International journal of disaster risk reduction最新文献

{"title":"A multi-factor flood resilience index for guiding disaster mitigation in densely populated region","authors":"Hao-Che Ho ,&nbsp;Ya-Ting Chang ,&nbsp;Yuan-Shun Chang","doi":"10.1016/j.ijdrr.2025.105387","DOIUrl":"10.1016/j.ijdrr.2025.105387","url":null,"abstract":"<div><div>The formulation of effective flood control strategies to enhance climate resilience necessitates the quantification of factors related to mitigation and adaptation. This study introduces a flood resilience index (FRI) that incorporates not only the physical risks of flooding but also socioeconomic conditions and time-varying factors. A variety of rainfall scenarios were considered in assessing the various elements of the FRI curve, including the hazard, nadir, and the rate at which resilience changes. The findings indicate that FRI impacts are directly influenced by rainfall intensity, while the slope of the falling limb is affected by rainfall patterns. The curve shape is defined by the perspective of the nadir. Furthermore, the evolution curves of the FRI and the hazard exhibit a phase difference due to the interaction among hazard, exposure, and sensitivity factors. These results provide crucial insights into the optimal timing of disaster relief and mitigation strategies. Under high-hazard conditions, disaster mitigation measures within adaptation pathways must focus on reducing the impact of physical flooding, while considering socioeconomic factors that significantly influence the rising limb of the FRI curve to mitigate disaster risks. In mild and moderate hazard scenarios, relief efforts should be guided by an understanding of the dominant hazard-related factors (e.g., flood depth and area) and socioeconomic stability. The proposed dynamic risk map has the potential to facilitate more effective disaster risk management and enhance overall resilience.</div></div>","PeriodicalId":13915,"journal":{"name":"International journal of disaster risk reduction","volume":"120 ","pages":"Article 105387"},"PeriodicalIF":4.2,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143609676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Urban heat stress in the context of socioeconomic and environmental challenges: Heat risk analysis and online surveys in northwestern Portugal","authors":"Hélder S. Lopes ,&nbsp;Pedro F. Silva ,&nbsp;B.G. Pinto ,&nbsp;Pilar Díaz Cuevas ,&nbsp;V. Ribeiro ,&nbsp;P. Remoaldo","doi":"10.1016/j.ijdrr.2025.105384","DOIUrl":"10.1016/j.ijdrr.2025.105384","url":null,"abstract":"<div><div>The issue of Urban Heat Stress (UHS) is becoming increasingly critical, with the rising frequency and intensity of heatwaves serving to exacerbate the problem. It is of the utmost importance to gain insight into the preparedness levels of urban populations if we are to foster resilient cities. However, research on the perceived impacts of heat among city dwellers remains limited, particularly studies that integrate both objective and subjective assessments. To address this gap in the literature, a survey was conducted in Porto and Braga, two major cities in northwestern Portugal, after categorising the risk levels associated with extreme heat. The objective of the survey was to identify personal characteristics associated with knowledge about heatwave protection and preferred communication channels for receiving related information. The online household survey yielded 613 responses, with 365 from Braga and 248 from Porto. It focused on how different socioeconomic groups are impacted by heat stress and the relationship between perceived heat impacts and indicators of exposure and vulnerability across the different groups. The findings indicated that demographic groups typically perceived as vulnerable exhibited the highest levels of exposure and susceptibility to heat stress. The study indicates that respondents identified health authorities and civil protection agents as principal sources of information during extreme heat events. This emphasises the significance of targeted communication strategies aimed at vulnerable groups through these channels to enhance their comprehension of heatwave protection measures. These insights can facilitate the enhancement of urban resilience and the reduction of the impact of UHS, underscoring the necessity for policymakers to adopt more refined strategies in managing heat stress in urban environments.