Pub Date : 2023-12-31DOI: 10.9798/kosham.2023.23.6.1
Hyoseo An, Taesang Ahn, Sumin Kang, Jiuk Shin, Kihak Lee
This study rigorously assessed the structural performance of the wall frame system through a combination of experimentation and simulation under cyclic loading. Hence, three distinct specimens were developed: the original frame (referred to as the “as-built frame”), the retrofitted frame with ENTA damper system (referred to as “ENTA-W”), and the retrofitted frame with both ENTA damper system and steel frame (referred to as “ENTA-WR’). The experimental findings revealed that the retrofitted frames outperformed the as-built frame regarding energy dissipation ability, initial stiffness, and maximum load capacity. A detailed analysis and comparison between experimental and finite element analysis results were conducted. Notably, disparities between the experimental and analytical outcomes were lower than or near five percent regarding energy dissipation capacity, initial stiffness, and maximum strength. Moreover, the anticipated failure pattern of the concrete section and the stress distribution of the reinforcing bar closely mirrored those observed in the experiment.
本研究通过实验和模拟相结合的方法，严格评估了墙体框架系统在循环荷载下的结构性能。因此，开发了三种不同的试样：原始框架（称为 "原建框架"）、带有 ENTA 阻尼器系统的改装框架（称为 "ENTA-W"）以及带有 ENTA 阻尼器系统和钢框架的改装框架（称为 "ENTA-WR"）。实验结果表明，改造后的框架在消能能力、初始刚度和最大承载能力方面均优于原建框架。对实验结果和有限元分析结果进行了详细分析和比较。值得注意的是，在消能能力、初始刚度和最大强度方面，实验结果与分析结果之间的差距低于或接近 5%。此外，混凝土截面的预期破坏模式和钢筋的应力分布也与实验中观察到的情况十分吻合。
{"title":"Structural Performance Testing and Finite Element Analysis of the ENTA Wall Frame System","authors":"Hyoseo An, Taesang Ahn, Sumin Kang, Jiuk Shin, Kihak Lee","doi":"10.9798/kosham.2023.23.6.1","DOIUrl":"https://doi.org/10.9798/kosham.2023.23.6.1","url":null,"abstract":"This study rigorously assessed the structural performance of the wall frame system through a combination of experimentation and simulation under cyclic loading. Hence, three distinct specimens were developed: the original frame (referred to as the “as-built frame”), the retrofitted frame with ENTA damper system (referred to as “ENTA-W”), and the retrofitted frame with both ENTA damper system and steel frame (referred to as “ENTA-WR’). The experimental findings revealed that the retrofitted frames outperformed the as-built frame regarding energy dissipation ability, initial stiffness, and maximum load capacity. A detailed analysis and comparison between experimental and finite element analysis results were conducted. Notably, disparities between the experimental and analytical outcomes were lower than or near five percent regarding energy dissipation capacity, initial stiffness, and maximum strength. Moreover, the anticipated failure pattern of the concrete section and the stress distribution of the reinforcing bar closely mirrored those observed in the experiment.","PeriodicalId":416980,"journal":{"name":"Journal of the Korean Society of Hazard Mitigation","volume":" 1118","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139136456","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 : 2023-12-31DOI: 10.9798/kosham.2023.23.6.269
Sung Jong Lee, Joo Ha Lee
In this study, safety diagnosis results from underground and nuclear power plant structures were collected to evaluate the reliability of on-site structural safety assessments. The analysis of these results revealed a discrepancy between the compressive strength determined by rebound hardness and the core compressive strength, with the former typically being evaluated higher than the latter. Additionally, existing strength prediction models did not adequately explain field data, whereas artificial intelligence models, particularly the support vector machine model, demonstrated improved accuracy and reduced error rates. This indicated the superior performance of support vector machine models in this context.
