oliveira; Ribeiro, Julia; Nascimento, Frederico; Corrêa, Clarissa de Oliveira

doi:10.1016/j.ijdrr.2018.06.002

Cited by 56 publications

(27 citation statements)

References 5 publications

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“…Em um estudo elaborado por Cutter, Boruff e Shirley (2003) sobre vulnerabilidade relacionada a riscos ambientais são demonstradas algumas perspectivas distintas que podem ser trabalhadas e que ainda são consideradas referências nos dias atuais, diante da problemática vivenciada pela sociedade no que diz respeito aos perigos e riscos socioambientais. O conhecimento sobre demografia populacional e as condições de vida em áreas de risco são cruciais para o gerenciamento de risco e resposta a desastres (DE ASSIS DIAS et al, 2018). Segundo Markovic et al (2017), a vulnerabilidade é descrita como uma função de três componentes: perigo, exposição/sensibilidade e capacidade adaptativa, sendo que essa última pode ser caracterizada como a capacidade de um sistema (indivíduo, sociedade, economia, infraestrutura etc.)…”

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Aplicação De Análise Multivariada Para a Construção De Indicadores Ambientais Na Relação Entre Precipitação E Deslizamentos

Bosco

Cardoso

Young

2019

Rev. Bras. Ciênc. Ambient. (Online)

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Este trabalho avaliou a vulnerabilidade socioambiental à ocorrência dedeslizamentos em uma área da Região Metropolitana do Vale do Paraíba,no estado de São Paulo, através da construção de índices ambientais esocioeconômicos, visando à criação de um índice sintético, denominadoíndice de vulnerabilidade geral (IVG). Consideraram-se indicadores obtidosatravés do Censo Demográfico de 2010 do Instituto Brasileiro de Geografia eEstatística, de séries históricas pluviométricas da Agência Nacional de Águase de registros de ocorrências de deslizamentos (1990 a 2016). O métodoestatístico de análise de componentes principais foi utilizado para obter umindicador que representasse a relação entre a precipitação e as ocorrênciasde deslizamentos. A partir de todos os indicadores, construíram-se os índicesde vulnerabilidade ambiental e social, obtendo-se assim o IVG. Os resultadosmostraram um índice muito elevado de vulnerabilidade nas regiões de Camposdo Jordão e Natividade da Serra devido, principalmente, à contribuição dosindicadores de chuva-deslizamento e socioeconômicos, respectivamente.

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Section: De Acordo Comunclassified

Aplicação De Análise Multivariada Para a Construção De Indicadores Ambientais Na Relação Entre Precipitação E Deslizamentos

Bosco

Cardoso

Young

2019

Rev. Bras. Ciênc. Ambient. (Online)

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“…Extreme rainfall events can cause substantial human and material losses, especially from landslides (Assis Dias et al, 2018;Kumar et al, 2017) and floods (Assis Dias et al, 2018;Hu et al, 2018), leading to crop production losses (Lunt et al, 2016) and increased water-borne diseases (Phung et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Spatialization of the Annual Maximum Daily Rainfall in Southeastern Brazil

et al. 2019

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Extreme rainfall can lead to heavy damage and losses, such as landslides, floods and agricultural productivity as well as the loss of human and animal lives. To mitigate these losses, water resources management policies are needed, among other goals, to study and predict the frequency of such events in a given region to minimize their harmful effects. The present study investigated the Generalized Extreme Value (GEV) probability distribution applied to the annual maximum daily precipitation data from rainfall stations in the southeastern Brazil. A total of 1,921 rainfall stations were considered, among which the stations with at least 15 years of uninterrupted observations were selected. Subsequently, the stationarity and adherence were tested. GEV probability distribution parameters were then estimated. The results enabled satisfactory spatial interpolation by ordinary kriging and the generation of maps of the distribution parameters. The semivariogram model with the best fit to the three GEV distribution parameters was the exponential model.