</div></div>","PeriodicalId":13915,"journal":{"name":"International journal of disaster risk reduction","volume":"120 ","pages":"Article 105384"},"PeriodicalIF":4.2,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143609674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of gendered vulnerability, climate change awareness, and resilience patterns among coastal women regarding urban flooding disasters in Bozkurt, Turkiye","authors":"Gamze Dogdu Yuceturk","doi":"10.1016/j.ijdrr.2025.105380","DOIUrl":"10.1016/j.ijdrr.2025.105380","url":null,"abstract":"<div><div>This study investigates the gender-specific impacts of the August 2021 Bozkurt flood in Turkiye, a Black Sea coastal region with unique hydrological and socio-economic vulnerabilities. Data collection occurred in the year following the disaster. Employing a mixed-methods approach, integrating quantitative data from 400 women with qualitative interviews of 17 participants, the research reveals how inadequate disaster management and gender-blind adaptation strategies shaped women's experiences. While 74.3 % expressed willingness to learn about climate change and demonstrated resilience through social networks and traditional ecological knowledge, significant challenges remained. Only 32.5 % perceived equal access to government resources, with 77.8 % reporting a lack of furniture/housing support, highlighting inequities in post-disaster assistance. A critical disconnect existed between planned preparedness and community awareness: 71.3 % were uninformed about adaptation measures, and 90 % anticipated similar future impacts, indicating low confidence in current preparedness. Despite 90.8 % having heard of climate change, approximately 30 % expressed skepticism, often framing it as a political construct, underscoring the influence of misinformation and politicization. These findings demonstrate how intersecting gender norms, limited access to resources, varying levels of climate awareness, and existing patriarchal structures shaped women's disaster experiences. This study uniquely contributes original, gender-disaggregated field data from this specific coastal location, illustrating the intersection of gender and disaster and highlighting policy shortcomings. Actionable, gender-sensitive strategies are needed, including equitable resource allocation, targeted information campaigns addressing misinformation and diverse perspectives, and community-based preparedness training that utilizes women's existing knowledge and networks. These findings have broader applicability to similar coastal regions facing increasing climate change impacts.</div></div>","PeriodicalId":13915,"journal":{"name":"International journal of disaster risk reduction","volume":"120 ","pages":"Article 105380"},"PeriodicalIF":4.2,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143591507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Towards managing vulnerability. A new model of systemic vulnerability","authors":"Iuliana Armaș ,&nbsp;Andra-Cosmina Albulescu ,&nbsp;Daniela Dobre","doi":"10.1016/j.ijdrr.2025.105378","DOIUrl":"10.1016/j.ijdrr.2025.105378","url":null,"abstract":"<div><div>Systemic vulnerability represents an underexplored topic in Disaster Risk Reduction, closely linked to vulnerability dynamics. This study is the first to acquire an in-depth understanding of systemic vulnerability within multi-hazard contexts. We introduce a Systemic Vulnerability Model that builds on our prior conceptual framework of vulnerability augmentation and on Enhanced Impact Chains on vulnerability. The model integrates in-depth structural equations and multiple regressions, validated through three robust procedures. Key results show that vulnerabilities that generate numerous affects, slows down, or sharpens connections are also heavily augmented by hazard impacts. Based on these findings, we define systemic vulnerability as the enduring core of vulnerability that persists across time and space, irrespective of mitigation efforts and societal progress. Systemic vulnerability reinforces impacts by evolving into drivers of vulnerability and impacts, also hindering mitigation measures. This perspective adds to research on vulnerability to natural hazards, supporting the development of multi-risk management considering vulnerability dynamics.</div></div>","PeriodicalId":13915,"journal":{"name":"International journal of disaster risk reduction","volume":"121 ","pages":"Article 105378"},"PeriodicalIF":4.2,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143687689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Image-To-Insight: A novel workflow for converting post-disaster imagery of historic masonry structures into actionable data","authors":"Joe Kallas,&nbsp;Rebecca Napolitano","doi":"10.1016/j.ijdrr.2025.105358","DOIUrl":"10.1016/j.ijdrr.2025.105358","url":null,"abstract":"<div><div>Post-disaster damage assessment of historic masonry buildings presents unique challenges due to the complexity and variability of damage types, as well as the need for rapid and detailed evaluations based on reconnaissance data to guide recovery efforts. This paper introduces a novel methodology that integrates automated 2D image segmentation with 3D photogrammetric point clouds to detect, quantify, and visualize multi-type and multi-scale damage in historic masonry buildings. Using a Mask R-CNN-based segmentation model trained on a dataset of 6,000 images collected after the 2020 Beirut explosion, the methodology achieves accurate damage detection with an overall model test accuracy of 88%. The proposed 2D-to-3D segmentation process transfers image-based segmentation masks onto 3D point clouds, automating the spatially precise classification of 7 different damage types. The segmented 3D models are further processed to extract structured data, including dimensions of individual damage instances, enabling the generation of damage inventories critical for restoration planning. Future applications of this methodology could extend to other historic and modern structures by incorporating additional datasets through transfer learning. By integrating advanced computer vision with photogrammetric modeling, this research contributes a transformative tool for post-disaster resilience planning, bridging the gap between manual assessments and automated workflows for recovery recommendations.