A novel flood risk management approach based on future climate and land use change scenarios

The Science of The Total Environment, Год журнала: 2024, Номер 921, С. 171204 - 171204

Опубликована: Фев. 23, 2024

Язык: Английский

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Efficiency evaluation of low impact development practices on urban flood risk

Journal of Environmental Management, Год журнала: 2024, Номер 356, С. 120467 - 120467

Опубликована: Март 13, 2024

Язык: Английский

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Holistic Assessment of Social, Environmental and Economic Impacts of Pipe Breaks: The Case Study of Vancouver

Water, Год журнала: 2025, Номер 17(2), С. 252 - 252

Опубликована: Янв. 17, 2025

This paper presents a holistic assessment framework for the impacts of water distribution pipe breaks to promote environmentally sustainable and socially resilient cities. considers social, environmental, economic vulnerabilities as well probabilities associated with failure. The integration these features provides comprehensive approach understanding infrastructure risks. Taking city Vancouver case study, social vulnerability index (SVI) is obtained following application cross-correlation matrix principal component analysis (PCA) identify most influential among 33 selected variables from 2021 census Canadian population. Environmental Vulnerability Index (EVI) evaluated by considering park floodplain areas. Economic (ECI) derived replacement cost pipes. These indices offer valuable insights into spatial (consequences) across urban Subsequently, Consequence Failure (COF) computed aggregating three equal weights. Pipe probability failure (POF) Weibull model calibrated on real break data function age. enables dynamic evaluation deterioration over time. Risk finally assessed combining COF POF prioritizing rehabilitation, final objective mitigating adverse findings show significant impact ethnicity, socioeconomic indices, education index. Moreover, areas close English Bay Fraser River are more vulnerable. pipes high primarily concrete pipes, due their expensive costs. Finally, risk resulting used rank City network ranking system highlights critical requiring different levels attention improvements. All corresponding risks illustrated in maps, highlighting that very level mostly south north Vancouver.

Язык: Английский

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Exploring spatial heterogeneity and environmental injustices in exposure to flood hazards using geographically weighted regression

Environmental Research, Год журнала: 2022, Номер 210, С. 112982 - 112982

Опубликована: Фев. 23, 2022

Язык: Английский

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Flood vulnerability assessment of Thailand's flood-prone Pathum Thani province and vulnerability mitigation strategies

Journal of Environmental Management, Год журнала: 2023, Номер 347, С. 119276 - 119276

Опубликована: Окт. 6, 2023

Язык: Английский

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Exploring interactions between socioeconomic context and natural hazards on human population displacement

Nature Communications, Год журнала: 2023, Номер 14(1)

Опубликована: Дек. 4, 2023

Abstract Climate change is leading to more extreme weather hazards, forcing human populations be displaced. We employ explainable machine learning techniques model and understand internal displacement flows patterns from observational data alone. For this purpose, a large, harmonized, global database of disaster-induced movements in the presence floods, storms, landslides during 2016–2021 presented. account for environmental, societal, economic factors predict number displaced persons per event affected regions. Here we show that displacements can primarily attributed combination poor household conditions intense precipitation, as revealed through interpretation trained models using both Shapley values causality-based methods. hence provide empirical evidence differential or uneven vulnerability exists means its quantification, which could help advance evidence-based mitigation adaptation planning efforts.

Язык: Английский

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Mapping wildfire hazard, vulnerability, and risk to Canadian communities

International Journal of Disaster Risk Reduction, Год журнала: 2023, Номер 101, С. 104221 - 104221

Опубликована: Дек. 24, 2023

Large and intense wildfires are an integral part of many Canadian landscapes, playing a critical role in ecosystem dynamics. However, the recent catastrophic fire seasons have highlighted threat that can pose to human communities. Identifying areas at higher risk is therefore crucial order mitigate impacts on society. This study presents standardized method for nationwide wildfire assessment, focusing buildings populations. Using Burn-P3 simulation model, along with building footprint census data, we generated hazard, vulnerability, maps Canada's forested regions. Our findings demonstrate nuanced understanding when considering interaction between hazard physical vulnerability. Approximately 32.3% 6.3% land classified as High Very high risk, respectively. We estimate 111,519 units (5.8%) directly exposed 10,622 (0.6%) risk. Moreover, found approximately 283,200 people reside while 30,500 live Indigenous on-reserve communities particularly vulnerable impact. 18.9% living reserves fire, compared only 2.4% non-reserve population. The present offers information development national management policy provides new insights support implementation effective measures reduction.

