• 물과 미래
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• 제29권1호
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• pp.235-248
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• 1996

홍수기중의 홍수조절과 이수의 서로 상반된 목적을 다루기 위해 예비방류 방안을 제안하였다. 예비방류 방안은 홍수조절목적의 가변제한수위와 이수목적의 최소확보 저수위를 고려하는 경우에, 홍수예측과 하류 조절점에서의 유량으로부터 저수지의 최적방류량을 결정하는데 이용할 수 있다. 본 모형은 대청과 충주다목적 댐을 대상으로 모의운영하였다. 예비방류의 시기와 크기를 결정하는 절차를 설명하고, 또한 과거의 홍수사상을 토대로 그 효과에 대해서도 검토하였다. 모의운영한 결과에 의하면 예비방류 방식의 조절방안은 단일 다목적 저수지의 홍수기중 최적 운영계획을 수립하는데 효율적이며, 아울러 실제의 홍수시에는 실시간 운영과 병행하여 이용할 수 있다.

• 한국콘텐츠학회논문지
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• 제17권10호
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• pp.538-547
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• 2017

우리나라의 물 관리 체계는 전형적으로 다부처가 관여하는 체계로, 효율성이 떨어지고 있다. 본 연구는 우리나라의 물 관리 현황과 개선방안을 제안하기 위하여 중앙과 지방의 물 관리 개선방안을 논의 하였다. 물 관리의 문제점으로는 물 관련 정책조정 기능체계의 부재, 수량 수질 농업용수 중심의 기능분리로 부처간 갈등 야기, 물 관련 업무의 분산으로 인한 중복투자 및 비효율, 중앙부처에 집중된 관리와 지역간 불균형 심화, 물자치권 확보 인식 미흡, 재원부족, 주민참여 미흡 등이다. 문제를 해결하기 위한 방안은 부처간 물 관리 기능조정 강화, 중앙부처의 물 관리 기능 이양 및 지방역량 강화 지원, 중앙과 지방의 바람직한 역할 분담, 물 관련 인식 변화 및 물자치권 확보 노력, 지방의 역랑강화, 재원 확보, 갈등 해소, 시민참여의 제도화와 물 관리 거버넌스 확대, 물자치권 확립 노력 등이다.

• 산업공학
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• 제21권1호
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• pp.75-84
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• 2008

It is a difficult task for decision makers(DMs) to choose an appropriate release plan which balances the conflicts between water storage and hydro-electric energy generation in a multi-reservoir operation problem. In this study, we proposed a DEA-based ranking procedure by which the DM can rank the potential alternatives and select the best solution among the Pareto-optimal solutions. The proposed procedure can resolve the problem of mix inefficiency that may cause errors in measuring the efficiency of alternatives. We applied the proposed procedure to the multi-reservoir operation problem for the Geum-River basin and could choose the best efficient solution from the Pareto-set which were generated by the Coordinated Multi-Reservoir Operating Model.

• 한국마린엔지니어링학회:학술대회논문집
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• 한국마린엔지니어링학회 2005년도 후기학술대회논문집
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• pp.106-107
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• 2005

Small vessels of less then 20 tonnage and leisure boats such as motor boats, sailing yachts, water motorcycle, etc have been excluded from the rules and regulations such as Marine Leisure Safety Act, Ship Act and Ship Safety Act for a long time in Korea. As a result, these small vessels and leisure boats have remained within the blind area of maritime safety and environment protection. Among these vessels and boats, some leisure boats such as motor boats of 20 horse power or more(excluding motor boats equipped with engine inside the vehicles), water motorcycles and rubber boats of 30 horse power or more are incorporated into the Marine Leisure Safety Act through the registry, safety inspection, insurance early 2005 in Korea. In relation to the scope of application of the national Acts concerned, I consider the conflicts between Acts and suggest the subordinate enforcement ordinance and regulations.

