• Title, Summary, Keyword: Hydrological observation

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Hydrological observation system deployment for water Water quantity, quality management (수자원 수량, 수질관리를 위한 수문관측시스템 구축방안)

  • Yu, Se-hwan;Jang, Dong-bae
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.882-885
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    • 2014
  • The duration and frequency of flooding and not last long, by the time climate change drought. The increased accordingly by reducing stream flow and year variation. This trend is expected to continue, and change towards a comprehensive analysis of such quantity, quality and management of water resources are managed. Flood warning system is called to perform them electronically to the management of water resources such as these to be in the organic water-related basic data acquisition, storage, processing and utilization. Can be divided into hydrological observations and flood warning systems alert system broadcast system. Hydrological observation system is the measurement from the hydrological stations (water level, rainfall, water) that can be observed hydrological status of the dam basin hydrological observation data transmitted to the central office, located at the dam monitoring and control system through a variety of networks including satellite, and the collected defined as the system that sent the K-water head office in 1 minute increments hydrological observation data. Headquartered in support of this decision. Dimensions of the dam are provided in addition to inward. Channeled through various hydrologic analysis and leveraging the data transfer. This paper looks at ways to build out hydrological observation system.

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Construction and Management of Hydrological Observation Network in Yi-dong Rural Basin (농촌유역 수문관측망 구축.운영(이동유역))

  • Park, Jae-Heung;Kim, Jin-Taek;Lee, Yong-Jig
    • Proceedings of the Korean Society of Agricultural Engineers Conference
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    • pp.261-264
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    • 2002
  • Yi-dong experimental basin is operated for research on the rural basin characteristics and accumulation of a long term data by hydrological observation equipments. It is basin area 9,440ha, length 14.4km and slope 0.67%. Hydrological observation network is constructed of rainfall meter 4points, reservoir storage level 3points and river water level 2points.

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Improving efficiency through the hydrological observation equipment performance test center and program (수문관측설비 성능시험센터 구축 및 프로그램 개발을 통한 효율 향상 방안)

  • Hong, Sung-Taek;Shin, Gang-Wook
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.19 no.11
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    • pp.2731-2738
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    • 2015
  • The importance of disaster observation facilities and system are increasing around the world in order to predict and prevent water disasters, which cause serious damage to life and property. A performance test center was built to stabilize performance, compatibility, and reliability of devices, and to verify new S/W. The aim of this study is to make a guideline to build standard verifying system for hydrological observation devices by building the performance test center. In addition, efficiency of management and operation of hydrological devices can be enhanced through device analysis, maintenance, database building, and grade certificate publishment after the device test.

Hydrological Radar Network Simulation Model Considering Effective Flood Management and Control

  • Shin, Hyun-Suk;Yoon, Kang-Hoon
    • Proceedings of the Korea Water Resources Association Conference
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    • pp.65-73
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    • 2002
  • Weather Radar have played an important role in both precipitation observation and hydrological operations over several countries and evaluated its efficient and necessities for the developed flood management and control. This paper describe the factors influencing the design the hydrological radar network in Korea and develop Hydrological Radar Network Simulation Model (HRNSM) based on GIS and UI system. Moreover, the methodologies for geographical and hydrological feasibility analysis for radar network were provided in detail manner.

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Yi-dong Basin(KARICO Experimental Site) Rainfall-Runoff Characteristics (이동유역(농기공 시험유역) 강우-유출특성)

  • Park, Jae-Heung;Huh, Yoo-Man
    • Proceedings of the Korean Society of Agricultural Engineers Conference
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    • pp.427-430
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    • 2003
  • Yi-dong experimental site is operated for research on the rural basin characteristics and accumulation of a long term data by hydrological observation equipments. This basin area is 9,300ha, length 14.4km and slope 0.67%. Hydrological observation network has 3 rainfall meter3, 3 reservoir storage levels and 2 river water levels.

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Operation of Experimental Basin(Yi-dong Basin) (시험유역운영(이동유역))

  • 박재홍;김진택;박지환
    • Proceedings of the Korea Water Resources Association Conference
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    • pp.611-614
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    • 2003
  • Yi-dong experimental basin is operated for research on the rural basin characteristics and accumulation of a long term data by hydrological observation equipments. It is basin area 9,440ha, length 14.4km and slope 0.67%. Hydrological observation network is constructed of rainfall meter 4points, reservoir storage level 3points and river water level 2points.

