scholarly journals Assessing vulnerability for inhabitants of Dhaka City considering flood-hazard exposure

Geofizika ◽  
2020 ◽  
Vol 37 (2) ◽  
pp. 97-130
Author(s):  
Md. Enamul Huq ◽  
Md. Mahabubur Rahman ◽  
Abdullah Al Mamun ◽  
Md. Masud Parves Rana ◽  
Ahmed Abdullah Al Dughairi ◽  
...  
Keyword(s):  
Flood Hazard ◽  
Future Research ◽  
Urban Habitat ◽  
Flood Hazards ◽  
Flood Vulnerability ◽  
Hazard Exposure ◽  
Household Vulnerability ◽  
Individual Household ◽  
Social Environmental ◽  
Future Work

Global flood hazard is gradually increasing. Though it is impossible to avoid them, losses and damage of hazards (e.g., floods, cyclones, and earthquakes) could be efficiently reduced by reducing household vulnerability with appropriate measures. This study aims to quantitatively measure the household vulnerability of flood hazards as a mitigation tool. It also proposed a unique approach to quantify flood-hazard household vulnerability, and shows its application in the flood prone city of Dhaka as an example case. Data were collected from both slum and non-slum areas to cover the entire urban habitat, and to compare their level of flood vulnerability. A total of 300 households were surveyed by structured questionnaire on the basis of five factors (economic, social, environmental, structural, and institutional) of flood vulnerability. The analytical hierarchy process (AHP) was applied to measure individual household vulnerability scores by using the relative weightage of variables and indicators with proper standardisation. Analytical results demonstrated that 63.06% slum and 20.02% non-slum households were highly vulnerable to floods. In addition, this paper determined and assessed responsible factors for household flood vulnerability in Dhaka. For structural vulnerability, results exhibited that 82% of slum households were highly vulnerable, and 95.3% of non-slum households were moderately vulnerable. Socially, 67.3% of slum and 78.7% of non-slum households were moderately and low-vulnerable. The majority of slum and non-slum households (84% and 59.3%, respectively) showed high and moderate vulnerability with respect to economic vulnerability. Moreover, 69.3% of slum and 65.3% of nonslum household institutional vulnerability levels were high. Of slum inhabitants, 63.3% were environmentally at high risk, and 78% of non-slum habitats were in the low-vulnerability category. However, as an effective tool to measure location-specific vulnerability, it is applicable for the measuring vulnerability of other cities in the world with proper customisation. On the basis of this study, future research could be conducted with more factors, variables, and indicators of human vulnerability to natural or artificial hazards/disasters. Future work may provide a better reflection of the vulnerability status of single/multiple hazard(s)/disaster(s).

Multi-Criteria Decision Making for Vulnerability Mapping of Flood Hazard: A Case Study of Pune City

2019 ◽  
Vol 2 (1) ◽  
pp. 41-52
Author(s):  
Nitin Mundhe
Keyword(s):  
Decision Making ◽  
Flood Hazard ◽  
Geographical Information ◽  
Multi Criteria Decision Making ◽  
Flood Hazards ◽  
Very High Frequency ◽  
Flood Vulnerability ◽  
Natural Risk ◽  
The Town

Floods are natural risk with a very high frequency, which causes to environmental, social, economic and human losses. The floods in the town happen mainly due to human made activities about the blockage of natural drainage, haphazard construction of roads, building, and high rainfall intensity. Detailed maps showing flood vulnerability areas are helpful in management of flood hazards. Therefore, present research focused on identifying flood vulnerability zones in the Pune City using multi-criteria decision-making approach in Geographical Information System (GIS) and inputs from remotely sensed imageries. Other input data considered for preparing base maps are census details, City maps, and fieldworks. The Pune City classified in to four flood vulnerability classes essential for flood risk management. About 5 per cent area shows high vulnerability for floods in localities namely Wakdewadi, some part of the Shivajinagar, Sangamwadi, Aundh, and Baner with high risk.

scholarly journals GIS based Flood Vulnerability Studies for Ife Central Local Government Area, Osun State, Nigeria

