• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2023년도 학술발표회
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• pp.177-177
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• 2023

The impacts of dams on transboundary flow are complex and challenging to project and manage, given the potential moderating influence of a broad range of anthropogenic and natural factors. This study presents a global meta-analysis of 168 studies that examines the effect magnitude of dams on downstream seasonal, annual flow, and hydrological extremes risk on 39 hotspot transboundary river basins. The study also evaluates the impact of 13 factors, such as climate, basin characteristics, dams' design and types, level of transboundary cooperation, and socioeconomic indicators, on the heterogeneity of outcomes. The findings reveal that moderators significantly influence the impact of dams on downstream flow, leading to considerable heterogeneity in outcomes. Transboundary cooperation emerges as the key factor that determines the severity of dams' effect on both dry and wet season's flows at a significance level of 0.01 to 0.05, respectively. Specifically, the presence of water-supply and irrigation dams has a significant (0.01) moderating effect on dry-season flow across basins with high transboundary cooperation. In contrast, for wet-season flow, the basin's vulnerability to climate extremes is associated with a large negative effect size. The various moderators have varying degrees of influence on the heterogeneity of outcomes, with the aridity index, population density, GDP, and risk level of hydro-political tension being the most significant factors for dry-season flow, and the risk level of hydro-political tension and basin vulnerability to climate extremes being the most significant for wet-season flow. The results suggest that transboundary cooperation is crucial for managing the impacts of dams on downstream flow, and that various other factors, such as climate, basin characteristics, and socioeconomic indicators, have significant moderating effects on the outcomes. Thus, context-specific approaches are necessary when predicting and managing the impacts of dams on transboundary flow.

• 한국폐기물자원순환학회지
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• 제35권8호
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• pp.709-720
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• 2018

Since the import ban of plastic waste in China has been enforced, plastic wastes were not properly collected and recycled in Korea. Hence, the management strategies for plastic waste in Korea should be improved by examining the regulations and policy in developed countries such as United States, Japan, EU and United Kingdom. The management strategy for the recycling cycle should be implemented to expand the labeling system of separation and discharge, reduce the consumption of plastic products, automate the separation and sorting method in recycling facilities, and improve the economical efficiency of the recycling cycle. The concept of residual waste (secondary waste) in the material flow analysis should be implemented to identify the shortage point in the plastic waste stream. Finally, the cooperation with international communities is required for a transboundary movement of plastic waste, which includes participation at the working group of international standards to recycle plastic waste.

• 한국수자원학회논문집
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• 제53권1호
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• pp.71-82
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• 2020

본 연구에서는 공유하천인 북한강 유역을 대상으로 북한 임남댐 운영에 따라 북한강 댐들의 하천유지유량 확보여부에 대해 평가하였다. WAMIS 자료 기준 1991. 01~2018. 12 기간 동안의 시자료, 일자료, 월자료의 댐 유입·유출량 자료를 기준으로 분석을 수행하였다. 시평균 자료를 이용한 물수지분석 결과를 살펴보면, 평화의댐-화천댐과 춘천댐-소양강댐-의암댐의 댐 방류량 기준 상류유역 유입량이 (-)값으로 산정되었으나 일평균이나 월평균에서는 합리적으로 추정되어 자료의 시간단위에 따라 댐유입량·방류량 물수지분석 결과가 달라질 수 있음을 확인하였다. 두 번째로 임남댐 운영 후에 화천댐 월평균 유입량이 크게 감소하는 것으로 나타나 임남댐 운영이 북한강 수계 댐에 큰 영향을 미치는 것을 확인하였다. 마지막으로 임남댐 운영으로 인한 북한강 수계 댐들의 유입량과 총방류량의 감소에 따른 하천유지유량 총부족량과 부족시간의 증가비율이 최대 +330%로 증가하는 것으로 나타나 임남댐 운영이 하천유지유량 부족의 주요 원인 중 하나로 분석되었다. 따라서 향후 중요성이 커지는 하천유지유량을 확보하는 다양한 방안 마련에 대한 연구가 필요하다.

• 한국대기환경학회지
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• 제29권5호
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• pp.553-573
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• 2013

This paper aims to give a summary and review of the research trend about subjects of Asian Dust (AD) storm in the last three decades. The AD research was focused on classification of synoptic scale data and finding inflow pathway in early stage. Recently, new approaches have been made to explain chemical composition, transportation, transboundary movement reaction of AD, using satellite data, 3D modeling, the aerosol time of flight mass spectroscopy, etc. During AD events, a large amount of dust particles flow into Korea and Japan from AD source areas, and they are highly likely to be mixed with toxic substances when air mass contained AD particles pass over seriously polluted areas. We concluded that, considering that AD events were classified into two cases according to the source area and pathway, the concentrations of crustal components did not increase at the initial stage of AD events, Whereas ammonium-sulfate, trace metal element, OC, EC relatively increased in the early stage. This explains AD events have the possibility of being accompanied with polluted air mass or particles. Also, we further need to compare and summarize the results of AD studies which already have been conducted, and prepare strategies for particle management, particularly for Black Carbon (BC) and Brown Carbon (BrC) which are considered to induce climate change effects.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2005년도 학술발표회 논문집
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• pp.492-496
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• 2005