Язык: Английский

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A multi-dimensional framework for improving flood risk assessment: Application in the Han River Basin, China

Journal of Hydrology Regional Studies, Год журнала: 2023, Номер 47, С. 101434 - 101434

Опубликована: Июнь 1, 2023

The Han River Basin, China As the water source of Middle Route Project South to North Water Transfer Project, security in Basin deeply impacts national resource allocation. This study constructed a Multi-Dimensional Flood Risk Assessment (MDFRA) framework combining comprehensive index system, an integrated weight method, and clustering algorithm assess flood risk Basin. We first system including eight hazard indexes, four exposure vulnerability indexes demographic, economic, ecological, infrastructural categories risk. weights were determined by which Shapley value Analytic Hierarchy Process method (SAHP). Finally, possibilistic fuzzy C-means was employed identify levels. MDFRA presents realistically comprehensively, revealing composition providing more detailed information. Results show that high-risk regions accounted for 34.51% basin area mainly concentrated mid-lower reaches, while middle-risk (19.13%) middle-high-risk (23.35%) distributed upstream. 4.52%, 5.12%, 13.37% assigned as very-low, low, middle-low respectively, adjacent Danjiangkou reservoir. Flood-prone natural conditions dense population assets causes high risk, reservoir regulation storage capacity had significantly alleviated

Язык: Английский

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Assessing social vulnerability and identifying spatial hotspots of flood risk to inform socially just flood management policy

Risk Analysis, Год журнала: 2022, Номер 43(5), С. 1058 - 1078

Опубликована: Июнь 10, 2022

This study presents the first nationwide spatial assessment of flood risk to identify social vulnerability and exposure hotspots that support policies aimed at protecting high-risk populations geographical regions Canada. The used a national-scale hazard dataset (pluvial, fluvial, coastal) estimate 1-in-100-year all residential properties across 5721 census tracts. Residential data were spatially integrated with census-based multidimensional index (SoVI) included demographic, racial/ethnic, socioeconomic indicators influencing vulnerability. Using Bivariate Local Indicators Spatial Association (BiLISA) cluster maps, identified geographic concentration where high coincided exposure. results revealed considerable variations in tract-level Flood belonged 410 tracts, 21 metropolitan areas, eight provinces comprising about 1.7 million total population 51% half-a-million Results near core dense urban areas predominantly occupying those hotspots. Recognizing priority locations is critically important for government interventions mitigation initiatives considering socio-physical aspects flooding. Findings reinforce better understanding flood-disadvantaged neighborhoods Canada, are required target preparedness, response, recovery resources foster socially just management strategies.

Язык: Английский

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Assessing social vulnerability to flood hazards: A case study of Sarawak's divisions

International Journal of Disaster Risk Reduction, Год журнала: 2023, Номер 97, С. 104052 - 104052

Опубликована: Окт. 1, 2023

Social vulnerability assessment to flood hazard depends upon multiple factors that can vary across the different indicators. However, there is limited knowledge on specific indicators suitable for assessing social Sarawak. This study systematically analyzed important components of and mapped them by weight 12 divisions. Indices focusing two dimensions (physical exposure resistances) were identified based literature. Data these indices then collected through relevant government agencies. Components assessed significantly contributing Principal Component Analysis (PCA). An entropy method was used Vulnerability estimated Iyengar Sudarshan methodology data produce a map proposed Index (SVI). The results indicated divisions Kuching, Miri, Sibu Bintulu more vulnerable (score over than 0.81) those in other Greater mainly due high extreme events less adaptive capacity resistance, which affect agricultural production negatively, combination with population density communities. clearly shows areas are susceptible, indicating government's adaptation measures should depending available resources, urgency, means survival needed achieve resilience against climate change.

Язык: Английский

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