2020 ◽  
Vol 4 (1) ◽  
pp. 160-171
Author(s):  
V.A. Ijaware
Keyword(s):  
Local Government ◽  
Flood Hazard ◽  
Pairwise Comparison ◽  
Tropical Rainfall Measuring Mission ◽  
Satellite System ◽  
Comparison Method ◽  
Local Government Area ◽  
Landsat 8 ◽  
Flood Hazards ◽  
Flood Vulnerability

Flood has negatively affected Ife Central Local Government Area of Osun State, Nigeria. This work is aimed at mapping the vulnerability of the area to flood. Its objectives addressed the ranking of various natural and artificial factors causing flood, the determination and delineation of vulnerability to flood in the study area. Using remote sensing and GIS techniques, coordinates of flooded sites were acquired with Global Navigation Satellite System receiver; Landsat 8 data were acquired from the USGS website. To map land use, elevation data were acquired from the Shuttle Radar Topographic Mission Digital Elevation Models, soil data was obtained from the Nigerian Geological Survey website, and rainfall data was acquired from Tropical Rainfall Measuring Mission satellit. Using Pairwise Comparison, the various weights of factors constituting flood in the area were acquired. Weighted Linear Combination and Analytical Hierarchical Process was used in producing the flood hazard and flood vulnerability maps. ArcGIS 10.2 Software was used in spatial and attribute data acquisition, processing, and information presentation. The Pairwise Comparison method adopted was validated and observed to have a consistency ration of 0.003. Results obtained show that 9.2% of the study area is highly prone to flood hazards 20.4% is prone to flood hazard and 44.3% is moderately prone to flood hazard. The method adopted correctly identifies all existing flood incidence areas within the flood- prone areas in the hazard map. The maps produced will serve as an effective tool to aid the prevention and mitigation of flood disaster in the flood-prone area.

scholarly journals Flood Rate Assessment of the Woyla River Watershed, Aceh Province, Indonesia

2021 ◽  
Vol 10 (2) ◽  
pp. 84-99
Author(s):  
Rifa Alayani ◽  
Sugianto Sugianto ◽  
Hairul Basri
Keyword(s):  
Flood Hazard ◽  
Survey Method ◽  
Flood Hazards ◽  
Flood Vulnerability ◽  
Flood Susceptibility ◽  
Aceh Province ◽  
Collection Data ◽  
Hazard Level ◽  
Hazard Levels ◽  
Very High

This study aims to assess Flood susceptibility and flood hazard levels and obtain the distribution of hazard levels and flood hazards in the Woyla watershed, Aceh Province. This research design generally uses a descriptive survey method and divide into several stages, such as data collection, data processing, data presentation, and delivery of research results. Each determinant of flood-prone areas includes a land slope, altitude, soil texture, drainage, land cover, and rainfall, analyzed spatially utilizing a map. Furthermore, based on the map, the regions are described based on the values that have been divided into classes. The results showed that the level of flood vulnerability in the Woyla watershed was divided into five classes, namely; the non-vulnerable class with an area of 14.88 Ha / 0.01%, low prone with an area of 90,731.62 Ha / 35.45%, medium with an area of 57,120.35 Ha / 22.32%, high with an area of 44,918.15 Ha / 17.55%, and very high with an area of 63,151.72 Ha / 24.67%. Also obtained a map of the distribution of flood hazard areas, the Woyla watershed area is divided into five classes, namely; the very light class with an area of 179,146.15 Ha / 70.00%, mild with an area of 32,868.84 Ha / 12.84%, moderate with an area of 20,129.93 Ha / 7.87%, danger with an area of 6.007. 29 Ha / 2, 35%, and very dangerous with an area of 17,784.51 Ha / 6.95%. The level of flood vulnerability in the Woyla watershed is dominant in West Aceh Regency, which is in the very high and high category classes with a total area of 56,876.65 Ha and 23,527.40 Ha. Meanwhile, the level of flood hazard in the Woyla watershed is also more dominant in West Aceh Regency than falls into the most dangerous and dangerous class category with a total area of 17,784.51 Ha and 6,007.29 Ha. With the largest part in the very light class at the flood hazard level of 179,146.15 ha.

scholarly journals Assessing tropical cyclone compound flood risk using hydrodynamic modelling: a case study in Haikou City, China

