Pub Date : 2025-09-13DOI: 10.1016/j.pdisas.2025.100466
Willy Blaise Ineza , Emelyne Clarisse Izere , Roland Sonnenschein , Collins B. Kukunda , Fred Tumwebaze , Richard Shumbusho , Khamarrul Azahari Razak
This study provides a new insight into landslide advancement based on the state-of-art mapping technology, time-series imagery, and disaster informatics in Rwanda, where 40 % of its lands susceptible to landslides. This is the first nationally supported and locally evidenced use-case of the iMaster/DocuCam, a scalable system for landslide monitoring and detection in the African continent, originally developed for advanced industrial automation. The system continuously collects high-resolution images and weather data to monitor landslides and alert relevant authorities. We used “Quadtree” Computer Vision algorithms to automatically detect landslides by pre-processing images and measuring brownish pixels. Using statistical modelling, comparison with previous images is made and deviation in the number of brown pixels is determined. If deviation exceeds the threshold, a landslide is detected, and a warning is sent out. The results are also stored in the Open-Source SQL database and accessible via web-based Graphical User Interface. We also explored user requirements, needs and demands of stakeholders at national and local level for developing the people-centered early warning system in Rwanda, as promoted by the Sendai Framework. This study manifests the commitments of the Rwandan government to accelerate the localized disaster risk reduction action for societal resilience in the tropics.
{"title":"Application of geospatial and ICT technologies for landslide disaster risk reduction in Rwanda","authors":"Willy Blaise Ineza , Emelyne Clarisse Izere , Roland Sonnenschein , Collins B. Kukunda , Fred Tumwebaze , Richard Shumbusho , Khamarrul Azahari Razak","doi":"10.1016/j.pdisas.2025.100466","DOIUrl":"10.1016/j.pdisas.2025.100466","url":null,"abstract":"<div><div>This study provides a new insight into landslide advancement based on the state-of-art mapping technology, time-series imagery, and disaster informatics in Rwanda, where 40 % of its lands susceptible to landslides. This is the first nationally supported and locally evidenced use-case of the iMaster/DocuCam, a scalable system for landslide monitoring and detection in the African continent, originally developed for advanced industrial automation. The system continuously collects high-resolution images and weather data to monitor landslides and alert relevant authorities. We used “Quadtree” Computer Vision algorithms to automatically detect landslides by pre-processing images and measuring brownish pixels. Using statistical modelling, comparison with previous images is made and deviation in the number of brown pixels is determined. If deviation exceeds the threshold, a landslide is detected, and a warning is sent out. The results are also stored in the Open-Source SQL database and accessible via web-based Graphical User Interface. We also explored user requirements, needs and demands of stakeholders at national and local level for developing the people-centered early warning system in Rwanda, as promoted by the Sendai Framework. This study manifests the commitments of the Rwandan government to accelerate the localized disaster risk reduction action for societal resilience in the tropics.</div></div>","PeriodicalId":52341,"journal":{"name":"Progress in Disaster Science","volume":"28 ","pages":"Article 100466"},"PeriodicalIF":3.8,"publicationDate":"2025-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145266628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Drought is a significant global issue for ecosystems and the environment, particularly in karst regions. This study aimed to investigate the tendency of Generation Z (Gen Z) to utilize social media in addressing drought in tropical regions. Data collection was conducted through structured interviews with at least 60 respondents belonging to the Gen Z group. An exploratory-descriptive approach was employed to analyze the trends in social media use among Gen Z and their perceptions of the drought issue. Furthermore, a strategy was devised to increase Gen Z's awareness of drought through social media using the causal loop diagram (CLD) approach. The study results showed that Gen Z uses TikTok (46.5 %) and Instagram (20.6 %) more frequently on social media. Gen Z's response to the drought issue on social media tends to involve complaining (25 %) and expressing concerns (18 %). Gen Z believes that actions that can be taken to overcome drought include constructing new wells, implementing water management strategies, reservoir construction, and other conservation efforts. Future drought campaigns targeting youth can use the study's findings as evaluation material.
