Reducing social vulnerability can decrease both human suffering and economic loss. Vulnerability flood vulnerability index fvi unescoihe. Vulnerabilities differs between families in a same village. Reducing the complexity of the flood vulnerability index. Flood vulnerability index as a knowledge base for flood. Mndot flash flood vulnerability and adaptation assessment pilot project. Pca simplifies a large number of variables into a few uncorrelated factors representing the social, economic, physical and environmental dimensions of vulnerability.
Stepbystep guide to vulnerability hotspots mapping. Applying the flood vulnerability index as a knowledge base for flood risk assessment. In fact, the improvement in assessment methods is related to the necessity for enhanced decisionmaking procedures. Therefore, it is a need to use a 18 multidisciplinary approach to measure vulnerability, such as the flood vulnerability index fvi. Pdf flood vulnerability assessment as an essential part of the urban flood management is done by various methods by several researchers. Checklist for vulnerability of floodprone sites and buildings t. Pdf flood vulnerability index as a knowledge base for. Development of flood vulnerability indices at varying spatial scales, its implementation and dissemination 4. In this work, we build on earlier work on a flood vulnerability index in river basins balica et al. Dottori and martina presented a preliminary version of the flood intensity index iw, based on the existing gis functions to compute non. Continuous improvements and changes, investigative and managerial practices, namely the planning instances of city institutions, need to be equipped. Composite indicators as decision support method for flood. Composite indicators as decision support method for flood analysis.
Philippine flood risk index, hazard, exposure, vulnerability, coping capacity, par. A new approach for computing a flood vulnerability index. An assessment of san franciscos vulnerability to flooding extreme storms 5 san francisco department of public health climate change is happening now and faster than expected. Flood vulnerability assessment through different methodological. Flood modelling and vulnerability assessment of settlements in the adamawa state floodplain using gis and cellular framework approach. Assessing urban vulnerability to flood hazard in brazilian. Flood vulnerability flood vulnerability is the key element in flood risk assessment and damage evaluation. Vulnerability is the main construct in flood risk management. The study recommends the need to collect more baseline data on vulnerability to flood at the local level which will ease preparedness and. Analysis of vulnerability to flood disaster in kano.
The contributing percentage for the factors are mean annual rainfall 20%, slope 20%, landuse 20%, relief 15%, drainage density. A flood vulnerability index was used to measure the extent of flood vulnerability. One of the most significant aims of flood vulnerability assessment is to make a clear association between the theoretical conceptions of flood vulnerability and the daily administrative process. Towards an integrated flood vulnerability index a flood vulnerability assessment thesis pdf available april 2010 with 870 reads how we measure reads. Apr 26, 2016 vulnerability is the main construct in flood risk management. A report, spearheaded by sea level experts from noaas center for operational oceanographic products and services, looked at existing flood thresholds established by the national weather service and found patterns in the thresholds based upon tide range. Appl ying the flood vulnerability index as a knowledge base for flood risk assess ment, delft university. The flood social vulnerability assessment focuses on the municipality of. The current flood vulnerability index fvi methodology developed by the authors uses 71 indicators in its calculation.
Rationale for inclusion and supporting indicators the twelve individual indicators used to support the assessment of. A flood vulnerability index floodvi was developed using principal component analysis pca and a new aggregation method based on cluster analysis ca. Vulnerability there is a relationship between exposure to a flood h azard, risk the next topic of this chapter, and vulnerability. May 02, 2018 noaa scientists have demonstrated a new method to assess flood vulnerability in the united states on a national to regional level. Reducing the complexity of flood vulnerability index 5. Social vulnerability assessment for flood risk analysis mdpi. Analysis of applicability of flood vulnerability index in. Pdf flood vulnerability indices at varying spatial scales. Economic estimates of flood damages rely on depthdamage functions that are inadequately verified. Mndot flash flood vulnerability and adaptation assessment.
The flood vulnerability index can be used by international river basin organisations to identify and develop action plans to deal with floods and flooding or on smaller scales to improve local decisionmaking processes by selecting measures to reduce vulnerability at local and regional levels. Communitybased flood vulnerability index for urban flooding. Flood vulnerability index as a knowledge base for flood risk. This study focuses on an approach to assess flood vulnerability as a planning tool using an integrated flood vulnerability index fvi with variables that are accessible in developing countries and arid urban areas. The results show that vulnerability to flood in this community is determined by the nature of soil, dwelling type, employment, education and amount of rainfall in. Pdf reducing the complexity of the flood vulnerability index. A flood vulnerability index for coastal cities and its use. Noaa scientists have demonstrated a new method to assess flood vulnerability in the united states on a national to regional level. Methodology we have proposed that the flash flood risk is a combination of both the flash flood potential and the flash flood vulnerability.
