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Article
Publication date: 27 May 2014

Abu Bakar Sambah and Fusanori Miura

– The purpose of this paper is to assess the vulnerability of the Kesennuma area in Japan to a tsunami disaster and to map the area of inundation.

Abstract

Purpose

The purpose of this paper is to assess the vulnerability of the Kesennuma area in Japan to a tsunami disaster and to map the area of inundation.

Design/methodology/approach

Digital elevation model (DEM) data and ALOS image were used to create maps of the parameters of this study area: elevation, slope, coastal proximity, river, and land use. An analytical hierarchy process was used to assign weights to each parameter and a spatial multi-criteria analysis was applied through cell-based modelling for vulnerability mapping.

Findings

The vulnerability map shows that 17.679 km2 of the area could be inundated by a tsunami. High vulnerability areas were mostly found in coastal areas with a sloping coast and a cape area. A low elevation and the presence of rivers or water channels are factors that increase the impact of tsunamis. Inundation areas were predicted to spread in areas identified as having either high vulnerability or slightly high vulnerability.

Research limitations/implications

Because of the limited geospatial data, the authors encourage further studies using DEM data with a high spatial resolution.

Practical implications

The results of this research can be used as basic information for disaster mitigation and urban planning in coastal areas.

Originality/value

This research creates a new approach for assessing which areas could be inundated by tsunamis, based on the vulnerability map generated through remote sensing and spatial multi-criteria analysis. Moreover, the parameters used are very close to those of actual inundation maps.

Details

Disaster Prevention and Management, vol. 23 no. 3
Type: Research Article
ISSN: 0965-3562

Keywords

Article
Publication date: 3 May 2016

Thomas Ronan and Richard Teeuw

– The purpose of this paper is to explore fire risk and preparedness, with regard to water flow rates and building types in London, focusing on Southall district.

Abstract

Purpose

The purpose of this paper is to explore fire risk and preparedness, with regard to water flow rates and building types in London, focusing on Southall district.

Design/methodology/approach

A land use survey was carried out to identify water requirements for firefighting across the study area. Local fire hydrant flow rates were analysed, using measurements taken during 2013 and archive data held by the London Fire Brigade (LFB). QGIS was used to explore relationships between fire hydrant flow rates, urban fire risk and socio-economic vulnerability data held by the LFB.

Findings

A new type of map, which includes data on water flow rates and building types, was created using QGIS and applied to Southall district, resulting in a map showing Combined Vulnerability to fires. Inadequate fire hydrant water supply was found across many parts of the borough.

Practical implications

This new approach to the evaluation and mapping of urban fire risk could be applied in other cities, to assess problems with water supply and the firefighting water flow requirements of various building types. The methodology can thus assist with adaptations to urban fire resource allocation, tactics, planning and preparedness.

Social implications

When socio-economic data are also available, this Geographical Information System-based methodology becomes very useful for assessing fire risk and developing strategies for preparedness and response.

Originality/value

This is the first time that London’s fire hydrant water pressures have been mapped and linked with socio-economic vulnerability maps, to produce a Combined Vulnerability map for assessing fire risk.

Details

International Journal of Emergency Services, vol. 5 no. 1
Type: Research Article
ISSN: 2047-0894

Keywords

Article
Publication date: 1 May 2001

Juergen Weichselgartner

Literature on natural risks typically examines either biophysical process characteristics or human pre‐ or post‐disaster activities. This paper takes a somewhat different track;…

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Abstract

Literature on natural risks typically examines either biophysical process characteristics or human pre‐ or post‐disaster activities. This paper takes a somewhat different track; first, it argues that also natural disasters are socially constructed and, therefore, second, it resets the framework in which disaster management has to be placed. While most researchers usually focus on risk assessment it is suggested that the concept of vulnerability can provide a vehicle to explore a contextual approach to the reduction of losses due to natural hazards. In a brief overview the conceptualization of vulnerability is presented. Since precise measurement of uncertainties and exact prediction of damages is hardly feasible, a conceptual approach in vulnerability assessment is proposed. Qualities that determine potential damage are identified and characteristics described. It is suggested that, even without assessing risk exactly, vulnerability reduction decreases damages and losses.