{"title":"Identification of social media approach for strengthening the generation Z disaster capacity on drought issues","authors":"Puspita Indra Wardhani , Siti Azizah Susilawati , Yunus Aris Wibowo , Ratih Puspita Dewi , Wahyu Widiyatmoko , Siti Hadiyati Nur Hafida , Edwin Maulana , Sri Utami , Isna Hayatun","doi":"10.1016/j.pdisas.2025.100467","DOIUrl":"10.1016/j.pdisas.2025.100467","url":null,"abstract":"<div><div>Drought is a significant global issue for ecosystems and the environment, particularly in karst regions. This study aimed to investigate the tendency of Generation Z (Gen Z) to utilize social media in addressing drought in tropical regions. Data collection was conducted through structured interviews with at least 60 respondents belonging to the Gen Z group. An exploratory-descriptive approach was employed to analyze the trends in social media use among Gen Z and their perceptions of the drought issue. Furthermore, a strategy was devised to increase Gen Z's awareness of drought through social media using the causal loop diagram (CLD) approach. The study results showed that Gen Z uses TikTok (46.5 %) and Instagram (20.6 %) more frequently on social media. Gen Z's response to the drought issue on social media tends to involve complaining (25 %) and expressing concerns (18 %). Gen Z believes that actions that can be taken to overcome drought include constructing new wells, implementing water management strategies, reservoir construction, and other conservation efforts. Future drought campaigns targeting youth can use the study's findings as evaluation material.</div></div>","PeriodicalId":52341,"journal":{"name":"Progress in Disaster Science","volume":"28 ","pages":"Article 100467"},"PeriodicalIF":3.8,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145105265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study examined health issues recorded by Emergency Medical Teams during four large-scale disasters in Japan (2019–2021) and their relation to the disaster. Logistic regression analyses were conducted on data from the Japan Surveillance in Post-Extreme Emergencies and Disasters system to examine associations between specific health issues and their relation to the disaster. Of the 822 health consultations recorded, 17.5 %, 51.3 %, and 31.1 % reported health issues directly related, indirectly related, and unrelated to the disaster, respectively. Minor injury (adjusted odds ratio [AOR] = 4.65, 95 % confidence interval [CI] = 2.75–7.86), wound (AOR = 5.64, 95 % CI = 3.31–9.60), and moderate injury (AOR = 35.97, 95 % CI = 5.47–236.63) were significantly associated with a direct relation to the disaster. Hypertension (AOR = 1.69, 95 % CI = 1.05–2.71), disaster-related stress symptoms (AOR = 2.32, 95 % CI = 1.37–3.90), and treatment interruption (AOR = 2.05, 95 % CI = 1.07–3.91) were significantly associated with an indirect relation to the disaster. Fever (AOR = 2.89, 95 % CI = 1.45–5.39) and skin disease (AOR = 2.43, 95 % CI = 1.34–4.42) were significantly associated with a non-relation to the disaster. These findings highlight the multifaceted nature of health issues following disasters, emphasizing the need for response strategies that address not only direct health effects, but also indirectly related and non-disaster-related health issues.
本研究调查了紧急医疗队在日本(2019-2021年)四次大规模灾害期间记录的健康问题及其与灾害的关系。对来自日本极端紧急情况和灾害后监测系统的数据进行了逻辑回归分析,以检查特定健康问题与其与灾害的关系之间的关联。在记录在案的822次健康咨询中,分别有17.5%、51.3%和31.1%报告了与灾难直接相关、间接相关和无关的健康问题。轻微损伤(调整优势比[AOR] = 4.65, 95%可信区间[CI] = 2.75 ~ 7.86)、伤口(AOR = 5.64, 95% CI = 3.31 ~ 9.60)和中度损伤(AOR = 35.97, 95% CI = 5.47 ~ 236.63)与灾害直接相关。高血压(AOR = 1.69, 95% CI = 1.05-2.71)、灾难相关应激症状(AOR = 2.32, 95% CI = 1.37-3.90)和治疗中断(AOR = 2.05, 95% CI = 1.07-3.91)与灾难的间接关系显著相关。发热(AOR = 2.89, 95% CI = 1.45-5.39)和皮肤病(AOR = 2.43, 95% CI = 1.34-4.42)与灾难无关。这些调查结果突出了灾后健康问题的多面性,强调需要制定应对战略,不仅处理直接健康影响,而且处理间接相关和与灾害无关的健康问题。
{"title":"Health issues treated by emergency medical teams following natural disasters in Japan and their relation to the disaster","authors":"Ami Fukunaga , Fu Tarui , Takahito Yoshida , Inn Kynn Khaing , Odgerel Chimed-Ochir , Yui Yumiya , Akihiro Taji , Kouki Akahoshi , Yoshiki Toyokuni , Kayako Chishima , Seiji Mimura , Akinori Wakai , Hisayoshi Kondo , Yuichi Koido , Tatsuhiko Kubo","doi":"10.1016/j.pdisas.2025.100468","DOIUrl":"10.1016/j.pdisas.2025.100468","url":null,"abstract":"<div><div>This study examined health issues recorded by Emergency Medical Teams during four large-scale disasters in Japan (2019–2021) and their relation to the disaster. Logistic regression analyses were conducted on data from the Japan Surveillance in Post-Extreme Emergencies and Disasters system to examine associations between specific health issues and their relation to the disaster. Of the 822 health consultations recorded, 17.5 %, 51.3 %, and 31.1 % reported health issues directly related, indirectly related, and unrelated to the disaster, respectively. Minor injury (adjusted odds ratio [AOR] = 4.65, 95 % confidence interval [CI] = 2.75–7.86), wound (AOR = 5.64, 95 % CI = 3.31–9.60), and