Checklist for vulnerability of flood prone sites and buildings t he checklist for vulnerability of flood prone sites and building can be used to assess sitespecific flood hazards and building vulnerability. Flood vulnerability indices at varying spatial scales. Key informant interviews, field surveys and household questionnaires were used to collect the data. Applying the flood vulnerability index as a knowledge base. Flood vulnerability assessment as an essential part of the urban flood management is done by various methods by several researchers.
Vulnerability is considered in the study of flood vulnerability index fvi as the extent of harm, which can be expected under certain conditions of exposure, susceptibility and resilience. Flood vulnerability index fvi enables everyone to assess vulnerability to flood disaster at basin level. Approach to calculating the neighbourhood flood vulnerability index nfvi. Variety of approaches has been introduced to assess vulnerability therefore selection of more appropriate methodology is vital for. Computation of flood vulnerability index fvi different methodologies have been used to compute a flood vulnerability index fvi. This study is part of this logic and aims to identify and map the flood zones of the city of jeddah in order to reduce their vulnerability and to integrate them into the strategies of prevention. Flood vulnerability indices at varying spatial scales water.
Jun 24, 2019 a flood vulnerability index was used to measure the extent of flood vulnerability. A methodology for flood susceptibility and vulnerability. Pdf flood vulnerability index as a knowledge base for flood risk. The notion to vulnerability has changed over the last 20 years. Vulnerability is multidimensional economic, social, demographic, politicalinstitutional and psychological that affect peoples susceptibility to environmental hazard and is influenced by a number of factors, at different levels from the local to the global. This guidance on flood risk and coastal change will help local planning authorities in the. The flood vulnerability index can be used by international river basin organisations to identify and develop action plans to deal with floods and flooding or on. Flood vulnerability factors water resource systems are vulnerable to floods due to three main factors. The two efforts work together to provide a fuller understanding of the flood vulnerabilities fac ed by mndot. This is because the flood vulnerability class progression in the model coincide with the areas of observable impact as earlier visited on the field when compared with the model.
Despite these caveats, the spatial vulnerability index construction methods described here are widely used in the literature and have been found to be useful to policy audiences seeking to better understand the factors contributing to vulnerability e. This study focuses on an approach to assess flood vulnerability and discuss the benefits of adaptation options at a city scale and sub catchment scale, using flood vulnerability index balica et al. An integrated urban flood vulnerability index for sustainable. First, the highlevel systemwide assessment was undertaken to provide a list of the facilities most vulnerable to flooding. Vulnerability is the measure of the capacity to weather, resist, or recover from the impacts of a hazard in the long term as well as the short term. This report was produced under united states agency for international development usaid cooperative agreement no. Flood vulnerability indices at varying spatial scales semantic scholar. An information system for riskvulnerability assessment to flood. Understanding each concept and considering certain indicators may help to characterize the vulnerability of different systems, by which certain actions can be identified to decrease it.
Disadvantageous flood plain management makes people living on floodplains more vulnerable to floods. An assessment of flood vulnerability and adaptation. Towards an integrated flood vulnerability index a flood vulnerability assessment. A questionnaire was designed by the authors, pretested, and administered at the household level to obtain primary data. Flood vulnerability assessment by applying a fuzzy logic. Jun 15, 2011 the current flood vulnerability index fvi methodology developed by the authors uses 71 indicators in its calculation. Following the introduction, background information on flood events, research objectives, and theoretical frameworks are presented. Pdf flood vulnerability index as a knowledge base for flood. However, it is recognized that some of these indicators may be redundant or have no influence on the results. The conventional means to record hydrological parameters of a flood often fail to record an extreme event. New noaa report looks at national coastal flood vulnerability. Pdf climate change leads to increasing urban flooding hazard. Human population world wide is vulnerable to natural disasters. This 19 paper aims to analyze the applicability of such index in presaharan region of morocco.
A flood vulnerability index for coastal cities and its use in. New insights into us flood vulnerability revealed from. Coastal cities are often vulnerable and subject to the risks associated with floods, hence the need to sensitize decisionmakers on the threats posed by climate hazards and uncontrolled urbanization. Study of integrated social vulnerability index soviint of. Rationale for inclusion and supporting indicators the twelve individual indicators used to support the assessment of the five characteristics of flood. Checklist for vulnerability of floodprone sites and. An assessment of san franciscos vulnerability to flooding. Floods are highly relevant extreme events with increasing frequency at a global scale. The checklist presented here is an amended version of the checklist. This study is part of this logic and aims to identify and map the flood zones of the city of jeddah in order to reduce their vulnerability and to integrate them into the strategies of. Pdf towards an integrated flood vulnerability index a.