</div></div>","PeriodicalId":13915,"journal":{"name":"International journal of disaster risk reduction","volume":"120 ","pages":"Article 105358"},"PeriodicalIF":4.2,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143591436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Flood risk perception and preparedness in Nicaraguan educational contexts: A study of student perspectives","authors":"Gema Velásquez-Espinoza ,&nbsp;Irasema Alcántara-Ayala","doi":"10.1016/j.ijdrr.2025.105375","DOIUrl":"10.1016/j.ijdrr.2025.105375","url":null,"abstract":"<div><div>This study examines student perceptions of flood risk and preparedness in Nicaraguan schools, focusing on Tola, a flood-prone rural municipality. It explores two key aspects: students' awareness of flood hazards and school preparedness measures and the effectiveness of communication strategies for disaster risk education. Using an exploratory design, the study surveyed 197 primary and secondary students across six schools, assessing their risk perceptions, experiences, and preparedness actions. Findings reveal varying levels of awareness, with many students lacking confidence in their schools’ flood preparedness. Disparities in communication strategies highlight strengths and areas for improvement in DRR education. The study recommends enhancing disaster resilience through more effective, student-centred educational approaches.</div></div>","PeriodicalId":13915,"journal":{"name":"International journal of disaster risk reduction","volume":"120 ","pages":"Article 105375"},"PeriodicalIF":4.2,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143577962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The European emergency number 112: Exploring the potential of crowd-sourced information for emergency management","authors":"Giuseppe Lelow,&nbsp;Fausto Marincioni","doi":"10.1016/j.ijdrr.2025.105376","DOIUrl":"10.1016/j.ijdrr.2025.105376","url":null,"abstract":"<div><div>The rapid evolution of social media has transformed the landscape of emergency management by enhancing information sharing during critical events. However, the pervasive nature of social media also presents challenges related to the accuracy, reliability, and timeliness of the information it provides. In contrast, the European Emergency Number 112, designed to gather precise, standardized data, offers a potential data source to social media information, by managing emergency calls, in crisis situations. This study investigates the hypothesis that crowdsourced information from 112 emergency calls may provide superior situational awareness when compared to the content available on social media. Three primary research questions addressed: (1) What key information from social media supports emergency response, and how is it extracted? (2) What key information from 112 calls is essential for effective response, and how is it extracted? (3) How do 112 calls and social media content compare in terms of information accuracy and reliability? The case study to test such hypothesis was the October 2018 Vaia Storm which hit the Ligurian region in Italy. The results show that 112 emergency calls provided more accurate situational information, while the social media data required higher processing, and it was not always reliable. These findings highlight the potential of the 112 system to enhance emergency response.</div></div>","PeriodicalId":13915,"journal":{"name":"International journal of disaster risk reduction","volume":"120 ","pages":"Article 105376"},"PeriodicalIF":4.2,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"How help-seeking information spreads on social media during disasters: The role of vulnerable groups and information features","authors":"Sini Su ,&nbsp;Jinjin Zhou ,&nbsp;Zhijin Zhong ,&nbsp;Jiajia Zhang","doi":"10.1016/j.ijdrr.2025.105374","DOIUrl":"10.1016/j.ijdrr.2025.105374","url":null,"abstract":"<div><div>Amid the increasing frequency of disasters, social media serves as a vital platform for the dissemination of help-seeking information. However, the uneven diffusion of such information often leads to unequal access to assistance for victims. Grounded in altruism and dual-system theory, this study investigates the factors and mechanisms driving the diffusion of help-seeking information during disasters, utilizing data from the \"7.20″ Henan Rainstorm event on Sina Weibo. The findings reveal that the inclusion of vulnerable groups (e.g., senior citizens, children, and patients) in posts significantly increases retweet counts. Additionally, information features—intuitive (e.g., emojis, credibility labels) and rational (e.g., material in need, victims' addresses)—enhance retweet counts by activating cognitive processing. Notably, help-seeking posts involving vulnerable groups are more likely to include both intuitive and rational features compared to those without such groups. Nevertheless, the impact of vulnerable groups on retweeting diminishes in the presence of rational features, as heightened emotional content may divert cognitive resources from rational processing. These findings enrich the psychological mechanisms of dual-system theory and offer practical insights for optimizing help-seeking strategies on social media during disasters.