{"title":"A Study on the Statistical Analysis and Artificial Intelligence Model to Improve the Reliability of Safety Inspection","authors":"Sung Jong Lee, Joo Ha Lee","doi":"10.9798/kosham.2023.23.6.269","DOIUrl":"https://doi.org/10.9798/kosham.2023.23.6.269","url":null,"abstract":"In this study, safety diagnosis results from underground and nuclear power plant structures were collected to evaluate the reliability of on-site structural safety assessments. The analysis of these results revealed a discrepancy between the compressive strength determined by rebound hardness and the core compressive strength, with the former typically being evaluated higher than the latter. Additionally, existing strength prediction models did not adequately explain field data, whereas artificial intelligence models, particularly the support vector machine model, demonstrated improved accuracy and reduced error rates. This indicated the superior performance of support vector machine models in this context.","PeriodicalId":416980,"journal":{"name":"Journal of the Korean Society of Hazard Mitigation","volume":"15 20","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139129960","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 : 2023-12-31DOI: 10.9798/kosham.2023.23.6.91
Mijin Choo, Dong Keun Yoon
This study investigates the impact of the 2012 typhoon on household consumption expenditures in South Korea using a difference-indifferences model. We analyzed the changes in household consumption expenditures based on the extent and severity of disaster damage. Additionally, how these impacts vary depending on the employment status of the household head and the household’s income quartile was explored. The findings indicate that households experiencing disaster damage tend to reduce their consumption expenditures compared to unaffected households. Notably, households in the lowest income quintile and those with heads engaged in temporary or self-employment experience more significant declines. These research findings provide valuable insights for shaping future policies aimed at supporting household recovery and effectively directing post-disaster assistance resources.
{"title":"Impact of Disaster on Household Expenditures Using a Difference-in-Difference Analysis","authors":"Mijin Choo, Dong Keun Yoon","doi":"10.9798/kosham.2023.23.6.91","DOIUrl":"https://doi.org/10.9798/kosham.2023.23.6.91","url":null,"abstract":"This study investigates the impact of the 2012 typhoon on household consumption expenditures in South Korea using a difference-indifferences model. We analyzed the changes in household consumption expenditures based on the extent and severity of disaster damage. Additionally, how these impacts vary depending on the employment status of the household head and the household’s income quartile was explored. The findings indicate that households experiencing disaster damage tend to reduce their consumption expenditures compared to unaffected households. Notably, households in the lowest income quintile and those with heads engaged in temporary or self-employment experience more significant declines. These research findings provide valuable insights for shaping future policies aimed at supporting household recovery and effectively directing post-disaster assistance resources.","PeriodicalId":416980,"journal":{"name":"Journal of the Korean Society of Hazard Mitigation","volume":"74 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139130314","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 : 2023-12-31DOI: 10.9798/kosham.2023.23.6.229
Byeong-Heun Lee, Dong-In Park, Chan-Sol Ahn
This study derived a range of results based on all variables corresponding to a prediction formula for wind and wind-free conditions proposed by fire dynamics tools (FDTs), to estimate the radiant heat flux generated by pool fires. A method using standard deviation was employed to enable a design based on a designer's judgment. A value reflecting a standard deviation of 0.85 times the average value of the regression equation was proposed as a design prediction equation. This proposal was validated through calculations comparing the results with that of a large-scale pool fire experiment presented in the existing literature, to examine the applicability of the equation.