• 한국해양공학회:학술대회논문집
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• 한국해양공학회 2004년도 학술대회지
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• pp.114-119
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• 2004

Floating marina has been interests as an alternative to the facilities for recreational boats because of its cost effectivenes and less environmental conflicts. For tile present research, a square floating marina with a length of 400m and draft of 5m was used. This marina can be extended to 800m by putting anotjer one together. Tidal field around tile marina was simulated using a multi-level finite difference method. Tidal motion was assumed sinusoidal in a closed rectangular bay. Velocities and residual current were investigated for two cases of single marina and two marinas installed in tile bay. It was found that the horizontal velocity fields from the water surface to the structure bottom around tile marina were affected. In the marina basin, magnitude of velocity was reduced considerably but overall quality of water circulation was preserved even after two marina were installed.

• 한국수자원학회논문집
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• 제35권6호
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• pp.703-714
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• 2002

가뭄시 다양한 수요자의 수요량을 충족하지 못하고 한정된 물을 공급함으로 인해 많은 분쟁이 발생되고 있으며, 이를 해결하기 위하여 사회적 합의를 도출할 수 있는 용도별 용수 우선 순위의 의사 결정이 이루어져야 한다. 이와 같은 의사결정은 합리적이며 시스템적인 절차로 수행한다. 첫째, 가뭄으로 인한 영향을 받는 경제적, 환경적, 사회적 관점과 그와 관련된 세부적 속성들을 기준 레벨로 정하고 4가지의 대안을 명시한다. 둘째, 전문가와 지역주민에 대하여 쌍대비교 방법으로 설문을 실시한다. 최종적으로 의사속성결정법중의 하나인 계층분석과정(AHP)에 의해 상대적 가중치와 대안의 우선순위를 결정한다. 분석 결과 가뭄시 용수배분은 생활용수. 농업용수, 공업용수, 하천유지용수 순으로 배분하여야 하는 것으로 나타났다. AHP 기법은 설문시 일관성을 유지할 수 있는 방법만 개선된다면 수자원 시스템의 의사결정에 폭 넓게 적용될 수 있으리라 판단된다.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2008년도 학술발표회 논문집
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• pp.389-394
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• 2008

The purpose of this research was to develop a methodology to determine whether conjunctive surface water and groundwater management could significantly reduce deficits in a river basin with a relatively limited alluvial aquifer. The Geum River basin is one of major river basins in South Korea. The upper region of the Geum River basin is typical of many river basins in Korea where the shape of river basin is narrow with small alluvial aquifer depths from 10m to 20m and where most of the groundwater pumped comes quickly from the steamflow. The basin has two surface reservoirs, Daecheong and Yongdam. The most recent reservoir, Yongdam, provides water to a trans-basin diversion, and therefore reduces the water resources available in the Geum River basin. After the completion of Yongdam reservoir, the reduced water supply in the Geum basin resulted in increasing conflicts between downstream water needs and required instream flows, particularly during the low flow season. Historically, the operation of groundwater pumping has had limited control and is administered separately from surface water diversions. Given the limited size of the alluvial aquifer, it is apparent that groundwater pumping is essentially taking its water from the stream. Therefore, the operation of the surface water withdrawals and groundwater pumping must be considered together. The major component of the conjunction water management in this study is a goal-programmin g based optimization model that simultaneously considers surface water withdrawals, groundwater pumping and instream flow requirements. A 10-day time step is used in the model. The interactions between groundwater pumping and the stream are handled through the use of response and lag coefficients. The impacts of pumping on streamflow are considered for multiple time periods. The model is formulated as a linear goal-programming problem that is solved with the commercial LINGO optimization software package.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2011년도 학술발표회
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• pp.3-3
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• 2011