하천은 정치적, 행정적, 사회적 구분을 자유자재로 넘나들고 물과 토지는 강한 연관성을 가지고 있다. 물과 하천의 이러한 특성들은 수자원을 효율적으로 관리하는데 큰 제약요소로 간주되어 왔다. 따라서 수자원을 유역이라는 한정된 범위 내에서 모든 인간활동과 자연현상을 통합적으로 고려한다는 개념은 바람직한 관리방안으로 알려지고 있다. 유역관리는 이러한 관점에서 물을 경제적이고 공평하게 관리하고 분배하여 수자원에 대한 장기적이고 지속가능한 해결방안을 마련하는 것이다. 본 연구는 유역관리에 대한 한국과 미국의 차이점을 파악하기 위하여 크게 세 가지 부분으로 이루어져 있다. 첫 번째 부분은 한국에서 1960년대 이후 시작된 유역관리가 1990년대에 수질관리 차원의 대유역관리로 진행되는 과정을 고찰하였다. 두 번째에는 미국에서 대유역관리가 실종되고 소유역관리가 확산되는 과정을 밝혔다. 마지막으로 유역관리에 대한 한국과 미국의 전개과정을 비교검토하고 그 차이점을 평가하였다. 미국에서는 대유역관리에 대한 관심이 쇠퇴한 반면에 수문학적 지역으로서의 소유역이 주요 관심대상으로 떠오르고 있다. 이에 반하여 우리나라에서는 현재 정치적 차원의 물관리체제개편과 사회적 차원의 강살리기운동이 동시에 전개되고 있다. 따라서 우리나라가 당면한 유역관리의 과제는 미국보다도 더욱 복합적이다.

• 한국대기환경학회지
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• 제34권2호
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• pp.294-305
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• 2018

Quantitative assessment on the impact from North Korean emissions to surface particulate matter(PM) concentration in the Seoul Metropolitan Area (SMA), South Korea is conducted using a 3-dimensional chemistry transport model. Transboundary transport of air pollutants and their precursors are important to understand regional air quality in East Asian countries. As North Korea locates in the middle of main transport pathways of Chinese pollutants, quantifiable estimation of its impact is essential for policy making in South Korean air quality management. In this study, the Community Multiscale Air Quality Modeling System is utilized to simulate regional air quality and its sensitivity, using the Comprehensive Regional Emissions inventory for Atmospheric Transport Experiment 2015 and the Clean Air Policy Support System 2013 emissions inventories for North and South Korea, respectively. Contributions were estimated by a brute force method, perturbing 50% of North and South Korean emissions. Simulations demonstrate that North Korean emissions contribute $3.89{\mu}g/m^3$ of annual surface PM concentrations in the SMA, which accounts 14.7% of the region's average. Impacts are dominant in nitrate and organic carbon (OC) concentrations, attributing almost 40% of SMA OC concentration during January and February. Clear seasonal variations are also found in North Korean emissions contribution to South Korea (and vice versa) due to seasonal characteristics of synoptic weather, especially by the change of seasonal flow patterns.

• 복식문화연구
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• 제27권4호
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• pp.310-322
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• 2019

Since the late 2000s, fashion exhibitions have expanded to encompass a variety of concepts and sizes, and the need for research on exhibition planning, installation, and direction, including curating, is emerging. In this context, basic research is deemed necessary to encourage more experimental and in-depth research into the planning and orientation of domestic fashion exhibitions. Accordingly, by analyzing the exhibitions of Judith Clark, a pioneering fashion curator, and fashion exhibition planner, the aim of this study is to examine the characteristics and directing points of her curation. This study proceeds as follows: first, the concept and type of fashion exhibition and curation are investigated. Second, the exhibition cases curated or produced and installed by Judith Clark are examined and analyzed. Finally, based on this analysis, the characteristics and directing points of her curation are identified. In exhibitions, Clark's directing style features use of a variety of objects, the diversification of the flow-path through space division, and collaborations with various fields or experts. Clark's curation points, based on such characteristics, are as follows: reproduction-oriented curation to capture the age of the time based on historical research; storytelling-based curation; and transboundary curation with multiple methods and open processes. This study is expected to serve as a foundation and precedent that will lead to further research on fashion exhibitions and implementation.

• Weed & Turfgrass Science
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• 제3권4호
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• pp.305-311
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• 2014

유전자변형(genetically modified, GM)작물의 종자 및 꽃가루를 통한 환경 생태계로의 확산은 안전성평가와 안전관리에 있어 매우 중요한 요소이며, 국내에서는 LMO법에 따라 GM 작물의 개발 및 생산 등에 대한 안전관리와 GM 작물의 상업화를 위한 환경모니터링에 대한 방법, 기간, 빈도 등에 대한 계획을 요구하고 있다. 본 연구는 제초제저항성 들잔디(zoysiagrass)의 야외환경모니터링을 수행을 통한 환경모니터링 시스템 기반 구축을 위해 수행되었다. 연구에 사용된 GM 들잔디는 제초제저항 형질의 JG21과 JG21에 방사능처리로 웅성불임을 유도한 JG21-MS 등 2개의 이벤트를 이용하였다. 환경모니터링은 충남 성환, 충북 오창, 제주대 및 제주 납원읍 등 4개 격리포장 주변에서 2011년부터 2013년까지 종자 및 영양번식체에 의한 산포 조사와 화분에 의한 유전자이동에 대해 수행되었다. 모니터링 수행 결과 3개 지역에서 유전자이동 및 산포가 발견되지 않았으나, 2012년 제주 남원읍 지역 조사에서 격리포장 주변 2 m 부근에서 JG21 들잔디 1개체의 유출이 발견되어 보고 및 안전관리 조치를 수행하였다. 본 연구에서 사용된 GM 들잔디의 검출 방법과 환경모니터링 기법들은 GM 들잔디 개발을 위한 포장시험 연구와 상업화 후 환경모니터링을 위한 기초자료로 활용될 수 있을 것으로 기대한다.