2021 ◽  
Author(s):  
Qing Liu ◽  
Hanqing Xu ◽  
Jun Wang
Keyword(s):  
Flood Risk ◽  
Flood Hazard ◽  
Copula Function ◽  
Coastal Flooding ◽  
Future Research ◽  
Flood Hazards ◽  
Storm Tide ◽  
Inundation Area ◽  
Joint Occurrence

Abstract. The co-occurrence of storm tide and rainstorm during tropical cyclones (TCs) can lead to compound flooding in low-lying coastal regions. The assessment of TC compound flood risk can provide vital insight for research on coastal flooding prevention. This study investigates TC compound flooding by constructing a storm surge model and overland flooding model using Delft3D Flexible Mesh (DFM), illustrating the serious consequences from the perspective of storm tide. Based on the probability distribution of storm tide, this study regards TC1415 as the 100-year event, TC6311 as the 50-year event, TC8616 as the 25-year event, TC8007 as the 10-year event, and TC7109 as the 5-year event. The results indicate that the coastal area is a major floodplain, primarily due to storm tide, with the inundation severity positively correlated with the height of the storm tide. For 100-year TC event, the inundation area with a depth above 1.0 m increases by approximately 2.5 times when compared with 5-year TC event. The comparison of single-driven flood (storm tide flooding and rainstorm inundation) and compound flood hazards shows that simply accumulating every single-driven flood hazard to define the compound flood hazard may cause underestimation. For future research on compound flooding, copula function can be adopted to investigate the joint occurrence of storm tide and rainstorm to reveal the severity of extreme TC flood hazards.

Social Cognitive Theory and Motivation

2019 ◽  
pp. 9-26 ◽  
Author(s):  
Dale H. Schunk ◽  
Ellen L. Usher
Keyword(s):  
Social Cognitive Theory ◽  
Self Efficacy ◽  
Goal Attainment ◽  
Social Cognitive ◽  
Cognitive Theory ◽  
Outcome Expectations ◽  
Social Comparisons ◽  
Future Research ◽  
Regulatory Processes ◽  
Social Environmental

Social cognitive theory is a theory of human behavior that emphasizes learning from the social environment. This chapter focuses on Bandura’s social cognitive theory, which postulates reciprocal interactions among personal, behavioral, and social/environmental factors. Persons use various vicarious, symbolic, and self-regulatory processes as they strive to develop a sense of agency in their lives. Key motivational processes are goals and self-evaluations of progress, outcome expectations, values, social comparisons, and self-efficacy. People set goals and evaluate their goal progress. The perception of progress sustains self-efficacy and motivation. Individuals act in accordance with their values and strive for outcomes they desire. Social comparisons with others provide further information on their learning and goal attainment. Self-efficacy is a critical influence on motivation and affects task choices, effort, persistence, and achievement. Recommendations are made for future research.

scholarly journals Coastal flood risk within a peri-urban area: SUSSEX Inlet district, SE Australia

2021 ◽  
Author(s):  
E. F. Asbridge ◽  
D. Low Choy ◽  
B. Mackey ◽  
S. Serrao-Neumann ◽  
P. Taygfeld ◽  
...  
Keyword(s):  
Flood Risk ◽  
Flood Hazard ◽  
Extreme Rainfall ◽  
Cost Effective ◽  
Extreme Rainfall Events ◽  
Hazard Exposure ◽  
Rate Of Increase ◽  
Eastern Australia ◽  
Planning Strategies ◽  
Natural Resource Managers