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Evaluation of Semi-Distributed Hydrological Drought using SWSI (Surface Water Supply Index) (SWSI를 이용한 준분포형 수문학적 가뭄 평가)

  • Kwon Hyung-Joong;Kim Seong-Joon
    • Journal of The Korean Society of Agricultural Engineers
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    • v.48 no.2
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    • pp.37-43
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    • 2006
  • A hydrological drought index, MSWSI (Modified Surface Water Supply Index) was suggested based on SWSI (Surface Water Supply Index). With the available data of spatially distributed observation station of precipitation, dam storage, stream water level and natural groundwater level, South Korea was divided into 32 regions. This was conducted to represent the calculated index as a spatially distributed information. Monthly MSWSI was evaluated for the period of 1974 and 2001. It is necessary to compare this result with PDSI (Palmer Drought Severity Index) and SPI (Standard Precipitation Index), and check the applicability of the suggested index in our hydrological drought situation.

Watershed Scale Flood Simulation in Upper Citarum Watershed, West Java-Indonesia using RRI Model

  • Nastiti, Kania Dewi;Kim, Yeonsu;Jung, Kwansue;An, Hyunuk
    • Proceedings of the Korea Water Resources Association Conference
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    • pp.179-179
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    • 2015
  • Citarum River is one of the important river in West Java, Indonesia. During the rainy season, flood happens almost every year in Upper Citarum Watershed, hence, it is necessary to establish the countermeasure in order to prevent and mitigate flood damages. Since the lack of hydrological data for the modelling is common problem in this area, it is difficult to prepare the countermeasures. Therefore, we used Rainfall-Runoff-Inundation (RRI) Model developed by Sayama et al. (2010) as the hydrological and inundation modelling for evaluating the inundation case happened in Upper Citarum Watershed, West Java, Indonesia and the satellite based information such as rainfall (GSMaP), landuse and so on instead of the limited hydrological data. In addition, 3 arc-second HydroSHEDS Digital Elevation Model (DEM) is used. To verify the model, the observed data of Nanjung water stage gauging station and the daily observation data are used. Simulated inundation areas are compared with the flood extent figure from Upper Citarum Basin Flood Management Project (UCBFM).

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Estimation of Parameters of the Linear, Discrete, Input-Output Model (선형 이산화 입력-출력 모형의 매개변수 결정에 관한 연구)

  • 강주복;강인식
    • Journal of Environmental Science International
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    • v.2 no.3
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    • pp.193-199
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    • 1993
  • This study has two objectives. One is developing the runoff model for Hoe-Dong Reservoir basin located at the upstream of Su-Young River in Pusan. To develop the runoff model, basic hydrological parameters - curve number to find effective rainfall, and storage coefficient, etc. - should be estimated. In this study, the effective rainfall was calculated by the SCS method, and the storage coefficient used in the Clark watershed routing was cited from the report of P.E.B. The other is the derivation of transfer function for Hoe-Dong Reservoir basin. The linear, discrete, input-output model which contained six parameters was selected, and the parameters were estimated by the least square method and the correlation function method, respectively. Throughout this study, rainfall and flood discharge data were based on the field observation in 1981.8.22 - 8.23 (typhoon Gladys). It was observed that the Clark watershed routing regenerated the flood hydrograph of typhoon Gladys very well, and this fact showed that the estimated hydrological parameters were relatively correct. Also, the calculated hydrograph by the linear, discrete, input-output model showed good agreement with the regenerated hydrograph at Hoe-Dong Dam site, so this model can be applicable to other small urban areas. Key Words : runoff, effective rainfall, SCS method, clark watershed iou상ng, hydrological parameters, parameter estimation, least square method, correlation function method, input-output model, typhoon gladys.

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Runoff Estimation of Imjin River Basin through April 5th Dam and Hwanggang Dam Construction of North Korea (북한의 4월5일댐과 황강댐 건설에 따른 임진강 유역의 유출량 평가)

  • Kim, Dong-Phil;Kim, Kyoung-Ho;Kim, Joo-Hun
    • Journal of Environmental Science International
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    • v.20 no.12
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    • pp.1635-1646
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    • 2011
  • This April 5th dam and Hwanggang dam, which are located in Imjin river, North Korea, become the main causes of water shortages and damages in Imjin river downstream. April 5th dam is assumed a small or medium-sized dam, its total storage volume reaches about 88 million $m^3$. And Hwanggang dam, multi-purposed dam of total storage volume approximately 0.3 billion $m^3$ to 0.4 billion $m^3$ is used as source of residental or industrial water in Gaeseong Industrial Complex. North Korea, which has April 5th dam and Hwanggang dam in Imjin river, manages water of approximately 0.39 billion $m^3$ to 0.49 billion $m^3$ directly. As water is storaged or discharged through dam, it causes a severe damage to areas in Yeoncheon-gun and Paju city, South Korea. Therefore, this study intends to analyze and estimate runoff through dam construction by using hydrological observation data and artificial data such as service water supply and agricultural water in Imjin river, water shortage and damage correctly.