• Title/Summary/Keyword: Flood damage analysis

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A Research Study on Monitoring for Establishing Disaster Safety Villages in Rural Areas -Based on Disaster Prevention Experience Village in Garisan-ri, Inje-gun- (농촌지역 재난안전마을 구축을 위한 모니터링 조사 연구 -인제군 가리산리 방재체험마을 중심으로-)

  • Koo, Wonhoi;Baek, Minho
    • Journal of the Society of Disaster Information
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    • v.13 no.3
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    • pp.398-404
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    • 2017
  • In this study, the field investigation was carried out in an area damaged by flood, which recently occurred in Chungcheong region, in order to establish a disaster safety village in a rural area. In addition, the history and characteristics of a village in Garisan-ri, Inje-gun, Gangwon-do that experienced loss of life and property caused by flood in 2006 were analyzed through monitoring. The village was restored and has been operated as a disaster prevention experience village for the purpose of disaster prevention, and its structural and non-structural status was monitored during the analysis. Based on the results, application measures for establishing a disaster safety village in a rural area in future were examined. At the time of restoring food damage, the residents' participation was actively reflected in the process of establishing the disaster prevention experience village in Garisan-ri. The village has been currently operated until now as an example of disaster safety village in rural regions, and various activities including training and educational programs are carried out in order to reinforce the disaster prevention capability of residents. The findings of this study can be used for establishing a disaster safety village in a rural area based on such characteristics.

Monitoring and Trends Analysis of Food Poisoning Outbreaks Occurred in Recent Years in Korea (최근 한국에서 발생한 식중독 모니터링 및 추이 분석)

  • 박희옥;김창민;우건조;박선희;이동하
    • Journal of Food Hygiene and Safety
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    • v.16 no.4
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    • pp.280-294
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    • 2001
  • Despite to the reality that the outbreaks from flood poisoning in Korea have been continuously increasing in the last two decades, it was very much neglected even in the public health field in Korea. Food poisoning outbreaks resulted in many cases not only in the damage of health but also in the death of many lives. However, this problem can be effectively solved by effects through health education activities, but not solely by the legal measures. This study was carried out to provide information that can be used in planning health education programs and proposing new rules to prevent any possible outbreaks from flood poisoning. The main problems contributing to flood poisoning outbreaks in an institutional setting or school catering and at home were reviewed and analyzed through the epidemiological investigations and articles related to flood poisoning in the last a decade (1991 ∼ 2000). Accordingly, the data presented in this study are sufficient to show and prove the significant trends in food poisoning accidents in Korea. The major findings investigated in this study are as follows. The frequency of food poisoning accidents as well as the number of victims have continuously increased in Korea. The number of victims per food poisoning accident is also increased from 20 persons in 1990 to 69.8 persons in 2000. Therefore, we should realize that the group poisoning outbreaks occur more frequently and the size of group poisoning accidents is getting larger. Among four seasons, the food poisoning accidents occurred more frequently in the summer (May ∼September) until 1997, However, after 1997, the food poisoning accidents occurred evenly in three seasons except the winter. The most important bacteria that cause food poisoning in Korea were Salmonella spp., Vibrio spp. and Staphylococcus aureus. They occupied 85∼90% of the rates of accidents and the number of victims.

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Performance tests and uncertainty analysis of tipping bucket rain gauge (전도형 강수량계의 성능시험 및 불확도 분석)

  • Hong, Sung-taek;Park, Byung-don;Shin, Gang-wook;Jung, Hoe-kyung
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2018.05a
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    • pp.595-597
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    • 2018
  • Precipitation has a wide range of applications, such as the management and operation of dams and rivers, supply of dranking water for urban and industrial complex, farming and fishing, forest greening, and safety management. In order to prepare for disasters and to obtain economical effects in case of flood damage, it is necessary to measure accurate precipitation. In this study, we carried out the characteristics tests for various types of rainfall gauge using integrated verification system, which can analyze the performance of collective type rainfall gauge. The uncertainty for tipping bucket rain gauge was 0.2887 mm. Therefore, it can be seen that the uncertainty is calculated differently depending on the characteristics of the rainfall gauges. The uncertainty is also influenced greatly by the resolution.

