• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2008년도 학술발표회 논문집
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• pp.59-66
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• 2008

A country's macro developing strategies will greatly impose upon its water resources allocation. Based upon the relationship between national macro developing strategies and water diversion projects layout, the paper discusses the vital influence of water diversion projects caused by China's food security and sustainable development strategy implemented in recent years, and points out that it is an inevitable choice of constructing inter-basin water diversion projects in north China in view of local water resources can't meet the demand of socio-economic development and eco-environment protection, and then recommends China's water diversion projects layout in the current and future, which attaching most importance to the South-to-North Water Diversion Project.

• 환경영향평가
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• 제21권1호
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• pp.219-227
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• 2012

Daily solar radiation is essential for water resources planning and environmental impact assessment. However, radiation data is not commonly available in Korea other than in big cities, and there has been no direct measurement for rural areas where water resources planning and environmental impact assessment is usually most needed. In general, missing radiation data is estimated from nearby regional stations within a certain distance, and this study compared two dominant methods (modified Angstrom equation and transmittance interpolation method) at six stations in Nakdong River watershed area. Two methods shows a similar level of accuracy but the transmittance interpolation method is likely to be superior in that there is no need for any measurement element since the modified Angstrom equation require the sunshine hour measurement. This study will contribute to improve water resource and water quality management in Nakdong River watershed.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2023년도 학술발표회
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• pp.36-36
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• 2023

Sedimentation is a natural process that occurs in all reservoirs. Sedimentation problem reduces the storage capacity of the reservoir and limits its ability to provide water for various uses, such as irrigation, hydropower generation, and flood control. Therefore, predicting reservoir sedimentation is important for ensuring the efficient operation and sedimentation management of a reservoir and . In this study, the HECRAS model was applied to predict longitudinal distribution of deposited sediment in the Pleikrong reservoir to 2050. Different scenarios was considered: (i) no climate change, (ii) climate change (under two emissions scenarios, RCP4.5 and RCP8.5), and (iii) climate change and land use change (followed land use planning of the watershed). The computation results with different scenarios were analyses and compared. The results show that the reservoir reduced storage volume's rate and sedimentation proceed toward to the dam in the case of climate change is faster than in the case of no climate change. Analyses also indicates that following the land used planning could also improve the long-term problem of the reservoir sedimentation. The outcomes of this study will be helpful for a sustainable plan of sediment management for the Pleikrong reservoir.

• 한국측량학회지
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• 제13권1호
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• pp.49-59
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• 1995

본 연구는 농업용수 개발사업의 기초조사와 기본계획 및 실시설계 과정에 수치지형정보를 활용함으로써 농업용수 개발사업의 경제적이고 합리적인 추진에 기여함을 목적으로 한다. 본 연구에서는 대상지역의 수치지형정보를 취득하기 위해 항공사진을 이용하였으며, 이를 보간하여 대상계획에 적합한 수치표고모형을 생성함은 물론, 관련도형정보 및 속성자료를 이용하여 농업용수 개발사업의 기초조사용 데이터 베이스를 설계하였다 본 연구의 수행결과, 본 연구에서 정 저한 방법이 농업용수 개발사업의 효율적 인 수행에 기여함을 알 수 있었다.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2008년도 학술발표회 논문집
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• pp.26-32
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• 2008

Middle Route Project, the largest water conveyance system in China delivers the water of Changjiang River to North China. In order to create canal operation simulation system, mathematical models are established based on the analysis of hydraulics about steady flow, unsteady flow, and check gate. By simulating the canal operation behavior, we improved the check gate control algorithm and predicted the change process of water surface and flow profile which is very valuable to actual canal operation.

• 한국수자원학회논문집
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• 제40권8호
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• pp.665-675
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• 2007

해안 지역 지하수 최적 관리의 기본계획 수립 단계에 사용될 수 있는 간편한 개발가능량 산정식이 제안되었다. 산정식은 대수층 특성, 해수침투허용 거리, 지하수 해안유출량 그리고 양수정의 위치 등 주요 영향 변수들의 함수이므로 합리적이며, 보편적으로 사용되는 해석 해들과 Ghyben-Herzberg 법칙을 이용하여 유도되었다. 산정식은 관련 변수들의 양 함수로 표현될 수 있으므로 그 적용이 매우 간편하다. 또한 주로 주관적 경험에 의하여 그 값이 결정되어 온 양수정의 영향반경을 대수층의 수리특성과 양수량 등의 함수로 산정할 수 있는 식이 제안되었다. 가상 유역에 대한 적용과 수치 해와의 비교분석을 통하여 제안된 식들이 보수적인 결과를 산출한다는 것을 보였다. 제안된 식들을 기존 관정들이 존재하는 유역에 적용하면 추가 개발가능량을 평가할 수 있다.