After the dissolution of the Soviet Union, the Kra-Araks Basin (KAB) became an international river basin with respect to the South Caucasus states of Armenia, Azerbaijan, and Georgia. However, there are no agreements regarding water allocation, water quality, or ecosystem maintenance among the aforementioned riparians. The main water problems in the basin include not only water quantity and quality, but also the lack of joint management. The aforementioned countries share many similar circumstances: location in a politically unstable but strategic region bureaucratic and structural issues; and more importantly, ongoing ethnic and related conflicts. Despite these obstacles, the countries recognize that they depend greatly on the basin, whose waters they must share. To that end, they proposed and participated in the joint NATO-OSCE South Caucasus River Monitoring (SCRMP) project between 2002 and 2009.The SCRMP sought to investigate and characterize the surface water quality in the KAB by providing equipment and training to all three countries. Several years' worth of water quality data were collected in the KAB: major ions; heavy metals; POPs (persistent organic pollutants); and radionuclides; The North Atlantic Treaty Organization (primary funder) and the Organization for Security and Co-operation in Europesupported the SCRMP not only to build capacity but also to promote cooperation and minimize conflict over water and other resources, thus providing a measure of security for Europe and other regions. The South Caucasus is a strategically-important region, functioning as a bridge between Asia and Europe. Energy-rich Azerbaijan seeks to become a key player in trade by serving as a transportation and energy hub between the energy and mineral-rich Central Asian KUT countries (Kazakhstan, Uzbekistan, and Turkmenistan) and Western Asia, Europe, and other areas. The presentation will summarize the scientific results of the SCRMP, elucidate the regional water-energy-security nexus, discuss future work in the region, and explain why the world needs to be concerned about the KAB and the entire South Caucasus.

• 한국습지학회지
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• 제8권1호
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• pp.97-106
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• 2006

This study discusses two canceled dam projects, Youngwol Dam in South Korea and Two Forks Dam in Colorado of the United States. Both of them illustrate how the new paradigm applies to regional water projects because they became victims of environmental opposition in the new paradigm. While the cases have no apparent close relationships and they occurred in different decades, they offer interesting comparisons. They were basically struggles between water development coalitions and environmental protection coalitions on regional water conflicts. The two proposed projects brought about fierce debates on large dam as they embraced a wide-range of environmental, social, and political issues rather than construction of dams themselves. Huge anti-dam oppositions scrapped them at the cost of nearly ten years for decision-makings and enormous financial resources for feasibility studies respectively. It identifies who the policy actors were, what the policy strategies were, and how the water policies evolved in both countries. The decision-makings on the two projects appeared at first glance to be made under formal institutional frameworks, but in actuality, they relied significantly on decisions of the two important political actors. The Korean society began to learn negotiation and cooperation approaches to solve the water conflict by establishing the Joint Task Force Team on Youngwol project in 1999. The team is recognized as a new conflict resolution method in South Korea because a diverse of stakeholder interests voluntarily participated in the decision-making process and discussed water issues directly. Even though the projects resulted in futile fruits in each country, they illustrate the images of the new paradigm that significantly affected in formulating regional water policies in South Korea and the United States.

• 환경영향평가
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• 제10권3호
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• pp.235-243
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• 2001

Since the middle of 1990s, in Korea a few researches on the optimal management technologies combining numerical model and GIS for the management of water environment in drinking watershed area and reservoir such as Paldang Lake have been carried out. In this study, the integrated water environment management system was been suggested to efficiently reflect the public awareness of the environment by integrating the web based distributed data collection system, GIS, public hearing system and water quality model. As all the components of the system have been developed using the World Wide Web and all data have been collected from the relevant agencies through the Internet, the water quality model could be implemented on the web directly. In consequence, the environmental geographic information in Paldang Lake could be acquired and analyzed through the Internet. The system can rapidly respond to the public right to know on environment, so the public will willingly participate in the governmental projects on environment. To verify the usability of the developed system, it has been applied to Paldang Lake. Especially when the web based model has been used, users can easily and confidentially get the prediction results by applying the minimum number of parameters for the water quality model. This model will provide clearness and scientific bases in the process of water quality prediction for the sensitive sites where there are critical conflicts between the residents and the developers. In this study, rapid water environment management technique without spatial and time limit has been suggested, which can contribute to the efforts on the government and the public participation.