moderate injury (AOR = 35.97, 95 % CI = 5.47–236.63) were significantly associated with a direct relation to the disaster. Hypertension (AOR = 1.69, 95 % CI = 1.05–2.71), disaster-related stress symptoms (AOR = 2.32, 95 % CI = 1.37–3.90), and treatment interruption (AOR = 2.05, 95 % CI = 1.07–3.91) were significantly associated with an indirect relation to the disaster. Fever (AOR = 2.89, 95 % CI = 1.45–5.39) and skin disease (AOR = 2.43, 95 % CI = 1.34–4.42) were significantly associated with a non-relation to the disaster. These findings highlight the multifaceted nature of health issues following disasters, emphasizing the need for response strategies that address not only direct health effects, but also indirectly related and non-disaster-related health issues.</div></div>","PeriodicalId":52341,"journal":{"name":"Progress in Disaster Science","volume":"28 ","pages":"Article 100468"},"PeriodicalIF":3.8,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145046181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-01DOI: 10.1016/j.pdisas.2025.100465
Bo Shen , Lishuo Guo , Shuai Cui , Yi Peng
Shocks from natural disasters and emergencies broadly affect residents' perceptions of uncertainty, dampening their consumption intentions. Yet, few studies have examined the relationship between community resilience and residents' consumption intentions. This study explored the roles of physical spatial resilience and social capital resilience in influencing residents' consumption intentions with survey data from residents in the Beijing-Tianjin-Hebei region of China. The results generated from structural equation modeling indicate that both social capital resilience and physical space resilience significantly influence residents' consumption intentions, with social capital resilience having a stronger indirect effect and physical spatial resilience exhibiting a more pronounced direct effect. These findings highlight the value of resilient community development in mitigating uncertainty and fostering consumption.
{"title":"Association of community resilience and residents' consumption intentions: A study in the Beijing-Tianjin-Hebei region of China","authors":"Bo Shen , Lishuo Guo , Shuai Cui , Yi Peng","doi":"10.1016/j.pdisas.2025.100465","DOIUrl":"10.1016/j.pdisas.2025.100465","url":null,"abstract":"<div><div>Shocks from natural disasters and emergencies broadly affect residents' perceptions of uncertainty, dampening their consumption intentions. Yet, few studies have examined the relationship between community resilience and residents' consumption intentions. This study explored the roles of physical spatial resilience and social capital resilience in influencing residents' consumption intentions with survey data from residents in the Beijing-Tianjin-Hebei region of China. The results generated from structural equation modeling indicate that both social capital resilience and physical space resilience significantly influence residents' consumption intentions, with social capital resilience having a stronger indirect effect and physical spatial resilience exhibiting a more pronounced direct effect. These findings highlight the value of resilient community development in mitigating uncertainty and fostering consumption.</div></div>","PeriodicalId":52341,"journal":{"name":"Progress in Disaster Science","volume":"28 ","pages":"Article 100465"},"PeriodicalIF":3.8,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145049085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Ecosystem-based Disaster Risk Reduction (Eco-DRR) approach is widely used for slope stabilization and erosion control, yet its long-term effectiveness, structural integrity, and socioeconomic benefits remain insufficiently understood. This study qualitatively assesses countermeasures to geohazards that were implemented at three sites in Nepal as part of the Japan International Cooperation Agency's (JICA's) technical cooperation projects, using locally available materials (rock-filled wire gabions and vegetation). Photo-based comparisons revealed an increase in vegetation cover over 20 to 30 years in previously degraded areas. Gabion check dams stabilized gullies and trapped sediment, but experienced deterioration due to wire corrosion and breakage. A debris flow at Nallu Khola triggered by torrential rainfall on 26–28 September 2024 further exposed the vulnerability of these structures to extreme events, emphasizing the need for more resilient designs. Vegetation-based countermeasures provided livelihood benefits by supplying bamboo for fencing, livestock feed, and household materials. However, economic development has shifted residents toward market-based livelihoods, reducing their reliance on these resources. The sustained activities of the JICA-established user groups highlight the potential for long-term community engagement in land and forest management. While qualitative data offer initial insights, quantitative assessments are needed for precise and standardized evaluations of the countermeasures' effectiveness.