</div></div>","PeriodicalId":13915,"journal":{"name":"International journal of disaster risk reduction","volume":"120 ","pages":"Article 105374"},"PeriodicalIF":4.2,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143620906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Relationship between vehicle probe data and flooding conditions for developing flood inundation monitoring method","authors":"Tatsunori Hiramoto ,&nbsp;Riku Kubota ,&nbsp;Jin Kashiwada ,&nbsp;Mayumi Mizuno ,&nbsp;Koji Nishi ,&nbsp;Mamoru Tanaka ,&nbsp;Yasuo Nihei","doi":"10.1016/j.ijdrr.2025.105373","DOIUrl":"10.1016/j.ijdrr.2025.105373","url":null,"abstract":"<div><div>Heavy rainfall disasters caused by climate change have become increasingly severe and frequent, causing extensive flood damage worldwide. Understanding when and where river flooding occurs and how far it has spread in real time is essential for mitigating human suffering. This study aims to clarify the relationship between vehicle traffic information obtained from vehicle probe data and actual flood inundation conditions for real-time flood inundation monitoring using vehicle probe data. To this end, large-scale flood inundation in the Kuma River in Kyushu District, Japan (July 2020) was set as the target flood condition. The inundation depth was extracted from the results of the integrated analysis of river and inundation flows in and around the Kuma River using a numerical model and compared with vehicle traffic data. The results show that the presence or absence of a vehicle traffic area corresponds to the expansion or contraction of the inundation area during flooding, verifying the validity of the inundation area estimation using vehicle traffic information. The results indicate that there is a negative correlation between vehicle speed, flow velocity, and inundation depth, and vehicle speed is an important indicator to understand flood inundation conditions. Road links with no vehicle traffic or vehicle speeds below 20 km/h at selected road classes are considered inundated and organized into a 250 m resolution mesh. The results quantitatively show that the inundation area could be approximately estimated, suggesting the validity of this inundation area estimation method.</div></div>","PeriodicalId":13915,"journal":{"name":"International journal of disaster risk reduction","volume":"120 ","pages":"Article 105373"},"PeriodicalIF":4.2,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143609675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Extracting information from reddit for emergency management - A case study on British Columbia wildfire","authors":"Alireza Arvandi ,&nbsp;Ahmed Al Marouf ,&nbsp;Qiaowang Li ,&nbsp;Jon Rokne ,&nbsp;Reda Alhajj","doi":"10.1016/j.ijdrr.2025.105354","DOIUrl":"10.1016/j.ijdrr.2025.105354","url":null,"abstract":"<div><div>The advent of social media has revolutionized the way information is dissemi-nated and consumed during emergency situations, such as wildfires. This study provides an in-depth analysis of public sentiment and communication patterns on Reddit during wildfire events in British Columbia (BC), Canada. Utilizing a comprehensive methodological framework, the research employs data mining techniques, sentiment analysis, and comparative methods to explore the digi-tal discourse surrounding wildfires. The methodology integrates topic mining, keyword extraction, and sentiment analysis to evaluate the nature and scope of discussions within Reddit communities. Subreddit activity is scrutinized to under-stand regional and national concerns, while sentiment analysis offers insights into the emotional undertones of the discussions. A comparative analysis between Reddit posts and news articles is conducted to assess the interplay between social media narratives and traditional media reporting. The findings reveal a strong regional focus in discussions, reflecting the direct impact of wildfires on local communities. National concern is also evident, with broader societal implications being discussed in both general and niche subreddits. Temporal analysis of sub-reddit activity indicates that engagement is predominantly event-driven, with implications for emergency services, content creators, and community managers.</div></div>","PeriodicalId":13915,"journal":{"name":"International journal of disaster risk reduction","volume":"120 ","pages":"Article 105354"},"PeriodicalIF":4.2,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143577960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}