• Title/Summary/Keyword: vulnerability indicators

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Analysis of Typhoon Vulnerability According to Quantitative Loss Data of Typhoon Maemi (태풍 매미의 피해 데이터 기반 국내 태풍 취약성 분석에 관한 연구)

  • Ahn, Sung-Jin;Kim, Tae-Hui;Kim, Ji-Myong
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2019.05a
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    • pp.125-126
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    • 2019
  • This study aims to recognize damage indicators of typhoon and to develop damage function's indicators, using information derived from the actual loss of typhoon Maemi. As typhoons engender significant financial damage all over the world, governments and insurance companies, local or global, develop hurricane risk assessment models and use it in quantifying, avoiding, mitigating, or transferring the risks. For the reason, it is crucial to understand the importance of the risk assessment model for typhoons, and the importance of reflecting local vulnerabilities for more advanced evaluation. Although much previous research on the economic losses associated with natural disasters has identified the risk indicators that are indispensable, more comprehensive research addressing the relationship between vulnerability and economic loss are still called for. Hence this study utilizes and analyzes the actual loss record of the typhoon Maemi provided by insurance companies to fill such gaps. In this study, natural disaster indicators and basic building information indicators are used in order to generate the vulnerability functions; and the results and indicators suggest a practical approach to create the vulnerability functions for insurance companies and administrative tasks, while reflecting the financial loss and local vulnerability of the actual buildings.

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Estimating Real-time Inundation Vulnerability Index at Point-unit Farmland Scale using Fuzzy set (Fuzzy set을 이용한 실시간 지점단위 농경지 침수위험 지수 산정)

  • Eun, Sangkyu;Kim, Taegon;Lee, Jimin;Jang, Min-Won;Suh, Kyo
    • Journal of Korean Society of Rural Planning
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    • v.20 no.2
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    • pp.1-10
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    • 2014
  • Smartphones change the picture of data and information sharing and make it possible to share various real-time flooding data and information. The vulnerability indicators of farmland inundation is needed to calculate the risk of farmland flood based on changeable hydro-meteorological data over time with morphologic characteristics of flood-damaged areas. To find related variables show the vulnerability of farmland inundation using the binary-logit model and correlation analysis and to provide vulnerability indicators were estimated by fuzzy set method. The outputs of vulnerability indicators were compared with the results of Monte Carlo simulation (MCS) for verification. From the result vulnerability indicators are applicable to mobile_based information system of farmland inundation.

Development of Integrated Water Resources Evaluation Index (통합수자원평가지수의 개발)

  • Lee, Dong-Ryul;Choi, Si Jung;Moon, Jang Won
    • Journal of Korea Water Resources Association
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    • v.46 no.10
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    • pp.1017-1028
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    • 2013
  • The purpose of this research is to develop an Integrated Water Resources Evaluation Index (IWREI) which can used to assess the performance of water resources projects in a regional perspective focusing on three major sectors including water use, flood, and river environment in water resources policies. The IWREI is estimated by integrating the Water Use Vulnerability Index (WUVI), the Flood Vulnerability Index (FVI), and the River Environment Vulnerability Index (REVI) which represent the vulnerability in each sector. These indices consist of total 26 indicators selected from the pressure indicators representing the causes of damages in water use, flood, and river environment, the state indicators and the response indicators. The estimated index describes the vulnerability and effectiveness of policies with five levels: Low, Medium Low, Medium, Medium High, and High. The results of evaluating total 115 hydrological units in Korea using the WUVI, FVI, REVI, and IWREI indicate that the project effectiveness in water resources policies is clearly verified by the improved index results compared to the past (early 1990s). Regional vulnerability and evaluation indices developed in this research could be used to establish goals of water resources policy and to select priority regions for project implementation.