• 한국농공학회지
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• 제29권2호
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• pp.30-38
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• 1987

Because the development of Korea's water resources will reach its limit in the near future, preparations should now be begun to deal with problems that may come as a result. It will be too late to start preparations when the water resources have already reach their limitation and, as the preparations cannot be done in a day, it will take a long time to provide them. Now is the great turning point to accumulate our technical experiences and attain our plans gradually. The preparations against this are summarized as follows; 1)The transitory use of water should be turn into the recurrent use for the future. 2)A cooperative water control system of an area should be arranged. 3)Water saving, control of water demand, and the multiple use of water should be encouraged. To do this effectively, people should be informed of the value and rarity of water. 4)The development of freshwater reserviors at estuaries is closely related to the development of water utilization in the whole river basin. The development of water resources by the construction of freshwater reservoirs at the estuaries should be started, when the development of upstream water resources reaches their limitation. 5)The existing water utilization structures should be reorganized by water resources exchange planning, so the effective use of water in large areas be attained.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2020년도 학술발표회
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• pp.116-116
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• 2020

Gilgit-Baltistan (GB) is a highly mountainous and remote region covering 45% of Upper Indus Basin (UIB) with around 1.8 million population is vulnerable to climate change and socio-economic growth makes water resources management and planning more complex. To understand the water scarcity in the region this study is carried out to project water supply and demand for agricultural and domestic sector under various climate-socio-economic scenarios in five sub catchments of GB i.e., Astore, Gilgit, Hunza, Shigar and Shyok for a period of 2015 to 2050 using Water Evaluation and Planning (WEAP) model. For climate change scenario ensembled mean of three global climate models (GCMs) was used under three different Representative Concentration Pathway (RCP) scenarios (RCP2.6, RCP6.0 and RCP8.5). The Shared Socioeconomic Pathways (SSPs) and agricultural Land Development (LD) scenarios were combined with climate scenarios to develop climate-socio-economic scenario. Our results indicate that the climate change and socio-economic growth would create a gap between supply and demand of water in the region, with socio-economic growth (e.g. agricultural and population) as dominant external factor that would reduce food production and increase poverty level in the region. Among five catchments only Astore and Gilgit will face shortfall of water while Shyoke would face shortfall of water only under agricultural growth scenarios. We also observed that the shortfall of water in response to climate-socio-economic scenarios is totally different over two water deficient catchments due to its demography and geography. Finally, to help policy makers in developing regional water resources and management policies we classified five sub catchments of UIB according to its water deficiency level.

• Water Engineering Research
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• 제6권2호
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• pp.73-89
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• 2005

Two kinds of high resolution GCMs with the same spatial resolutions but with different schemes run by domestic and foreign agencies are used to clarify the usefulness and sensitivity of GCM for water resources applications for Korea. One is AMIP-II (Atmospheric Model Intercomparison Project-II) type GCM simulation results done by ECMWF (European Centre for Medium-Range Weather Forecasts) and the other one is AMIP-I type GCM simulation results done by METRI (Korean Meteorological Research Institute). Observed mean areal precipitation, temperature, and discharge values on 7 major river basins were used for target variables. Monte Carlo simulation was used to establish the significance of the estimator values. Sensitivity analyses were done in accordance with the proposed ways. Through the various tests, discrimination condition is sensitive for the distribution of the data. Window size is sensitive for the data variation and the area of the basins. Discrimination abilities of each nodal value affects on the correct association. In addition to theses sensitivity analyses results, we also noticed some characteristics of each GCM. For Korean water resources, monthly and small window setting analyses are recommended using GCMs.

• Journal of Forest and Environmental Science
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• 제22권1호
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• pp.41-49
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• 2006

일본에서 2004년도에 발행된 산림토목 목제구조물 시공 매뉴얼에 실려 있는 산림토목 목제구조물 설계지침은 총설, 목재의 이용과 특성, 조사, 계획 및 설계 등으로 구성되어 있으며, 이 논문에서는 총설, 목재의 이용과 특성, 조사 및 계획에 대하여 분석하였다. 분석 결과, 목재의 특성은 목재의 물리 화학적 특성, 환경에의 영향, 심리 생리적인 효과 및 목재의 부후성에 대해 정리되어 있으며, 조사항목은 유수에 의한 영향의 정도, 일사의 정도, 흰개미의 생식 유무, 지표수 및 지하수의 유하 상황, 계류 등에 서식하는 동식물의 상황, 물이용 상황 등이 제시되었다. 또한 계획에서는 목제구조물의 구조와 설치장소, 취급방법, 해당 지역의 목재 간벌재의 이용, 방부처리 등에 대하여 설명되어 있다.