{"title":"Assessing the long-term effectiveness and socioeconomic benefits associated with ecosystem-based disaster risk reduction measures aimed at mitigating the impact of sediment-related events in Nepal","authors":"Hayato Kakinuma , Ching-Ying Tsou , Daisuke Higaki , Reona Kawakami , Chandra Sekar Gautum","doi":"10.1016/j.pdisas.2025.100464","DOIUrl":"10.1016/j.pdisas.2025.100464","url":null,"abstract":"<div><div>The Ecosystem-based Disaster Risk Reduction (Eco-DRR) approach is widely used for slope stabilization and erosion control, yet its long-term effectiveness, structural integrity, and socioeconomic benefits remain insufficiently understood. This study qualitatively assesses countermeasures to geohazards that were implemented at three sites in Nepal as part of the Japan International Cooperation Agency's (JICA's) technical cooperation projects, using locally available materials (rock-filled wire gabions and vegetation). Photo-based comparisons revealed an increase in vegetation cover over 20 to 30 years in previously degraded areas. Gabion check dams stabilized gullies and trapped sediment, but experienced deterioration due to wire corrosion and breakage. A debris flow at Nallu Khola triggered by torrential rainfall on 26–28 September 2024 further exposed the vulnerability of these structures to extreme events, emphasizing the need for more resilient designs. Vegetation-based countermeasures provided livelihood benefits by supplying bamboo for fencing, livestock feed, and household materials. However, economic development has shifted residents toward market-based livelihoods, reducing their reliance on these resources. The sustained activities of the JICA-established user groups highlight the potential for long-term community engagement in land and forest management. While qualitative data offer initial insights, quantitative assessments are needed for precise and standardized evaluations of the countermeasures' effectiveness.</div></div>","PeriodicalId":52341,"journal":{"name":"Progress in Disaster Science","volume":"28 ","pages":"Article 100464"},"PeriodicalIF":3.8,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145019544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-08-29DOI: 10.1016/j.pdisas.2025.100463
Sunita Ghimire, Hari Ram Parajuli, Prem Nath Maskey
Historical records indicate that large-magnitude earthquakes have frequently impacted Nepal, leading to widespread destruction and significant loss of life. This study quantifies potential earthquake losses for residential masonry structures by analyzing damage data from the 2015 Gorkha earthquake across 31 affected districts. The residential buildings in the study area are categorized into seven typologies based on construction materials and the number of stories. Damage states were classified into five grades using the European Macroseismic Scale (EMS-98). Based on these classifications, empirical fragility curves were developed. These curves, integrated with exposure, consequence, vulnerability, and fault rupture models, served as the foundation for a loss estimation analysis. We examined three distinct earthquake scenarios– two historical and one hypothetical - that are representative of seismic activity in central, eastern, and western Nepal. Although post-2015 Gorkha earthquake reconstruction efforts resulted in approximately 1,000,000 seismically compliant residential buildings, an estimated 814,690 pre-existing masonry buildings remain highly vulnerable due to their noncompliance with seismic provisions. This study provides municipality-level economic loss estimations, as well as damage distributions for residential masonry buildings, for three scenarios, marking the first time this has been done in the study area.