Prioritizing the Importance of the Factors Related to the Vulnerability of Agricultural Water Resources and Infra-structures to Climate Change (농어촌용수 및 농업생산기반시설에 대한 기후변화 취약성 관련인자 중요도 평가)

  • Choi, Youngwan;Jang, Min-Won;Bae, Seung-Jong;Jung, Kyung-Hun;Hwang, Syewoon
    • Journal of Korean Society of Rural Planning
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    • v.25 no.1
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    • pp.75-87
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    • 2019
  • As the impacts of climate change have been emerged all the way through society, the potential risks specifically on agricultural water and facilities are recently getting concerned. Evaluating vulnerability of agriculture to climate change on is a time-tested strategy. While a number of researches on the adaption and mitigation of climate change were performed in various aspects for sustainable agricultural production, the vulnerability of management system for agricultural water and infrastructure has not been investigated yet. This study is aimed to clarify the definition of vulnerability to climate change, find the major indicators able to presume the vulnerability, and finally determine the relative importance of the indicators based on the specialist questionnaire survey and its analyses. The lists of indicators for major parts of agricultural water management such as, water use, flood control, reservoir related issues, and pumping and drainage systems are initialized referring to the related precedent studies. The primary survey was conducted in the form of Delphi to complement the list and methods and the main survey was then conducted using AHP(Analytic Hierarchy Process) technique to quantitatively prioritize the indicators. The results derived in this study would be directly adopted in weighting importance of indicators to investigate the indicator-based vulnerability analysis to climate change in agricultural water and infrastructure management.

A Study on Development of Flood Vulnerability Evaluation Indicators for Sewage Treatment Plant (환경시설물 대상 홍수취약성 평가지표 개발에 관한 연구 - 하수처리장을 중심으로 -)

  • Roh, Jae-Deok;Han, Ji-Hee;Lee, Chang-Hee
    • Journal of Convergence for Information Technology
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    • v.10 no.12
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    • pp.110-118
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    • 2020
  • This study developed a evaluation indicators on environmental facilities highly vulnerable to flood damage from quantitative and qualitative perspectives in order to reinforce the ability or preemptive disaster prevention. At first, this study classified the facilities into structural factor and non-structural factor. The structural factor consists of 11 indicators, the non-structural factor consists of 8 internal indicators and 6 external indicators. This study is expected to be prepared for flood damage by evaluating flood vulnerability of environmental facilities.

Vulnerability Assessment for Public Health to Climate change Using Spatio-temporal Information Based on GIS (GIS기반 시공간정보를 이용한 건강부문의 기후변화 취약성 평가)

  • Yoo, Seong-Jin;Lee, Woo-Kyun;Oh, Su-Hyun;Byun, Jung-Yeon
    • Spatial Information Research
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    • v.20 no.2
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    • pp.13-24
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    • 2012
  • To prevent the damage to human health by climate change, vulnerability assessment should be conducted for establishment of adaptation strategies. In this study, vulnerability assessment was conducted to provide information about vulnerable area for making adaptation policy. vulnerability assessment for human health was divided into three categories; extreme heat, ozone, and epidemic disease. To assess vulnerability, suitable indicators were selected by three criteria; sensitivity, adaptive capacity, and exposure, spatial data of indicators were prepared and processed using GIS technique. As a result, high vulnerability to extreme heat was shown in the low land regions of southern part. And vulnerability to harmful ozone was high in the surrounding area of Dae-gu basin and metropolitan area with a number of automobiles. Vulnerability of malaria and tsutsugamushi disease have a region-specific property. They were high in the vicinity of the Dimilitarized zone and south-western plain, respectively. In general, vulnerability of human health was increased in the future time. Vulnerable area was extended from south to central regions and from plain to low mountainous regions. For assessing vulnerability with high accuracy, it is necessary to prepare more related indicators and consider weight of indicators and use climate prediction data based on the newly released scenario when assessing vulnerability.

A Review of Studies on Vulnerability Indicator for the Climate Change Adaptation over South Korea (한반도 기후 변화 적응을 위한 취약성 지수 산정에 관한 고찰)

  • Kim, Cheol-Hee;Kim, Eun-Hwa;Song, Chang-Keun;Hong, You-Deog;Yoo, Jeong-A;Hong, Sung-Cheol
    • Journal of Environmental Science International
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    • v.20 no.6
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    • pp.789-798
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    • 2011
  • Climate change assessment, together with climate change adaptation process, would be one of the worldwide important issues, and the study on climate change vulnerability indicator has been an essential problem for climate change adaptation. Vulnerability indicator can be used as a good tool to estimate the impact of climate change and to map out the distribution of its vulnerability over the given area both in Korea and other countries. This study addressed the conceptual summary on the assessment of climate change and its adaptation process. Previous studies on how to yield the vulnerability indicators of climate change are reviewed and several previous results of vulnerability indicators applied to Korean provinces are also discussed here.