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Inundation Accident Analysis Using Hydrodynamic Model and Consideration of Disaster Roots Using Cause and Effect Diagram (동수역학 모형을 이용한 침수사고 분석 및 특성요인도를 활용한 재해 원인 고찰)

  • Yoo, Dong-Hyun;Song, Chang Geun
    • Journal of Convergence for Information Technology
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    • v.10 no.10
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    • pp.128-134
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    • 2020
  • Recently, the damages by typhoons and heavy rains are increasing due to the climate change. However, we are still vulnerable to inundation disaster due to various causes such as poor physical flood control and lacks of disaster and safety management. Therefore, it is necessary to establish systems to ensure safety and prepare practical countermeasures that can minimize damage when an inundation occurs, thereby minimizing economic loss and casualty. In this study, hydrodynamic inundation modelings were implemented to analyze the "Noryangjin reservoir inundation accident" and "Choryang No. 1 underground road inundation accident." and spatial risk was assessed by a quantitative hazard index. In addition, cause and effect diagrams were provided to present the risk causes in terms of physical and managemental aspects.

Assessment of Typhoon Trajectories and Synoptic Pattern Based on Probabilistic Cluster Analysis for the Typhoons Affecting the Korean Peninsula (확률론적 클러스터링 기법을 이용한 한반도 태풍경로 및 종관기후학적 분석)

  • Kim, Tae-Jeong;Kwon, Hyun-Han;Kim, Ki-Young
    • Journal of Korea Water Resources Association
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    • v.47 no.4
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    • pp.385-396
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    • 2014
  • Lately, more frequent typhoons cause extensive flood and wind damage throughout the summer season. In this respect, this study aims to develop a probabilistic clustering model that uses both typhoon genesis location and trajectories. The proposed model was applied to the 197 typhoon events that made landfall in the Korean peninsula from 1951 to 2012. We evaluate the performance of the proposed clustering model through a simulation study based on synthetic typhoon trajectories. The seven distinguished clusters for typhoons affecting Korean peninsula were identified. It was found that most of typhoon genesis originated from a remote position ($10^{\circ}{\sim}20^{\circ}N$, $120^{\circ}{\sim}150^{\circ}E$) near the Equator. Cluster, type B can be regarded as a major track due to the fact that its frequency is approximately about 25.4% out of 197 events and its direct association with strong positive rainfall anomalies.

A Study on Methods to Increase the Efficiency of Natural Disaster Early Warning Systems (자연재해 예·경보시스템의 효율성 제고방안에 관한 연구)

  • Seo, Jung Pyo;Cho, Won Cheol
    • Journal of Korean Society of Disaster and Security
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    • v.6 no.1
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    • pp.19-27
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    • 2013
  • Damage on assets and lives caused by natural disasters can be minimized by the provision of early warning information and preventive activities. In this sense, the importance of a disaster early warning system continues to increase. This study specifies the kinds of early warning systems depending on the type of natural disasters such as typhoon, flood and heavy snow. The mechanism for information transmission and status of early warning operations are analyzed. Through this analysis, the urgent need to establish a national integrated early warning transmission system is emphasized. In addition, this study offers methods to prevent unnecessary overlapping of investments by establishing an organic mechanism among individual early warning systems. Based on the standardization of disaster-related information, this study also provides methods to improve the efficiency of disaster early warning systems by organizing a permanent team for handling the systematic management and operation of the system.

A Study on Management of Rural Experience Programs through Case Linked with Natural Disaster - Focused on Garisan-ri, Inje-gun, Gangwon-do, Republic of Korea - (자연재난과의 연계사례를 통한 농촌체험 프로그램 운영방안에 관한 연구 - 강원도 인제군 가리산리를 중심으로 -)

  • Lim, Chang-Su;Park, Ro-Un;Lee, Seung-Chul;Kim, Eun-Ja;Choi, Jin-Ah
    • Journal of Korean Society of Rural Planning
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    • v.23 no.1
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    • pp.147-156
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    • 2017
  • This study suggests a plan to expand the rural experience program linked to natural disaster through the case analysis of the village of Garisan-ri, Inje-gun, Gangwon-do, Republic of Korea. This will help to establish the necessary improving and policies for Re-leap of rural villages in disaster areas and activation of rural experience villages. The local residents have created flood recovery stories, disaster response content, and disaster prevention camp sites, all of which have been hit by serious disaster damage. It has also contributed to the revitalization of the village by providing various experience programs such as disaster response training, crossing rapids, and evacuation experience. This is a way to get rid of the negative perception of disaster and utilize it. The conversion of idea through disaster experience content contributed to the activation of the area. By linking the disaster experience contents to the rural experience program in the future, it can be helpful to avoid the duplication of contents and limit the similar operation method, which is an existing problem of rural experience villages.