{"title":"Earthquake loss estimation due to damage to residential masonry buildings during scenario earthquakes in Nepal","authors":"Sunita Ghimire, Hari Ram Parajuli, Prem Nath Maskey","doi":"10.1016/j.pdisas.2025.100463","DOIUrl":"10.1016/j.pdisas.2025.100463","url":null,"abstract":"<div><div>Historical records indicate that large-magnitude earthquakes have frequently impacted Nepal, leading to widespread destruction and significant loss of life. This study quantifies potential earthquake losses for residential masonry structures by analyzing damage data from the 2015 Gorkha earthquake across 31 affected districts. The residential buildings in the study area are categorized into seven typologies based on construction materials and the number of stories. Damage states were classified into five grades using the European Macroseismic Scale (EMS-98). Based on these classifications, empirical fragility curves were developed. These curves, integrated with exposure, consequence, vulnerability, and fault rupture models, served as the foundation for a loss estimation analysis. We examined three distinct earthquake scenarios– two historical and one hypothetical - that are representative of seismic activity in central, eastern, and western Nepal. Although post-2015 Gorkha earthquake reconstruction efforts resulted in approximately 1,000,000 seismically compliant residential buildings, an estimated 814,690 pre-existing masonry buildings remain highly vulnerable due to their noncompliance with seismic provisions. This study provides municipality-level economic loss estimations, as well as damage distributions for residential masonry buildings, for three scenarios, marking the first time this has been done in the study area.</div></div>","PeriodicalId":52341,"journal":{"name":"Progress in Disaster Science","volume":"28 ","pages":"Article 100463"},"PeriodicalIF":3.8,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145026320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Entrepreneurs—especially early entrepreneurs—face numerous challenges throughout their entrepreneurial journey. These challenges and adversities can create distinct personal and professional strains resulting in poor physical, mental, and emotional health. Thus, entrepreneurs must exercise resilience-building to properly prepare for, respond to, and recover from potential adversities. We frame adversities as “environmental shocks” to the entrepreneurial ecosystem using a disaster and emergency management and social work conceptual lens. Entrepreneurs subjected to these shocks then adopt resilience-building strategies as protective factors against future shocks, affording them the ability to bounce back or “bounce forward.” Using semi-structured interviews, we examined the types of adversities and resilience-building strategies employed by 27 Canadian entrepreneurs. Results indicated two forms of adversity and resilience-building—personal and professional— and the interplay within and between them. Personal and professional resilience included seeking therapy and financial preparedness while personal and professional adversity included isolation and problematic co‑leader relationships. Findings from the study call for entrepreneurial-specific social service and training programs which address the manifestations of adversity and offer practical strategies to enhance resilience. This research highlights a unique view of entrepreneurial adversity and resilience and offers a foundation for future research on Canadian entrepreneurial contexts.
{"title":"Adversity and resilience-building in the Canadian entrepreneurial ecosystem: Using disaster, emergency management and social work to understand entrepreneurs' experiences","authors":"Lea Tufford , Kyle Breen , Jenna Hepburn , Haorui Wu","doi":"10.1016/j.pdisas.2025.100461","DOIUrl":"10.1016/j.pdisas.2025.100461","url":null,"abstract":"<div><div>Entrepreneurs—especially early entrepreneurs—face numerous challenges throughout their entrepreneurial journey. These challenges and adversities can create distinct personal and professional strains resulting in poor physical, mental, and emotional health. Thus, entrepreneurs must exercise resilience-building to properly prepare for, respond to, and recover from potential adversities. We frame adversities as “environmental shocks” to the entrepreneurial ecosystem using a disaster and emergency management and social work conceptual lens. Entrepreneurs subjected to these shocks then adopt resilience-building strategies as protective factors against future shocks, affording them the ability to bounce back or “bounce forward.” Using semi-structured interviews, we examined the types of adversities and resilience-building strategies employed by 27 Canadian entrepreneurs. Results indicated two forms of adversity and resilience-building—personal and professional— and the interplay within and between them. Personal and professional resilience included seeking therapy and financial preparedness while personal and professional adversity included isolation and problematic co‑leader relationships. Findings from the study call for entrepreneurial-specific social service and training programs which address the manifestations of adversity and offer practical strategies to enhance resilience. This research highlights a unique view of entrepreneurial adversity and resilience and offers a foundation for future research on Canadian entrepreneurial contexts.