Details

Disaster Prevention and Management: An International Journal, vol. 10 no. 2
Type: Research Article
ISSN: 0965-3562

Keywords

Article
Publication date: 4 March 2014

Margaret Elizabeth Loughnan, Nigel J. Tapper, Thu Phan and Judith A. McInnes

The purpose of this paper is to demonstrate a spatial model of population vulnerability (VI) capable of identifying areas of high emergency service demand (ESD) during extreme…

Abstract

Purpose

The purpose of this paper is to demonstrate a spatial model of population vulnerability (VI) capable of identifying areas of high emergency service demand (ESD) during extreme heat events (EHE).

Design/methodology/approach

An index of population vulnerability to EHE was developed from a literature review. Threshold temperatures for EHE were defined using local temperatures, and indicators of increased morbidity. Spearman correlations determined the strength of the relationship between the VI and morbidity during EHE. The VI was mapped providing a visual guide of risk during EHE. Future changes in population vulnerability based on future population projections (2020-2030) were mapped.

Findings

The VI can be used to explain the spatial distribution of ESD during EHE. Mapping future changes in population density/demography indicated several areas currently showing high risk will continue to show increased risk.

Research limitations/implications

The limitations include using outdoor temperatures to determine health-related thresholds. Due to data restrictions three different measures of morbidity were used and aggregated to postal areas.

Practical implications

Identifying areas of increased service demand during EHE allows the development of proactive as-well-as reactive responses to heat. The model uses readily available data, is replicable in larger urban areas.

Social implications

The model allows emergency service providers to work with high risk communities to build resilience to heat exposure and subsequently save lives.

Originality/value

To the authors’ knowledge this triangulated approach using heat thresholds, ESD and projected changes in risk in a spatial framework has not been presented to date.

Details

International Journal of Emergency Services, vol. 3 no. 1
Type: Research Article
ISSN: 2047-0894

Keywords

Article
Publication date: 10 April 2017

Nadjet Zair, Salah Chaab and Catherine Bertrand

The purpose of this paper is to assess the vulnerability of the aquifer using two models of analysis (DRASTIC and GOD) that were applied in practice in the regions of Bir…

Abstract

Purpose

The purpose of this paper is to assess the vulnerability of the aquifer using two models of analysis (DRASTIC and GOD) that were applied in practice in the regions of Bir Chouhada, Souk Naamane and Ouled Zouai in the district of Oum El-Bouaghi.

Design/methodology/approach

This study aims to determine the most adequate methods to ensure the protection of the Bir Chouhada, Souk Naamane and Ouled Zouai aquifer from pollution using vulnerability assessment. The application of the DRASTIC and GOD models made this evaluation possible.

Findings

The analysis of the both maps of vulnerability, resulting from the application of the two methods (DRASTIC and GOD), has revealed several classes of vulnerability that are no-, low-, medium- and high-vulnerable area. High DRASTIC vulnerability values vary between 145 and 178, and those of GOD vary between 0.07 and 0.57. It is observed that vulnerability increases from the center toward the eastern part of the plain; this is confirmed by the repartition of nitrate contents. The impact of the hydraulic conductivity on vulnerability to pollution is more significant than those of the vadose zone and the aquifer media. This is well observed when considering the single-parameter sensitivity analysis.

Originality/value

The text deepens the understanding of the vulnerability assessment and quality of the aquifer and the groundwater. The present study can be used for the assessment and the management of groundwater.

Details

Management of Environmental Quality: An International Journal, vol. 28 no. 3
Type: Research Article
ISSN: 1477-7835

Keywords

Article
Publication date: 16 November 2020

Ismaila Usman Kaoje, Muhammad Zulkarnain Abdul Rahman, Nurul Hazrina Idris, Tze Huey Tam and Mohd Radhie Mohd Sallah

The purpose of this paper is to introduce a geospatial approach for buildings flood vulnerability assessment using an indicator-based method (IBM) to support flood risk assessment…

Abstract

Purpose

The purpose of this paper is to introduce a geospatial approach for buildings flood vulnerability assessment using an indicator-based method (IBM) to support flood risk assessment and mapping of physical elements at risk in Kota Bharu District, Kelantan, Malaysia.