Application Study of Vulnerability Assessment Models for Water Resources to Climate Change by Spatial and Watershed Scales (수자원 기후변화 취약성 평가모형의 공간 및 유역규모별 적용 연구)

  • Chung, Ji Woong;Lee, Woo-Kyun;Cui, Guishan;Lee, Sang Chul;Choi, Sungho;Choi, Hyun-Ah
    • Journal of Climate Change Research
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    • v.1 no.1
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    • pp.21-30
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    • 2010
  • In this study, vulnerability of water resources to climate change was assessed in terms of flood, drought and water management. Criteria and indicators were employed for assessing the vulnerability. The criteria used to assess the vulnerability was sensitivity of the study area, the exposure to climate and the adaptability to climate change. These criteria were quantified and standardized using corresponding indicators. Vulnerability of water resources to climate change is assessed to be generally increasing over time. The appropriate watershed scales are the large drainage basin for national level vulnerability assessment and the small drainage basin for local one.

Developing of Construction Project Risk Analysis Framework by Claim Payout and its Application

  • Kim, Ji-Myong;Park, Young Jun;Kim, Young-Jae;Yu, YeongJin
    • International conference on construction engineering and project management
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    • 2015.10a
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    • pp.192-194
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    • 2015
  • The growing size and complex process in construction project recently leads to increase risk and the losses as well. Even though researchers have identified the major risk indicators, there is lack of comprehensive and quantitative research for identifying the relationship between the risk indicators and economic losses associated with construction projects. To address this shortage of research, this study defines risk indicators and create a framework to assess the influence of economic losses from the indicators. An insurance company's claim payout record was accepted as the dependent variable to reflect the real economic losses. Based on the claims, we categorized the causes and results of accidents. To establish framework, built environment vulnerability indicators and geographical vulnerability indicators were employed as the risk indicators. A Pearson correlation analysis was adopted to validate the relationship with loss ratio and risk indicators. Consequently, this framework and its results may offer significant references for under writers of insurance companies and loss prevention activities.

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Vulnerability Assessment to Urban Thermal Environment for Spatial Planning - A Case Study of Seoul, Korea - (공간계획 활용을 위한 도시 열환경 취약성 평가 연구 - 서울시를 사례로 -)

  • Eum, Jeong-Hee
    • Journal of the Korean Institute of Landscape Architecture
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    • v.44 no.4
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    • pp.109-120
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    • 2016
  • This study aims to assess vulnerability in urban thermal environments of Seoul by using indicators frequently used in previous studies as well as effective indicators for spatial planning like urban and environmental planning. For this purpose, fifteen indicators that influence urban thermal environments such as heat waves, urban heat island effects, and urban micro-climates were identified based on literature reviews. Indicators for presenting urban structure and spatial properties were included; for example, building volume as 'exposure to climate', buildings completed before 1980 as 'sensitivity', and green space areas as 'adaptive capacity'. Among them, twelve indicators were applied to assess vulnerability in urban thermal environments of Seoul by using a GIS spatial analysis combined with fuzzy logic. The results show that the Gangnam area is identified as more vulnerable to a heat environment as compared to the Gangbuk area. In the Gangnam area, Seocho-gu, Gangnam-gu, Dongjak-gu, Yeongdeungpo-gu, Gangseo-gu were relatively high in vulnerability, while Dongdaemun-gu, Gangbuk-gu, Gwangjin-gu, Jungrang-gu were relatively high in the Gangbuk area. Gwanak-gu, Dobong-gu, Eunpyeong-gu, and Nowon-gu, which include forested areas, have low vulnerability in the sectors of 'exposure to climate' and 'sensitivity' due to the impact of Gwanaksan and Bukhansan. However, some areas with high vulnerability like Seocho-gu and Gangnam-gu may have lower vulnerability if the indicator 'status of air conditioning' from the sector of 'adaptive capacity' is used. This study could support the establishment of a practicable thermal environment policy and spatial planning to reduce heat-related risks in the field of urban and environmental planning.