</div></div>","PeriodicalId":52341,"journal":{"name":"Progress in Disaster Science","volume":"28 ","pages":"Article 100461"},"PeriodicalIF":3.8,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145049086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Floods are among the most frequent and destructive natural hazards triggered by snowmelt, intense and prolonged precipitation. This study aimed to delineate flood-prone areas across Texas, USA, by integrating geospatial data with a multi-criteria decision analysis (MCDA) approach. The Analytical Hierarchy Process (AHP) was employed within this framework to evaluate systematically and weight key flood conditioning factors. The factor weights in the AHP were established based on insights from expert evaluations, literature, and feedback from relevant public institutions. Flood susceptibility mapping effectiveness was assessed through the Receiver Operating Characteristic (ROC) curve, focusing on the Area under the Curve (AUC) metric. A multi-criteria weighted overlay method was used to combine various geospatial layers. The flood susceptibility map was validated using historical storm event data from the National Centers for Environmental Information (NCEI), covering the period from 1985 to the present. The final susceptibility map achieved a high AUC score of 0.90, reflecting a robust agreement between the model's predictions and real-world flood events. The most flood-vulnerable basins include the Sulphur, Cypress, Trinity, Neches-Trinity, Sabine, Guadalupe, and Neches basins, which stand out as the most at-risk areas identified in the analysis. The spatial analysis of the flood susceptibility map revealed that approximately 62 % of the study area falls under high flood risk. Thus, priority should be given to implementing targeted flood management and mitigation strategies in the high-risk river basins.
{"title":"Integrating multi-criteria decision analysis and geospatial data for flood susceptibility mapping in Texas, USA","authors":"Birhan Getachew Tikuye , Ram Lakhan Ray , Nimal Shantha Abeysingha , Sanjita Gurau","doi":"10.1016/j.pdisas.2025.100462","DOIUrl":"10.1016/j.pdisas.2025.100462","url":null,"abstract":"<div><div>Floods are among the most frequent and destructive natural hazards triggered by snowmelt, intense and prolonged precipitation. This study aimed to delineate flood-prone areas across Texas, USA, by integrating geospatial data with a multi-criteria decision analysis (MCDA) approach. The Analytical Hierarchy Process (AHP) was employed within this framework to evaluate systematically and weight key flood conditioning factors. The factor weights in the AHP were established based on insights from expert evaluations, literature, and feedback from relevant public institutions. Flood susceptibility mapping effectiveness was assessed through the Receiver Operating Characteristic (ROC) curve, focusing on the Area under the Curve (AUC) metric. A multi-criteria weighted overlay method was used to combine various geospatial layers. The flood susceptibility map was validated using historical storm event data from the National Centers for Environmental Information (NCEI), covering the period from 1985 to the present. The final susceptibility map achieved a high AUC score of 0.90, reflecting a robust agreement between the model's predictions and real-world flood events. The most flood-vulnerable basins include the Sulphur, Cypress, Trinity, Neches-Trinity, Sabine, Guadalupe, and Neches basins, which stand out as the most at-risk areas identified in the analysis. The spatial analysis of the flood susceptibility map revealed that approximately 62 % of the study area falls under high flood risk. Thus, priority should be given to implementing targeted flood management and mitigation strategies in the high-risk river basins.</div></div>","PeriodicalId":52341,"journal":{"name":"Progress in Disaster Science","volume":"28 ","pages":"Article 100462"},"PeriodicalIF":3.8,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144907283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-08-15DOI: 10.1016/j.pdisas.2025.100460
Daile Zhang , Mary Ann Cooper , Ronald L. Holle , Mitchell Guthrie
In some countries, lightning causes more deaths than other weather events more commonly thought of as disasters, so there is a need for safe refuges during thunderstorms. Lightning also occurs with volcanoes, hurricanes, tornadoes and other disasters so that disaster refuges in most areas should have lightning protection systems designed consistent with international standards. Of special concern is that the term ‘shelter’ in the U.S. and some other English-speaking countries is associated with many small structures that are nearly always unsafe from lightning. Factors that contribute to lightning risk are listed, as well as the importance of recognizing the mechanisms of lightning injury. Photographic examples are included of structures that are unsafe from lightning in several countries. How to make such structures safe from lightning is described as well as a brief overview of lightning injury prevention.
