• Title/Summary/Keyword: Typhoon Disasters

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An Experimental Study on the Application of Shelter Structure Using Deployable Scissors Systems (전개가능형 가위구조시스템을 이용한 쉘터구조물에의 적용성 검토에 관한 실험적 연구)

  • Lim, Ji-Sub;Choi, Sang-Soon;Jeong, Eul-Seok;Kim, Seung-Deog
    • Journal of Korean Association for Spatial Structures
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    • v.14 no.3
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    • pp.101-108
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    • 2014
  • Recently, natural disasters such as earthquake, tsunami, typhoon and tornado are increasing, and cause huge economical loses and victim. Thus, when the disaster occurs, it is important to prepare emergency evacuation shelters for fast and easy construction compared to general building system. And, deployable structures will provide a great help for such aim. Deployable structures have the great advantage of being faster and easier to erect and dismantle compared to conventional building forms. In this study, we confirm the possibility of deployment for shelter structures using scissor structure system. First, Basic model was performed to recognize the appllicability of the deployable systems of the dome-shaped structure. Second, Advanced model that more improved inner space and deployment mechanism was confirmed.

A Study on Impact of Flood Disaster and Quality of Life among the Flood Victims (수재민의 수해로 인한 영향과 삶의 질에 관한 연구)

  • Lee, Seon-Hye
    • Research in Community and Public Health Nursing
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    • v.15 no.1
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    • pp.145-154
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    • 2004
  • Purpose: This study was performed to identify the extent of flood damage, the quality of life(QOL) and their relationships to flood victims. Method: The subjects of this study were 248(men 100, women 148) who live around seven areas in K province impacted by Typhoon Rusa. Data was collected between February 25 and March 21, 2003 by structured questionnaires. The instruments were composed of two parts. The extent of flood damage were the impacts of daily living by revised from Ginexi et aI.(2000). QOL was used to WHOQOL BREF Korean Version by Min et al.(2002). The SPSS program was used for its descriptive, reliability, and correlation analysis. Result: The means of the extent of flood damage were: daily living 1.88, economy 4.60, and health 3.75. The mean of total QOL was 2.95: social domain 3.29, overall satisfaction 3.09, physical domain 3.06, psychological domain 2.95, and environmental domain 2.68. The negative correlations were between the Impact of daily living and Total QOL(r=-.143, p<.05), Physical QOL(r=-.220, p<.01) and Overall satisfaction (r=-141, p<.05). Conclusion: This study has learned that the impact of the flood had negative effects on the flood victims quality of life, and the difficulties they faced in their daily lives. Further research will be needed to explore influencing factors on QOL in disaster victims.

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Economic Analysis of Typhoon Surge Floodplain Using GIS and MD-FDA (MD-FDA와 GIS를 이용한 태풍해일 침수지역의 경제성 분석)

  • Choi, Hyun;Yoon, Hong-Joo;Ahn, Chan-Whan
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2007.10a
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    • pp.995-998
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    • 2007
  • It is essential to establish some systematic counterplans to diminish such damages of large-scale tidal invasion on coastal lowlands considering the recent weather conditions of growing scale of typhoons. Therefore, the purpose of this research is to make the counterplans for prevention against disasters fulfilled effectively based on the data conducted by comparing and analyzing the accuracy between observation values and the results of estimating the greatest overflow area according to abnormal tidal levels centered on Masan area where there was the severest damage from tidal wave at that time.

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Benefits of the Next Generation Geostationary Meteorological Satellite Observation and Policy Plans for Expanding Satellite Data Application: Lessons from GOES-16 (차세대 정지궤도 기상위성관측의 편익과 활용 확대 방안: GOES-16에서 얻은 교훈)

  • Kim, Jiyoung;Jang, Kun-Il
    • Atmosphere
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    • v.28 no.2
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    • pp.201-209
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    • 2018
  • Benefits of the next generation geostationary meteorological satellite observation (e.g., GEO-KOMPSAT-2A) are qualitatively and comprehensively described and discussed. Main beneficial phenomena for application can be listed as tropical cyclones (typhoon), high impact weather (heavy rainfall, lightning, and hail), ocean, air pollution (particulate matter), forest fire, fog, aircraft icing, volcanic eruption, and space weather. The next generation satellites with highly enhanced spatial and temporal resolution images, expanding channels, and basic and additional products are expected to create the new valuable benefits, including the contribution to the reduction of socioeconomic losses due to weather-related disasters. In particular, the new satellite observations are readily applicable to early warning and very-short time forecast application of hazardous weather phenomena, global climate change monitoring and adaptation, improvement of numerical weather forecast skill, and technical improvement of space weather monitoring and forecast. Several policy plans for expanding the application of the next generation satellite data are suggested.