Design/methodology/approach

The study developed an indicator-based approach to undertake physical flood vulnerability assessment of buildings. The approach takes into consideration flood hazard intensity, building characteristics and structures surrounding the environment as factors that influence flood vulnerability. The aggregation of the total flood vulnerability index is carried out in a geographic information system (GIS) environment.

Findings

The results provide a spatial representation of buildings flood vulnerability index in Kota Bharu Malaysia, and the degree of expected vulnerability is expressed on a scale between 0 to 1 (low damage to total damage). Mapping flood vulnerability index of buildings should be considered in future flood mitigation and evacuation planning.

Originality/value

Unlike other indicator-based methods (IBMs) developed for physical flood vulnerability assessment, in the current study, hazard intensity has been considered and incorporated in the physical flood vulnerability model.

Details

International Journal of Disaster Resilience in the Built Environment, vol. 12 no. 4
Type: Research Article
ISSN: 1759-5908

Keywords

Article
Publication date: 1 April 2020

Md. Shaharier Alam and Shamim Mahabubul Haque

Seismic vulnerability evaluation of various public structures, especially school buildings, is very crucial for designing hazard mitigation initiatives in seismic prone areas. The…

Abstract

Purpose

Seismic vulnerability evaluation of various public structures, especially school buildings, is very crucial for designing hazard mitigation initiatives in seismic prone areas. The city of Mymensingh is at great risk of earthquake because of its geographical location, geological structure and proximity to active faults. The city is famous for its ancient and renowned educational institutes that need to be evaluated for understanding the seismic performance of the building during an earthquake. This study aims to evaluate the seismic vulnerability of educational buildings of Mymensingh city using rapid visual screening (RVS) and index based approach.

Design/methodology/approach

RVS procedure includes field survey and secondary source assessment for evaluating structural vulnerability attributes. Analytical hierarchy process is applied to develop an index focusing on systematic attributes of vulnerability based on expert opinions. Then, a composite vulnerability map is developed combining both structural and systematic vulnerability score providing an equal weight.

Findings

This study evaluates the seismic vulnerability of 458 educational buildings of Mymensingh city and the result shows that 23.14% educational building has high, 46.29% has moderate and 26.86% has moderately low and only 3.71% buildings has the low seismic vulnerability. This study expected to be helpful in resource targeting and prioritizing seismic hazard mitigation activities for education buildings of Mymensingh city.

Originality/value

This study endeavors to present a comprehensive vulnerability assessment method by integrating RVS and index based approach that incorporates both structural and systematic dimensions of vulnerability. The result is expected to be helpful in the formulation of disaster prevention policy for vulnerable educational buildings and development of the earthquake-resistant building codes for the new building construction in Mymensingh city.

Details

International Journal of Disaster Resilience in the Built Environment, vol. 11 no. 3
Type: Research Article
ISSN: 1759-5908

Keywords

Article
Publication date: 28 September 2020

Clarke Shupe-Diggs, Stephen Kofi Diko and Charles A. Santo

Vulnerability studies are commonly used to inform planning, as cities and regions seek to build resilience to environmental hazards. In Shelby County, Tennessee, socioeconomic…

Abstract

Purpose

Vulnerability studies are commonly used to inform planning, as cities and regions seek to build resilience to environmental hazards. In Shelby County, Tennessee, socioeconomic census tract data were mapped to identify the socially vulnerable population and places to underpin strategies in the Mid-South Regional Resilience Master Plan (RRMP). While this is an important step in identifying vulnerability in the county, this paper aims to enhance the local analysis through an integrated approach that considers both social factors and environmental hazards in assessing vulnerability.

Design/methodology/approach

This paper conducts a social vulnerability assessment by integrating a social vulnerability index with risk exposure analysis at the census tract level to identify the population and places vulnerable to riverine flooding in Shelby County.