{"title":"Design Prediction Equation for Plant Facilities: A Study Using the Pool Fire Radiant Heat Flux Estimation Method","authors":"Byeong-Heun Lee, Dong-In Park, Chan-Sol Ahn","doi":"10.9798/kosham.2023.23.6.229","DOIUrl":"https://doi.org/10.9798/kosham.2023.23.6.229","url":null,"abstract":"This study derived a range of results based on all variables corresponding to a prediction formula for wind and wind-free conditions proposed by fire dynamics tools (FDTs), to estimate the radiant heat flux generated by pool fires. A method using standard deviation was employed to enable a design based on a designer's judgment. A value reflecting a standard deviation of 0.85 times the average value of the regression equation was proposed as a design prediction equation. This proposal was validated through calculations comparing the results with that of a large-scale pool fire experiment presented in the existing literature, to examine the applicability of the equation.","PeriodicalId":416980,"journal":{"name":"Journal of the Korean Society of Hazard Mitigation","volume":"98 28","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139131832","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 : 2023-12-31DOI: 10.9798/kosham.2023.23.6.249
Gihoon Moon, Seung Yeon Lee, Jin Kyung Yu, Doosun Kang, Do Guen Yoo
Zoning methodologies, such as district metered areas (DMA), are commonly employed to robustly maintain water pipe network systems in both normal and abnormal situations. However, the management and evaluation typically associated with existing DMAs primarily focus on ensuring stable water volume and pressure. Consequently, these methods do not adequately address the maintenance of water quality elements within the water supply system, such as adequately managing residual chlorine and reducing water quality complaints. This study introduced a zoning tailored explicitly for managing water quality-oriented elements, facilitating stable water quality management, and enhancing responses to water quality incidents in large-scale domestic water supply networks. A method was proposed to establish priorities for each zone, using various geographic information system (GIS)-based water quality-related structured data (such as water quality measurement data and pipe data) and unstructured data (such as water quality complaints). Comprehensive water quality management was achieved by applying machine learning techniques based on clustering analysis to derive evaluation factors. The proposed methodology was implemented in Metropolitan City A in Korea, leading to the derivation and analysis of evaluation results. This data-centric water supply network priority management area designation methodology, as presented in this study, is anticipated to serve as a valuable decision-making tool for enhancing the accuracy and reliability of water supply network operation and the overall management of water supply operators.
在正常和异常情况下，通常都会采用分区方法（如分区计量区域 (DMA)）来有力地维护供水管网系统。然而，与现有 DMA 相关的管理和评估通常主要侧重于确保稳定的水量和水压。因此，这些方法并不能充分解决供水系统中的水质维护问题，如充分管理余氯和减少水质投诉。本研究引入了一种分区方法，专门用于管理以水质为导向的要素，促进稳定的水质管理，并加强对大型家用供水管网中水质事件的响应。利用各种基于地理信息系统（GIS）的与水质相关的结构化数据（如水质测量数据和管道数据）和非结构化数据（如水质投诉），提出了确定各分区优先级的方法。通过应用基于聚类分析的机器学习技术得出评价因子，实现了全面的水质管理。所提出的方法已在韩国 A 市实施，并得出了评价结果和分析结果。本研究提出的这种以数据为中心的供水管网优先管理区域指定方法有望成为一种有价值的决策工具，用于提高供水管网运行的准确性和可靠性以及供水运营商的整体管理水平。
{"title":"Cluster Analysis to Identify Priority Areas for Water Quality Management in Water Supply Systems","authors":"Gihoon Moon, Seung Yeon Lee, Jin Kyung Yu, Doosun Kang, Do Guen Yoo","doi":"10.9798/kosham.2023.23.6.249","DOIUrl":"https://doi.org/10.9798/kosham.2023.23.6.249","url":null,"abstract":"Zoning methodologies, such as district metered areas (DMA), are commonly employed to robustly maintain water pipe network systems in both normal and abnormal situations. However, the management and evaluation typically associated with existing DMAs primarily focus on ensuring stable water volume and pressure. Consequently, these methods do not adequately address the maintenance of water quality elements within the water supply system, such as adequately managing residual chlorine and reducing water quality complaints. This study introduced a zoning tailored explicitly for managing water quality-oriented elements, facilitating stable water quality management, and enhancing responses to water quality incidents in large-scale domestic water supply networks. A method was proposed to establish priorities for each zone, using various geographic information system (GIS)-based water quality-related structured data (such as water quality measurement data and pipe data) and unstructured data (such as water quality complaints). Comprehensive water quality management was achieved by applying machine learning techniques based on clustering analysis to derive evaluation factors. The proposed methodology was implemented in Metropolitan City A in Korea, leading to the derivation and analysis of evaluation results. This data-centric water supply network priority management area designation methodology, as presented in this study, is anticipated to serve as a valuable decision-making tool for enhancing the accuracy and reliability of water supply network operation and the overall management of water supply operators.","PeriodicalId":416980,"journal":{"name":"Journal of the Korean Society of Hazard Mitigation","volume":"82 25","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139132080","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 : 2023-12-31DOI: 10.9798/kosham.2023.23.6.123
Namgyun Kim, Byonghee Jun
This study used an unmanned aerial vehicle (UAV) for aerial photogrammetry at the Seonseri debris flow site in Gokseong-gun, triggered by heavy rainfall in August 2020. Survey data facilitated the generation of orthographic images and high-resolution digital surface mode (DSM). Finite difference method (FDM) numerical analysis simulated debris flow, exploring the impact of discharge rate and topographic data among input variables. Applying the rational formula for determining debris flow discharge rate emphasized the significance of maximum rainfall intensity just before the event, with high estimated values for runoff coefficient and soil concentration. The study highlighted significant variations in debris flow simulation results based on topographical data accuracy, emphasizing the crucial role of precise site-specific topographical data.