A Analytical Study on Influence of Gradients on Section Characteristics of River Banks (하천 제방 단면 특성이 동수경사에 미치는 영향에 관한 해석적 연구)

  • Byun, Yoseph;Kim, Jongil;Baek, Seungin;Chun, Byungsik
    • Journal of the Korean GEO-environmental Society
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    • v.13 no.3
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    • pp.13-19
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    • 2012
  • Due to recent climate change, big typhoon and heavy rainfall happen frequently not only in Korea but also all over the world. It leads to collapse of levee by extraordinary flood. It lead to collapse of levees by extraordinary flood. These natural disasters give the life and property damages in near region. In this study, it was performed that a stability in levee using seepage analysis. It has been evaluated hydraulic gradient of exit zone according to variations in levee crest width, gradient. As a result, it showed that hydraulic gradient of exit zone was decreased due to increase of levee crest width and gradient, and it was evaluated that vertical hydraulic gradient was decreased than that of the horizontal hydraulic gradient.

Spatial Distribution and Causative Factors of Typhoon Disasters in Korea (한국의 태풍재해의 공간분포와 발생요인)

  • 이은걸
    • Journal of the Korean Geographical Society
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    • v.33 no.2
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    • pp.179-190
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    • 1998
  • 한반도에 내습하는 태풍의 발생빈도와 강도는 큰 편은 아니나 우리는 거의 해마다 태풍으로 인한 재해를 경험하고 있다. 특히 태풍에 의한 경제적 손실은 1960년대 이후 경제개발과 도시화로 인한 인구과밀지역에서 크게 나타나고 있다. 본 논문에서는 태풍재해의 대책을 수립하는데 필요한 기초자료를 마련하기 위한 방향을 제시하고자, 태풍재해를 유발하는 기상적 요인과 더불어 경제.사회적 조건이 재해의 규모 및 강도에 미치는 기여도가 상당히 크다는 것을 밝히고자 하였다. 한반도에 큰 피해를 남기는 태풍의 진로는 서해를 따라 북진하다가 반도부를 거쳐 동쪽으로 빠져나가는 E경로로서 한반도의 동쪽을 통과하는 진로를 취할 때 보다 더 큰 영향을 끼친다. 재해지역의 공간분포는 대체로 남해안 지역에 집중되어 있다. 태풍재해는 일반적으로 태풍중심에서부터 피해지역가지의 최단거리, 강수량, 최대풍속 등의 기상적 요긴과 피해지역의 토지이용 및 그 지역의 산업구조를 포함하는 사회.경제적 요인 그리고 재해대책수준 및 태풍예보기술 등 다양한 원인에 의해 태풍의 피해의 정도가 결정됨을 태풍재해의 공간분포와 발생요인의 분석결과 알 수 있었다. 침수로 인한 피해는 경남과 전남의 농촌지역에서 넓게 나타나고, 경제적 손실은 대규모의 도시와 공업이 발달된 경남해안지역에 집중되고 있다. 태풍재해의 규모를 저감시키기 위해서는 보다 정확하고 신속한 기상예보기술의 향상을 도모해야 함은 물론 홍수예방시설의 확충과 더불어 GIS 기법을 활용한 방재정보시스템에 기초하는 도시종합방재대책을 수립하도록 해야 할 것이다.