AbstractThe peri-urban interface (PUI) exhibits characteristic qualities of both urban and rural regions, and this complexity has meant that risk assessments and long-term planning for PUI are lagging, despite these areas representing new developing settlement frontiers. This study aims to address this knowledge gap by modifying an existing approach to quantify and assess flood risk. The risk triangle framework was used to map exposure, vulnerability and biophysical variables; however, in a novel application, the risk triangle framework was adapted by presuming that there is a variation in the degree of exposure, vulnerability and biophysical variables. Within Australia and globally, PUIs are often coastal, and flood risk associated with rainfall and coastal inundation poses considerable risk to communities in the PUI; these risks will be further exacerbated should projections of increasing frequency of extreme rainfall events and accelerating sea-level rise eventuate. An indicator-based approach using the risk triangle framework that maps flood hazard, exposure and vulnerability was used to integrate the biophysical and socio-economic flooding risk for communities in PUI of the St Georges Basin and Sussex Inlet catchments of south-eastern Australia. Integrating the flood risk triangle with future scenarios of demographic and climate change, and considering factors that contribute to PUI flood risk, facilitated the identification of planning strategies that would reduce the future rate of increase in flood risk. These planning strategies are useful for natural resource managers and land use planners across Australia and globally, who are tasked with balancing socio-economic prosperity for a changing population, whilst maintaining and enhancing ecosystem services and values. The indicator-based approach used in this study provides a cost-effective first-pass risk assessment and is a valuable tool for decision makers planning for flood risk across PUIs in NSW and globally.

Workplace hazards in forensic mortuaries in Saudi Arabia: A survey of forensic mortuary personnel

2021 ◽  
pp. 002580242110196
Author(s):  
Mohammed Madadin ◽  
Ibtisam M Alkhattaf ◽  
Fatima H Abutaki ◽  
Mohammed A Almarzooq ◽  
Fahad A Alzahrani ◽  
...  
Keyword(s):  
Saudi Arabia ◽  
Forensic Medicine ◽  
Cross Sectional Study ◽  
Future Research ◽  
Online Questionnaire ◽  
Potential Threat ◽  
Cross Sectional ◽  
Workplace Hazards ◽  
Hazard Exposure ◽  
Work Related

Forensic mortuaries have always presented a potential threat to workers who come into contact with dead bodies. This research aims to identify hazards faced by forensic mortuary personnel, including forensic pathologists and technicians working in forensic mortuaries in forensic medicine centres throughout Saudi Arabia, to recognise the prevalence of exposure to workplace hazards and to discover the degree of awareness and use of safety practices. A descriptive, cross-sectional study was conducted in a total of 20 forensic medicine centres, using an online questionnaire distributed among forensic mortuary personnel. A total of 113 participants responded to the questionnaire. Just over half (53%) of workplaces always provided personal protective equipment, and 75% of participants always used them. The most common hazards were needle-prick wounds and accidental slips or falls. Almost two thirds (64%) of participants witnessed or experienced a work-related accident in the forensic mortuary. The lack of previous studies concerning hazard exposure among forensic mortuary personnel in Saudi Arabia means that this study provides foundational evidence for future research concerning forensic autopsy-related work accidents in Saudi Arabia.

scholarly journals Compounding effects of sea level rise and fluvial flooding

2017 ◽  
Vol 114 (37) ◽  
pp. 9785-9790 ◽  
Author(s):  
Hamed R. Moftakhari ◽  
Gianfausto Salvadori ◽  
Amir AghaKouchak ◽  
Brett F. Sanders ◽  
Richard A. Matthew
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Hazard Assessment ◽  
Failure Probability ◽  
River Flow ◽  
Flood Hazard ◽  
High Tide ◽  
Probability Method ◽  
Flood Hazards ◽  
Flood Hazard Assessment

Sea level rise (SLR), a well-documented and urgent aspect of anthropogenic global warming, threatens population and assets located in low-lying coastal regions all around the world. Common flood hazard assessment practices typically account for one driver at a time (e.g., either fluvial flooding only or ocean flooding only), whereas coastal cities vulnerable to SLR are at risk for flooding from multiple drivers (e.g., extreme coastal high tide, storm surge, and river flow). Here, we propose a bivariate flood hazard assessment approach that accounts for compound flooding from river flow and coastal water level, and we show that a univariate approach may not appropriately characterize the flood hazard if there are compounding effects. Using copulas and bivariate dependence analysis, we also quantify the increases in failure probabilities for 2030 and 2050 caused by SLR under representative concentration pathways 4.5 and 8.5. Additionally, the increase in failure probability is shown to be strongly affected by compounding effects. The proposed failure probability method offers an innovative tool for assessing compounding flood hazards in a warming climate.