{"title":"Analyzing Debris Flow: Topographical Data and Discharge Rate Study","authors":"Namgyun Kim, Byonghee Jun","doi":"10.9798/kosham.2023.23.6.123","DOIUrl":"https://doi.org/10.9798/kosham.2023.23.6.123","url":null,"abstract":"This study used an unmanned aerial vehicle (UAV) for aerial photogrammetry at the Seonseri debris flow site in Gokseong-gun, triggered by heavy rainfall in August 2020. Survey data facilitated the generation of orthographic images and high-resolution digital surface mode (DSM). Finite difference method (FDM) numerical analysis simulated debris flow, exploring the impact of discharge rate and topographic data among input variables. Applying the rational formula for determining debris flow discharge rate emphasized the significance of maximum rainfall intensity just before the event, with high estimated values for runoff coefficient and soil concentration. The study highlighted significant variations in debris flow simulation results based on topographical data accuracy, emphasizing the crucial role of precise site-specific topographical data.","PeriodicalId":416980,"journal":{"name":"Journal of the Korean Society of Hazard Mitigation","volume":"3 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139135594","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 : 2023-12-31DOI: 10.9798/kosham.2023.23.6.243
Jin Kyung Yu, Seung Yeon Lee, Byeong Heon On, Tae Min Jeon, Do Guen Yoo
Water quality issues may arise within the water pipe network system due to external contamination from water leaks, aging pipes leading to damage, and the presence of suspended sediments resulting from changes in hydraulic direction. Promptly addressing these water quality problems during the supply process is crucial, as delays can swiftly escalate health risks for residents and cause economic damage to the region. Therefore, developing control techniques is imperative to minimize the rapid dissemination of accidents. This study aims to proactively identify and calculate the spread pattern of water quality incidents within the pipe network, utilizing residence time as a critical factor. A practical and efficient spread control zoning methodology was proposed to curtail the expansion of accidents. Applying the proposed methodology to the pipe network system in Cty A (Korea) involved quantitative analysis of newly defined areas based on the target residence time intended for practical management and control during water quality accidents. The results of the analysis demonstrate that the proposed method offers the potential to establish a novel concept of a response area for rapid reactions to water quality incidents. This facilitates the design of a zone centered around valves essential for crisis response, thereby creating an area with precise control over the spread of water quality accidents within a target response time.