There is a need to develop our understanding of the vulnerability because nowadays it is understood that vulnerability is the root cause of disasters. Vulnerability is multidimensional economic, social, demographic, politicalinstitutional and psychological that affect peoples susceptibility to environmental hazard and is influenced by a number of factors, at different levels from the local to. However, it is recognized that some of these indicators may be redundant or. The research took place in the city of mexicali, baja, california. A report, spearheaded by sea level experts from noaas center for operational oceanographic products and services, looked at existing flood thresholds established by the national weather service and found patterns in the thresholds. They remain among the most dangerous and complex natural disasters in. Flood vulnerability assessment of ibadan city, oyo state, nigeria. Pdf towards an integrated flood vulnerability index a flood. How to measure vulnerability to flooding flood resilience. The results indicate variations between the zones in coping strength and vulnerability which implies varying local coping capacities. An overview to flood vulnerability assessment methods. They can cause severe physical, social and economic damages and losses in both rural and urban.
Social vulnerability refers to the resilience of communities when confronted by external stresses on human health, stresses such as natural or humancaused disasters, or disease outbreaks. Flood risk and vulnerability of jeddah city, saudi arabia. Quantitative assessment of vulnerability to flood hazards. Flood vulnerability assessment by applying a fuzzy logic method 2 1. Quantitative assessment of vulnerability to flood hazards in. A vulnerability index was also calculated for each zone. Nov 01, 2009 the flood vulnerability index can be used by international river basin organisations to identify and develop action plans to deal with floods and flooding or on smaller scales to improve local decisionmaking processes by selecting measures to reduce vulnerability at local and regional levels. All fvi equations have factors for exposure to hazard, sensitivity or susceptibility of the people, and their resilience or coping capacity to the hazard.
Flood vulnerability in bangladesh nazifa noor sarawat 187 geographic information systems 15 ecember 2015 introduction ata and methods i created a flood vulnerability index to map the regions of bangladesh that are most vulnerable to flood by weighted raster addition of elevation, precipitation, proximity to water bodies, and past flood. An initial questionnaire was designed based on the literature and was pretested by interviewing 15 randomly selected maize farmers in the study area and then a final questionnaire was developed to mirror local realities of the maize farmers vulnerability to. Flood vulnerability factors flood vulnerability index. Due to the extent of flooding impacts there is a need to improve methods in flood risk. Application of livelihood vulnerability index in assessing. Jul 23, 2018 flood vulnerability assessment as an essential part of the urban flood management is done by various methods by several researchers. I map vulnerability scores and highlight those municipalities with high vulnerability, high flood hazard and high flood exposure, to determine the size of the population at risk. Flood modelling and vulnerability assessment of settlements. This implies the effectiveness of flood risk index. Introduction floods are known as the most common and destructive natural phenomenon yoon et al 2014. In the present work, we derive a generalized formulation based on an iterative method, which reproduces flow dynamics in case of slow and gradually varied flow.
An information system for riskvulnerability assessment to. A remote sensing and gis approach for warning, mitigation and management sneh gangwar assistant professor, department of geography, aditi mahavidyalaya, university of delhi abstract. Flash flood potential is a combination of land surface characteristics. Variety of approaches has been introduced to assess vulnerability therefore selection of more. Researchers have developed many methods to assess flood vulnerability. For the last decade, cities and states have invested in developing climate action plans to reduce greenhouse gas emissions. This index can then be used to identify the most vulnerable coastal cities, develop adaptation measures for them and assess the effects of future change scenarios. Here, the authors assessed flood vulnerability in the us and found that current depthdamage. Parametric and physically based modeling techniques for flood risk and vulnerability assessment. Addition of a vulnerability component to the flash flood.
University of lagos, nigeria abstract the devastating flood occurrence and its impact on the people have been of great concern to man. Sep 12, 2018 social vulnerability refers to the resilience of communities when confronted by external stresses on human health, stresses such as natural or humancaused disasters, or disease outbreaks. The checklist presented here is an amended version of the checklist that was developed for fema p424, design guide for improving school safety in earthquakes, floods. Analysis of applicability of flood vulnerability index in pre.
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