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Effects of Different Restoration Practices on Nutrient Loss from Sediments after a Forest Fire in Two Watersheds

  • Hwang, Tae-Hwan;Lee, Kyu-Song;Park, Sang-Deog;Choung, Yeon-Sook
    • Journal of Ecology and Environment
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    • v.30 no.3
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    • pp.265-269
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    • 2007
  • The loss of nitrogen and phosphorus from sediments in two watersheds, one naturally regenerating and one artificially planted, in Sacheon-myun, Gangneung-si, Gangwon Province, were measured two years after a forest fire in 2000. Sediment losses occurred five times in the course of the year. In the artificially planted watershed, $50{\sim}140$ times more nitrogen and $54{\sim}139$ times more phosphorus were lost with sediments during heavy rains, from July to August, than in the naturally regenerating watershed. When the typhoon Rusa struck the country, 1,389 times more nitrogen and 1,647 times more phosphorus were lost from the artificial watershed. In spite of the limited scope of this study, these results suggest that artificially planted watersheds are extremely vulnerable to catastrophic natural disasters such as typhoons. Elevated loss of nutrients in the artificially planted watershed might have resulted from the mechanized silvicultural practices employed immediately after the fire. To maximize soil preservation, the timing and necessity of plantation practices should be reconsidered, and rapidly regenerating vegetation should be protected to promote nutrient uptake and to mitigate nutrient loss from burned forests.

Shortest Distance Algorithm Based Path Detection System in Case of Flash Flood (돌발홍수 발생 시 최단 거리 알고리즘 기반 경로 검출시스템)

  • Jeon, Sungwoo;Shi, ZhaoQi;Yang, Seung Eui;Jung, Heokyung
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2021.10a
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    • pp.338-340
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    • 2021
  • Among the recent natural disasters, flood damage is concentrated in the summer, leading to casualties or property damage due to the typhoon's rainy season. Much research is being done to reduce this damage. In this paper, we design and implement a system that detects paths and provides them to users using shortest-distance algorithms in the event of such sudden flooding. The proposed system uses QGIS to detect paths using topographical data that generated tracks and pointers. In addition, other shortest paths are detected and provided to users when sudden flooding occurs during evacuation to routes detected through scenarios. Therefore, it is assumed that the proposed system will allow users to safely evacuate from the risk of future disaster safety accidents.

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Development of the 3D simulation for disaster prevention in the downtown soil erosion (I) (도심지 토사재해 예방을 위한 3차원 시뮬레이션 개발(I))

  • Shin, Bong Jin;Youn, Sang Ho;Lee, Gi Dong
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.17 no.6
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    • pp.408-417
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    • 2016
  • The frequent regional torrential or heavy rain and typhoon mostly caused by climate change has resulted in sediment disasters particularly in mountainous or hilly areas. More than 65% of South Korea is mountainous and development and rapid urbanization has brought lots of steep sloping industrial complexes, which are adjacent to cities. Such continuous urbanization and industrialization can result in an increase in serious damage to those places. Korea has very high population density so sediment disaster could result in a tremendous loss of property and life. A recent 10-year (2001~2010) study of the average annual loss shows 68 casualties and property loss of 1.7044 trillion Won(?), which indicates a 20% and 25% decrease for both life and property, respectively, but urban areas are experiencing increasing damage. In this paper, a comprehensive simulator composed by references, analyses, and the recent technologies was applied to visualize the scale of the damaged Woomyeon-san (Mt.) and verify the performance of the simulator.

Prediction of a Debris Flow Flooding Caused by Probable Maximum Precipitation (가능 최대강수량에 의한 토석류 범람 예측)

  • Kim, Yeon-Joong;Yoon, Jung-Sung;Kohji, Tanaka;Hur, Dong-Soo
    • Journal of Korea Water Resources Association
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    • v.48 no.2
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    • pp.115-126
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    • 2015
  • In recent years, debris flow disaster has occurred in multiple locations between high and low mountainous areas simultaneously with a flooding disaster in urban areas caused by heavy and torrential rainfall due to the changing global climate and environment. As a result, these disasters frequently lead to large-scale destruction of infrastructures or individual properties and cause psychological harm or human death. In order to mitigate these disasters more effectively, it is necessary to investigate what causes the damage with an integrated model of both disasters at once. The objectives of this study are to analyze the mechanism of debris flow for real basin, to determine the PMP and run-off discharge due to the DAD analysis, and to estimate the influence range of debris flow for fan area according to the scenario. To analyse the characteristics of debris flow at the real basin, the parameters such as the deposition pattern, deposit thickness, approaching velocity, occurrence of sediment volume and travel length are estimated from DAD analysis. As a results, the peak time precipitation is estimated by 135 mm/hr as torrential rainfall and maximum total amount of rainfall is estimated by 544 mm as typhoon related rainfall.