由于漏水造成的外部污染、管道老化导致的损坏以及水力流向变化造成的悬浮沉积物的存在，供水管网系统内可能会出现水质问题。在供水过程中及时处理这些水质问题至关重要，因为延误处理会迅速增加居民的健康风险，并对该地区造成经济损失。因此，必须开发控制技术，以最大限度地减少事故的迅速蔓延。本研究旨在利用停留时间这一关键因素，主动识别和计算水质事故在管网中的传播模式。研究提出了一种实用高效的扩散控制分区方法，以遏制事故的扩大。将所提出的方法应用于韩国 A 县的管网系统时，需要根据目标停留时间对新划定的区域进行定量分析，以便在发生水质事故时进行实际管理和控制。分析结果表明，所提出的方法有可能建立一个新的响应区域概念，以便对水质事故做出快速反应。这有助于设计一个以危机响应所必需的阀门为中心的区域，从而在目标响应时间内建立一个可精确控制水质事故扩散的区域。
{"title":"Developing a Methodology to Establish Response Zones based on Travel Time for Controlling the Spread of Water Quality Incidents in Water Supply Systems","authors":"Jin Kyung Yu, Seung Yeon Lee, Byeong Heon On, Tae Min Jeon, Do Guen Yoo","doi":"10.9798/kosham.2023.23.6.243","DOIUrl":"https://doi.org/10.9798/kosham.2023.23.6.243","url":null,"abstract":"Water quality issues may arise within the water pipe network system due to external contamination from water leaks, aging pipes leading to damage, and the presence of suspended sediments resulting from changes in hydraulic direction. Promptly addressing these water quality problems during the supply process is crucial, as delays can swiftly escalate health risks for residents and cause economic damage to the region. Therefore, developing control techniques is imperative to minimize the rapid dissemination of accidents. This study aims to proactively identify and calculate the spread pattern of water quality incidents within the pipe network, utilizing residence time as a critical factor. A practical and efficient spread control zoning methodology was proposed to curtail the expansion of accidents. Applying the proposed methodology to the pipe network system in Cty A (Korea) involved quantitative analysis of newly defined areas based on the target residence time intended for practical management and control during water quality accidents. The results of the analysis demonstrate that the proposed method offers the potential to establish a novel concept of a response area for rapid reactions to water quality incidents. This facilitates the design of a zone centered around valves essential for crisis response, thereby creating an area with precise control over the spread of water quality accidents within a target response time.","PeriodicalId":416980,"journal":{"name":"Journal of the Korean Society of Hazard Mitigation","volume":" 650","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139136680","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 : 2023-12-31DOI: 10.9798/kosham.2023.23.6.199
Young Min Shin, You-Ri Lim, Bong Jun Kim, D. Han
To compensate for the limitations of smoke detectors that frequently emit non-fire alarms, we investigated the carbon-monoxide detection characteristics of smoke detectors using UL 268 fire and non-fire test standards. Large amounts of carbon monoxide were generated during incomplete combustion at the beginning of a fire. Relatively low concentrations of carbon monoxide were also generated under non-fire conditions owing to steam, dust, etc. The response characteristics of general and analog smoke detectors from various manufacturers were analyzed to determine the possibility of linking smoke detectors installed in existing buildings. The experiments revealed that the smoke detectors showed similar reaction characteristics regardless of their manufacturer. However, those equipped with self-made carbon monoxide cross-sensing modules detected different carbon monoxide levels depending on the measurement location or method. Although using a carbon monoxide sensor is effective for distinguishing unwanted fire, additional experiments under various conditions are necessary to establish an appropriate detection range for carbon monoxide based on the response characteristics of the sensor.
为了弥补经常发出非火灾警报的烟雾探测器的局限性，我们使用 UL 268 火灾和非火灾测试标准对烟雾探测器的一氧化碳探测特性进行了研究。火灾初期的不完全燃烧会产生大量一氧化碳。在非火灾条件下，由于蒸汽、灰尘等原因，也会产生相对较低浓度的一氧化碳。对不同制造商生产的普通型和模拟型烟雾探测器的响应特性进行了分析，以确定将现有建筑物中安装的烟雾探测器连接起来的可能性。实验结果表明，无论烟雾探测器的制造商是谁，它们都表现出相似的反应特性。然而，配备了自制一氧化碳交叉感应模块的烟雾探测器却会因测量位置或方法的不同而检测到不同的一氧化碳含量。虽然使用一氧化碳传感器可以有效区分不必要的火灾，但还需要在各种条件下进行更多实验，以便根据传感器的反应特性确定适当的一氧化碳检测范围。
{"title":"Study on a Complementary Method to Address the Limitation of Smoke Detectors: Focusing on Carbon Monoxide Sensors","authors":"Young Min Shin, You-Ri Lim, Bong Jun Kim, D. Han","doi":"10.9798/kosham.2023.23.6.199","DOIUrl":"https://doi.org/10.9798/kosham.2023.23.6.199","url":null,"abstract":"To compensate for the limitations of smoke detectors that frequently emit non-fire alarms, we investigated the carbon-monoxide detection characteristics of smoke detectors using UL 268 fire and non-fire test standards. Large amounts of carbon monoxide were generated during incomplete combustion at the beginning of a fire. Relatively low concentrations of carbon monoxide were also generated under non-fire conditions owing to steam, dust, etc. The response characteristics of general and analog smoke detectors from various manufacturers were analyzed to determine the possibility of linking smoke detectors installed in existing buildings. The experiments revealed that the smoke detectors showed similar reaction characteristics regardless of their manufacturer. However, those equipped with self-made carbon monoxide cross-sensing modules detected different carbon monoxide levels depending on the measurement location or method. Although using a carbon monoxide sensor is effective for distinguishing unwanted fire, additional experiments under various conditions are necessary to establish an appropriate detection range for carbon monoxide based on the response characteristics of the sensor.","PeriodicalId":416980,"journal":{"name":"Journal of the Korean Society of Hazard Mitigation","volume":" 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139136263","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 : 2023-12-31DOI: 10.9798/kosham.2023.23.6.111