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“…Geodynamic, hydro-meteorological and climate events mean that the risk from extreme water events is increasing, as is the number of people affected by them. As Assis Dias et al note, between 1991 and 2010, Brazil recorded almost 39,000 natural disasters caused by droughts, floods, windstorms, landslides, tornados, hail, and frost [2]. These disasters destroyed many buildings, causing displacements and deaths [3].…”

Section: Introductionmentioning

confidence: 99%

“…These strategies were selected taking into account the context of Rocinha and feasibility. The research shows that ES assessment can be the starting point for projects based on NBS with a view to increasing resilience even in environmentally critical contexts.Sustainability 2019, 11, 4 2 of 13 landslides, tornados, hail, and frost [2]. These disasters destroyed many buildings, causing displacements and deaths [3].…”

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Adopting an Ecosystem Services-Based Approach for Flood Resilient Strategies: The Case of Rocinha Favela (Brazil)

Ronchi

Arcidiacono

2018

Sustainability

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Rocinha (Rio de Janeiro, Brazil) is the largest favela in South America. It is located on a steep mountain slope in the Tijuca National Park with a population of over 160,000 living in poor environmental, health and hygiene conditions. The geomorphological and urban setting of Rocinha makes it vulnerable to natural hazards, with the greatest risk posed by flooding or landslides, compromising the precarious balance between ecosystem services (ES) provision and human well-being. The paper aims to assess and map ES provision in a context where available data to identify areas vulnerable to natural risks is limited. The ES analyses were adapted to the specific socio-economic and environmental context of favelas, which are characterised by dense, continuously built-up environment and a high proportion of impervious surfaces, leading to deteriorating environmental, health and hygiene conditions over time. The ES-based approach was pivotal for setting out strategies-including nature-based solutions (NBS)-to mitigate disaster risk and increase local resilience. These strategies were selected taking into account the context of Rocinha and feasibility. The research shows that ES assessment can be the starting point for projects based on NBS with a view to increasing resilience even in environmentally critical contexts.Sustainability 2019, 11, 4 2 of 13 landslides, tornados, hail, and frost [2]. These disasters destroyed many buildings, causing displacements and deaths [3]. The most serious events were the 2001 floods which caused the country's worst ever natural disaster in its mountainous region, and the 2010 landslides which caused over 40 fatalities among the inhabitants of a Rio de Janeiro shantytown after a rainstorm [1,4].Nature-based solutions can increase the provision of urban ecosystem services. Solutions of this kind include green spaces (such as urban parks, gardens, forests, vacant lots and orchards) and so-called "blue infrastructure" (such as streams, lakes, water retention ponds and water springs). Ecosystem services can be defined as "the benefits that humans obtain from ecosystem functions" [5,6], or as the "direct and indirect contributions from ecosystems to human well-being" [7] that make human life possible in natural ecosystems.One of the services provided by urban ecosystems is their contribution to the water regulation cycle as rainfall capture by vegetation and permeable soils reduces the pressure on urban drainage systems and minimises the risk of flooding. Water drainage is even more critical in a context such as Rocinha, where buildings occupy 695,000 square metres, or 80% of the total area of 850,000 square metres.Adopting an ES framework can help to establish appropriate management, conservation, and renewal strategies by establishing which areas are most exposed to risk from natural disasters and the appropriate NBS for restoring them [8][9][10].Rainfall-runoff monitoring and upstream water yield forecasting modelling are essential technical processes for disaster risk management. Their asse...

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Estimation of exposed population to landslides and floods risk areas in Brazil, on an intra-urban scale

Cited by 56 publications

References 5 publications

Aplicação De Análise Multivariada Para a Construção De Indicadores Ambientais Na Relação Entre Precipitação E Deslizamentos

Aplicação De Análise Multivariada Para a Construção De Indicadores Ambientais Na Relação Entre Precipitação E Deslizamentos

Spatialization of the Annual Maximum Daily Rainfall in Southeastern Brazil

Adopting an Ecosystem Services-Based Approach for Flood Resilient Strategies: The Case of Rocinha Favela (Brazil)

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