Screening China Emergency Medical Team (CEMT) Members: A Self-Leadership Perspective

2018 ◽  
Vol 33 (6) ◽  
pp. 596-601
Author(s):  
Xinxin Hao ◽  
Xiaoxue Li ◽  
Jingchen Zheng
Keyword(s):  
Leadership Development ◽  
Future Research ◽  
Leadership Strategies ◽  
Medical Team ◽  
Role Clarity ◽  
Publication Type ◽  
Emergency Medical Team ◽  
Emergency Medical ◽  
Future Work ◽  
Depth Interviews

AbstractObjectiveThis study aims at establishing the self-leadership development model (SLM) of China Emergency Medical Team (CEMT) members as a supplement to current selection standards of CEMT members.MethodsRaw dataset was obtained through two ways: in-depth interviews and documentary materials (memoirs and articles). The in-depth interviews were conducted with a purposive sample of 12 CEMT members, all of whom have participated in multiple disaster relief activities and have been CEMT members for more than two years. This paper followed a grounded theory methodology dealing with all data.ResultsBased on tasks, the SLM-CEMT consists of three basic parts: (1) making plans; (2) action; and (3) outcomes. Different parts involve various self-leadership strategies, of which five are the original dimensions of previous research (goal-setting, visualizing successful performance, self-talk, self-reward, and self-correcting feedback) and three are new dimensions (role clarity, self-initiative, and self-vigilance).Conclusions:The SLM-CEMT, with the three new parts, provides a new look at screening CEMT members as well as pondering on future research. Based on the SLM-CEMT, administrators could screen more qualified CEMT members. For the limitations, future work will be on the generalization and confirmation of this model.HaoX,LiX,ZhengJ.Screening China Emergency Medical Team (CEMT) members: a self-leadership perspective.Prehosp Disaster Med.2018;33(6):596–601.

scholarly journals The newly created Publicly Available Specification (PAS 141) for reusable electrical/electronic products

2014 ◽  
Vol 25 (8) ◽  
pp. 1135-1147 ◽  
Author(s):  
Joao Quariguasi-Frota-Neto ◽  
Andrew Reade ◽  
Azadeh Dindarian ◽  
Andrew Gibson
Keyword(s):  
Necessary Conditions ◽  
Future Research ◽  
Electronic Products ◽  
Content Type ◽  
Business Innovation ◽  
Scant Attention ◽  
The Uk ◽  
Comprehensive Framework ◽  
Future Work

Purpose – In 2011, a governmental initiative driven by the Department for Business Innovation and Skills invited the British Standards Institute (BSI) to write and publish a publicly available specification (PAS) for the reuse of waste electrical and electronic equipment entitled PAS 141. The specification's ambitious goals, chief among them to reduce the amount of e-waste generated in the UK, has prompted debate as to whether they are realistic and the extent to which they can be influenced by the certification. The purpose of this paper is to propose a comprehensive framework that can be used in future research to enhance understanding of the mechanisms by which the introduction of PAS 141 certification could lead to the fulfillment of its goals, that is, successful uptake. The authors believe this framework can serve as a roadmap for those interested in the investigation of this novel certification and its effect on the market for reusable electrical and electronic products. Design/methodology/approach – This paper is based on interviews with reuse organizations and first hand experience as a participant in the steering group that elaborated the certification being investigated, i.e. PAS 141. Findings – It is uncertain whether PAS 141 will fulfill its promises, which are, in the view of the authors, rather ambitious, e.g. reduce e-waste. Furthermore, more research is needed to examine the effect that the introduction of the certification has on the materialization of its goals, and on the complex inter-relationship that exist between the goals and what the authors define as intermediary necessary conditions. Research limitations/implications – This is the first attempt the outline the research needs that arise from the introduction of PAS-141, and the authors believe that there are other equally important questions that are yet to be presented and examined. Practical implications – This paper proposes 28 hypotheses which will help future work to empirically establish: the possibility of PAS-141 attaining its goals and the main necessary conditions for that to happen. This information is pivotal to determine whether the certification is working and to pinpoint opportunities for improvement. Social implications – This works contributes to the understanding of the role of certification on the market of reused products, which employs a large number of people, and in particular, whose coming from disadvantaged backgrounds. Originality/value – Although certification in general has been widely investigated in prior research, scant attention has been paid to certification in the context of electronic products. To the best of the knowledge, this is the first paper of its kind, as it is the first to examine certification in that context.

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