Sangmin Lee, Yeoju Jang
Recently, the escalating occurrence of disasters with abnormal characteristics poses challenges to disaster management. As a result, effective disaster management and response strategies have become crucial. In this study, the disaster management system using satellite imagery was developed and constructed as a dashboard. For this study, the National Disaster Management Information System (NDMS) of the Ministry of the Interior and Safety (MOIS) was analyzed. Crisis management activities were examined in accordance with the disaster phase of the crisis management standard manual. Relevant components from the integrated multisource data in NDMS were selected to enhance technology effectiveness. A disaster management officer's requirements were analyzed to improve user usability. Disaster response procedures using satellite imagery were derived by synthesizing this information. Based on these procedures, key elements and system procedures were established for system design and visualization, and the system display was presented. The technology was proactively developed for immediate implementation after establishing legal and institutional procedures. Utilizing satellite imagery in the disaster management system is expected to enhance prompt and efficient disaster management.
{"title":"A Study on Establishing Procedures and Display Design for the Development of the Disaster Management System using Satellite Imagery","authors":"Sangmin Lee, Yeoju Jang","doi":"10.9798/kosham.2023.23.6.111","DOIUrl":"https://doi.org/10.9798/kosham.2023.23.6.111","url":null,"abstract":"Recently, the escalating occurrence of disasters with abnormal characteristics poses challenges to disaster management. As a result, effective disaster management and response strategies have become crucial. In this study, the disaster management system using satellite imagery was developed and constructed as a dashboard. For this study, the National Disaster Management Information System (NDMS) of the Ministry of the Interior and Safety (MOIS) was analyzed. Crisis management activities were examined in accordance with the disaster phase of the crisis management standard manual. Relevant components from the integrated multisource data in NDMS were selected to enhance technology effectiveness. A disaster management officer's requirements were analyzed to improve user usability. Disaster response procedures using satellite imagery were derived by synthesizing this information. Based on these procedures, key elements and system procedures were established for system design and visualization, and the system display was presented. The technology was proactively developed for immediate implementation after establishing legal and institutional procedures. Utilizing satellite imagery in the disaster management system is expected to enhance prompt and efficient disaster management.","PeriodicalId":416980,"journal":{"name":"Journal of the Korean Society of Hazard Mitigation","volume":"52 14","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139130812","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 : 2023-12-31DOI: 10.9798/kosham.2023.23.6.101
Jungsoo Yoon, Seok-Hwan Hwang, Narae Kang
The primary aim of a rain radar is to observe ground-level rainfall accurately. Effective quality control of rain radar data is necessary to ensure accuracy. In the field of hydrology, various methods have been employed to improve the quality of radar rainfall by correcting or synthesizing it with gauge rainfall. However, it is more important to enhance the quality of radar polarimetric variables in order to improve the quality of radar rainfall. Rain radar systems generate various polarimetric variables through complex radar hardware systems and signal processing algorithms. Measurement errors may arise from equipment abnormalities, inappropriate operating settings, and obstructions in observation during signal processing algorithms and production process of polarimetric variables. Because rain radar is an observation device operating in real time, it entails more frequent and continuous quality control compared to flowmeters that intermittently measure streamflow. This study introduces a series of real-time quality control methods tailored for rain radar, including inspection of radar rainfall accuracy, quality analysis of polarimetric variables (ρHV, ZDR, ΦDP), error estimation of polarimetric variables, and long-term variability of errors.
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