Findings

The analysis reveals that social vulnerability assessments that do not relate socioeconomic factors to specific environmental hazards such as riverine flooding underestimate the population and places that are vulnerable. For Shelby County, this has the tendency to undermine the prioritization and effectiveness of strategies to build resilience to riverine flooding and can worsen preexisting marginalization.

Practical implications

This paper recommends integrated vulnerability assessments for each of the environmental hazards identified in the Mid-South RRMP to augment existing resilience efforts in the county.

Originality/value

This paper enhances the understanding of social vulnerability assessments by consolidating the need for integrated assessment frameworks as basis for resiliency planning.

Details

International Journal of Disaster Resilience in the Built Environment, vol. 12 no. 3
Type: Research Article
ISSN: 1759-5908

Keywords

Book part
Publication date: 9 November 2020

Mark Williams, Natasha Pauli and Bryan Boruff

Climate change, deforestation and hydropower dams are contributing to environmental change in the Lower Mekong River region, the combined effects of which are felt by many rural…

Abstract

Climate change, deforestation and hydropower dams are contributing to environmental change in the Lower Mekong River region, the combined effects of which are felt by many rural Cambodians. How people perceive and manage the effects of environmental change will influence future adaptation strategies. The objective of this research was to investigate whether the use of a low-cost, explicitly spatial method (participatory mapping) can help identify locally relevant opportunities and challenges to climate change adaptation in small, flood-prone communities. Four villages along the banks of the Mekong River in Kratie Province, Cambodia, were the subject of this research. To identify perceived environmental hazards and adaptive responses, eight workshops were conducted using focus-group interviews and participatory mapping. The communities’ responses highlight the evolving nature of environmental hazards, as droughts increase in perceived importance while the patterns of wet season flooding were also perceived to be changing. The attribution of the drivers of these hazards was strongly skewed towards local factors such as deforestation and less towards regional or global drivers affecting the hydrology of the Mekong and climate patterns. Combining participatory mapping with focus-group interviews allowed a greater depth of understanding of the vulnerabilities and opportunities available to communities than reliance on a single qualitative method. The study highlights the potential for a bottom-up transfer of information to strengthen existing climate change policies and tailor adaptation plans to local conditions.

Details

Climate-Induced Disasters in the Asia-Pacific Region: Response, Recovery, Adaptation
Type: Book
ISBN: 978-1-83909-987-8

Keywords

Article
Publication date: 23 November 2023

Sayed Arash Hosseini Sabzevari, Haleh Mehdipour and Fereshteh Aslani

Golestan province in the northern part of Iran has been affected by devastating floods. There has been a significant change in the pattern of rainfall in Golestan province based…

Abstract

Purpose

Golestan province in the northern part of Iran has been affected by devastating floods. There has been a significant change in the pattern of rainfall in Golestan province based on an analysis of the seven heaviest rainfall events in recent decades. Climate change appears to be a significant contributing factor to destructive floods. Thus, this paper aims to assess the susceptibility of this area to flash floods in case of heavy downpours.

Design/methodology/approach

This paper uses a variety of computational approaches. Following the collection of data, spatial analyses have been conducted and validated. The layers of information are then weighted, and a final risk map is created. Fuzzy analytical hierarchy process, geographic information system and frequency ratio have been used for data analysis. In the final step, a flood risk map is prepared and discussed.

Findings

Due to the complex interaction between thermal fluctuations and precipitation, the situation in the area is further complicated by climate change and the variations in its patterns and intensities. According to the study results, coastal areas of the Caspian Sea, the Gorganrood Basin and the southern regions of the province are predicted to experience flash floods in the future. The research criteria are generalizable and can be used for decision-making in areas exposed to flash flood risk.

Originality/value

The unique feature of this paper is that it evaluates flash flood risks and predicts flood-prone areas in the northern part of Iran. Furthermore, some interventions (e.g. remapping land use and urban zoning) are provided based on the socioeconomic characteristics of the region to reduce flood risk. Based on the generated risk map, a practical suggestion would be to install and operate an integrated rapid flood warning system in high-risk zones.

Details

International Journal of Disaster Resilience in the Built Environment, vol. 15 no. 3
Type: Research Article
ISSN: 1759-5908

Keywords

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