Analysis of Spatiotemporal Changes in Groundwater Recharge and Baseflow using SWAT and BFlow Models (SWAT 모형과 BFlow를 이용한 지하수 함양, 기저유출의 시공간적 변화 분석)

  • Lee, Ji Min;Park, Youn Shik;Jung, Younghun;Cho, Jaepil;Yang, Jae Eui;Lee, Gwanjae;Kim, Ki-Sung;Lim, Kyoung Jae
    • Journal of Korean Society on Water Environment
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    • v.30 no.5
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    • pp.549-558
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    • 2014
  • Occurrence frequency of flood and drought tends to increase in last a few decades, leading to social and economic damage since the abnormality of climate changes is one of the causes for hydrologic facilities by exceedance its designed tolerance. Soil and Water Assessment Tool (SWAT) model was used in the study to estimate temporal variance of groundwater recharge and baseflow. It was limited to consider recession curve coefficients in SWAT model calibration process, thus the recession curve coefficient was estimated by the Baseflow Filter Program (BFLOW) before SWAT model calibration. Precipitation data were estimated for 2014 to 2100 using three models which are GFDL-ESM2G, IPSL-CM5A-LR, and MIROC-ESM with Representative Concentration Pathways (RCP) scenario. SWAT model was calibrated for the Soyang watershed with NSE of 0.83, and $R^2$ of 0.89. The percentage to precipitation of groundwater recharge and baseflow were 27.6% and 17.1% respectively in 2009. Streamflow, groundwater recharge, and baseflow were estimated to be increased with the estimated precipitation data. GFDL-ESM2g model provided the most large precipitation data in the 2025s, and IPSL-CM5A-LR provided the most large precipitation data in the 2055s and 2085s. Overall, groundwater recharge and baseflow displayed similar trend to the estimated precipitation data.

Performance tests and uncertainty analysis of precipitation types (강수량계 종류별 성능시험 및 불확도 분석)

  • Hong, Sungtaek;Park, Byungdon;Kim, Jonglib;Jung, Hoekyung
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.22 no.7
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    • pp.935-942
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    • 2018
  • Precipitation has a wide range of applications, such as the management and operation of dams and rivers, supply of dranking water for urban and industrial complex, farming and fishing, forest greening, and safety management. In order to prepare for disasters and to obtain economical effects in case of flood damage, it is necessary to measure accurate precipitation. In this study, we carried out the characteristics tests for various types of rainfall gauge using integrated verification system, which can analyze the performance of collective type rainfall gauge. The uncertainty for tipping bucket rain gauge was 0.0041 mm, where weight type and surface tension type was 0.0045 mm and 0.0039 mm respectively. Therefore, the uncertainty according to the type and characteristics of the precipitation system is not significantly different. The uncertainty is also influenced greatly by the resolution.

A Monitoring and Data Analysis for Close-to-Nature Pilot Creeks (자연형 소하천 모니터링 시범사업 결과 분석)

  • Yi, Sang-Kuk;Chung, Jae-Hak;Lee, Ho-Yul;Lee, Jong-Seol
    • 한국방재학회:학술대회논문집
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    • 2008.02a
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    • pp.751-754
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    • 2008
  • Recently according to increasing of damage in creeks, it has been needed to develop a close-to-nature creek improvement technique considering flood safety as well as the functions of ecosystem and scenery preservation. In this study, the monitoring on creeks in seven provinces was accomplished to develop the technique applicable to domestic creeks between 2002 and 2007. Although the riparian ecosystem was disturbed, after just finishing the improvement on pilot creeks, the result of monitoring showed that restoration rates of creeks were satisfactory by constructing close-to-nature creek revetments. However it is hard to analyze on restoration and permissible tractive force of each revetments constructed in most creeks, because of insufficient monitoring data. Therefore the feasible study on the close-to-nature creek revetments should be performed in the near future through continuous monitoring on creeks.

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