{"title":"Use caution with the word ‘shelter’ in lightning safety","authors":"Daile Zhang , Mary Ann Cooper , Ronald L. Holle , Mitchell Guthrie","doi":"10.1016/j.pdisas.2025.100460","DOIUrl":"10.1016/j.pdisas.2025.100460","url":null,"abstract":"<div><div>In some countries, lightning causes more deaths than other weather events more commonly thought of as disasters, so there is a need for safe refuges during thunderstorms. Lightning also occurs with volcanoes, hurricanes, tornadoes and other disasters so that disaster refuges in most areas should have lightning protection systems designed consistent with international standards. Of special concern is that the term ‘shelter’ in the U.S. and some other English-speaking countries is associated with many small structures that are nearly always unsafe from lightning. Factors that contribute to lightning risk are listed, as well as the importance of recognizing the mechanisms of lightning injury. Photographic examples are included of structures that are unsafe from lightning in several countries. How to make such structures safe from lightning is described as well as a brief overview of lightning injury prevention.</div></div>","PeriodicalId":52341,"journal":{"name":"Progress in Disaster Science","volume":"28 ","pages":"Article 100460"},"PeriodicalIF":3.8,"publicationDate":"2025-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144902586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Amid increasing extreme weather events driven by global climate change, pre-emptive emergency drills are vital for strengthening disaster resilience. This paper focuses on risk identification and prevention in multi-level flood and typhoon prevention emergency drills, aiming to achieve effective risk management across administrative levels. Through literature review and expert consultation, 24 risk factors were hierarchically identified. A quantitative risk assessment model was developed by integrating the risk matrix and cloud model eigenvalues. The results show that risks are the most serious at municipal-level drills, with 20 risk factors (79.17 % of the total) at Level-III and above, decreasing at lower administrative levels (where risk level are categorized into Level-I (Major), Level-II (Large), Level-III (General), and Level-IV (Low) based on the risk matrix integrating likelihood and consequence levels, and Level-III and above risks may trigger resource wastage, drill failure, or even personnel casualties). Temporally, 39 risk factors at Level-III and above were concentrated in preparation stages across all administrative levels, declining to 3 such risk factors during rectification stage. Spatially, the number of risk factors peaked during the municipal-level and county-level preparation stages (11 risk factors respectively at Level-III and above), with their quantity gradually decreasing as the administrative level decreases and drill stages advance. Based on these findings, a systematic risk prevention matrix is proposed to offer targeted guidance for multi-level flood and typhoon prevention emergency drills in addressing climate change-induced disaster challenges.
{"title":"Risk identification and prevention of multi-level flood and typhoon prevention emergency drills","authors":"Feifeng Cao , Changhui Chen , Conglin Zhang , Jianwu Xing","doi":"10.1016/j.pdisas.2025.100458","DOIUrl":"10.1016/j.pdisas.2025.100458","url":null,"abstract":"<div><div>Amid increasing extreme weather events driven by global climate change, pre-emptive emergency drills are vital for strengthening disaster resilience. This paper focuses on risk identification and prevention in multi-level flood and typhoon prevention emergency drills, aiming to achieve effective risk management across administrative levels. Through literature review and expert consultation, 24 risk factors were hierarchically identified. A quantitative risk assessment model was developed by integrating the risk matrix and cloud model eigenvalues. The results show that risks are the most serious at municipal-level drills, with 20 risk factors (79.17 % of the total) at Level-III and above, decreasing at lower administrative levels (where risk level are categorized into Level-I (Major), Level-II (Large), Level-III (General), and Level-IV (Low) based on the risk matrix integrating likelihood and consequence levels, and Level-III and above risks may trigger resource wastage, drill failure, or even personnel casualties). Temporally, 39 risk factors at Level-III and above were concentrated in preparation stages across all administrative levels, declining to 3 such risk factors during rectification stage. Spatially, the number of risk factors peaked during the municipal-level and county-level preparation stages (11 risk factors respectively at Level-III and above), with their quantity gradually decreasing as the administrative level decreases and drill stages advance. Based on these findings, a systematic risk prevention matrix is proposed to offer targeted guidance for multi-level flood and typhoon prevention emergency drills in addressing climate change-induced disaster challenges.</div></div>","PeriodicalId":52341,"journal":{"name":"Progress in Disaster Science","volume":"28 ","pages":"Article 100458"},"PeriodicalIF":3.8,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144866274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}