• 제목/요약/키워드: Seomjin river system

검색결과 67건 처리시간 0.027초

영산강·섬진강 수계 효율적 물관리를 위한 유역관리 시스템 구축 (Establishment of Watershed Management System for Efficient Water Management in the Yeongsan and Seomjin River Basin)

  • 정희정;정재운;김갑순;박하나;임병진;허유정;이준배
    • 한국환경농학회지
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    • 제31권2호
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    • pp.200-204
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    • 2012
  • BACKGROUND: Recently, the project for improvement of water quality and preservation of the Yeongsan and Seomjin river basin was actively promoted. However, the publicity for many results of the project is not actively done, thus they are rarely used. Furthermore, there are not sufficient information about the projects preformed by other research institutions. Therefore, the watershed management system for efficient water management is needed in the Yeongsan and Seomjin river basin. CONCLUSION: Firstly, establishment of the Yeongsan and Seomjin river basin management research center, Secondly, construciton of wed-based water management research network. These results will serve as a basic data for efficient water management.

섬진강 유출수의 3차원 거동 특성 (Three-dimensional Mixing Behaviour Characteristics of Seomjin River Discharges)

  • 김종규;김명원;강태순;윤은찬
    • 한국해양공학회지
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    • 제20권4호
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    • pp.50-57
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    • 2006
  • The effect of discharges from the Seomjin River on the dispersion of thermal effluent from the Hadong Power Plant, located along the south coast of Korea, was investigatedusing intensive field observation and three-dimensinal Princeton Ocean Model simulations. A POM and observed CTD data was used to predict the mixing behaviour of the Summer freshet, during the July 2005 intensive observing period. The dispersal of the river discharge anomaly, associated with the Seomjin River plume, was seen to be highly responsive to tidal currents and river flows during the spring tide.

MGIS 기반 섬진강 하구역 3차원 해수유동 (Three-dimension리 Circulation of MGIS based Seomjin River Estuary)

  • 박상우;김종규;이문옥
    • 한국해양공학회:학술대회논문집
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    • 한국해양공학회 2006년 창립20주년기념 정기학술대회 및 국제워크샵
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    • pp.431-434
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    • 2006
  • This study reviews the properties of coastal ocean and Seomjin River estuary spaces then define some MGIS(Marine Geographic Information System) related terminologies for clarifying the scope of MGIS boundaries. Therefore, we show the three-dimensional circulation of MGIS-based Seomjin River Estuary integrating three-dimensional POM model and observed data.

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섬진강 하구역 Mobile MGIS 구축 연구 (Mobile MGIS Study for the Seomjin River Estuary)

  • 박상우;김정현;김종규
    • 수산해양교육연구
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    • 제28권1호
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    • pp.172-179
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    • 2016
  • The study of Mobile MGIS (Marine Geographic Information System) based on the Android Mobile Platform is mainly performed on effective methodologies which transform real world data to computing world data. Mobile GUI system has its own target on reliable data service by acquisition of geometric information using EFDC (Environmental Fluid Dynamics Code) Model, accurate measurement and graphical visualization. Even simple visualizations can aid in the interpretation of complex hydrodynamic relationships that are frequently encountered in the marine environment. The Mobile MGIS provides an easy way for hydrodynamics geoscientists to construct complex visualizations that can be viewed with free software. This study proposes a Mobile GUI MGIS using EFDC Model result of Seomjin River estuary. Finally, we design a Seomjin River estuarine Coastal Waters Mobile MGIS integrating above data models. It must adds more ecological information and the various service item for approach more easily in order to user.

최적선형보정을 이용한 앙상블 유량예측 시스템의 개선 (Improvement of the Ensemble Streamflow Prediction System Using Optimal Linear Correction)

  • 정대일;이재경;김영오
    • 한국수자원학회논문집
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    • 제38권6호
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    • pp.471-483
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    • 2005
  • 일단위 강우-유출모형인 SSARR모형을 이용하여 한강, 낙동강, 섬진강유역에 월 앙상블 유량예측 시스템을 구축하였다. 우선 SSARR모형의 월 평균 유출량에 대한 모의정확성을 평가한 결과 한강과 낙동강유역에서는 과소추정하는 경향이 뚜렷하였으며, 섬진강유역에서는 모의오차의 분산이 커 정확성 개선이 필요하였다. 최적선형 보정기법을 적용하여 SSARR모형의 모의유량을 보정한 결과, 섬진강을 제외한 한강과 낙동강유역의 검증지점에서는 모의 정확성이 크게 개선되었다. 또한 1998년부터 2003년까지 월 앙상블 유량예측을 실시하여 예측 정확성을 평가하였다. 한강과 낙동강유역에서 최적선형 보정기법을 이용할 경우 앙상블 유량예측 정확성이 크게 개선되었으나, 섬진강유역은 개선효과가 미비하였다.

Fisheries resources management of crucian carp based on assessment of fish stock and potential yield in the mid-upper system of Seomjin River

  • Ryu, Hui Seong;Jang, Sung Hyun;Lee, Jung Ho;Lee, Jung Joon
    • Journal of Ecology and Environment
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    • 제37권4호
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    • pp.209-216
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    • 2014
  • This study was undertaken to suggest an effective fisheries resources management system by using stock assessment and potential yield analyses of crucian carp population in the mid-upper system of the Seomjin River. Fieldwork was conducted seasonally from 2008 to 2009 in the mid-upper system of the Seomjin River. The stock assessment was carried out by the swept area method and the potential yield was estimated by improved fisheries resource potential estimation system based on the Allowable Biological Catch. Also, the yield-per-recruit analysis was used to review the efficient management implication of the resource, Carassius auratus. As a result, the age at first capture ($t_c$) was estimated as 1.468 year, converted body length (BL) was 10.8 cm. Meaning the current fishing intensities, the instantaneous coefficient of fishing mortality (F) was $0.067year^{-1}$, and the yield-per-recruit analysis showed that the current yield per recruit was estimated to be 15.999 g with F and $t_c$. The instantaneous rate of fishing mortality that provides for Allowable Biological Catch ($F_{ABC}$) based on the current $t_c$ and F was estimated as $0.618year^{-1}$. Therefore, the optimum fishing intensities could be achieved at the higher fishing intensity for Carassius auratus. The calculated annual stock of C. auratus was estimated as 7,608 kg, and the potential yield was estimated as 343 kg with $t_c$ and F at the fixed current level. Using yield-per-recruit analysis, if F and $t_c$ were set at $0.618year^{-1}$ and 2 year, the yield per recruit and total allowable catch would be predicted to increase to 62 g and 2,531 kg by about 3.9 times and 7.3 times, respectively.

단기 하천수질 예측을 위한 신경망모형 (Artificial Neural Networks for Forecasting of Short-term River Water Quality)

  • 김만식;한재석
    • 한국지반환경공학회 논문집
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    • 제3권4호
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    • pp.11-17
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    • 2002
  • 본 논문의 목적은 섬진다목적댐 유역의 하천을 대상으로 강우시에 단기 수질상태를 예측하기 위하여 병렬다중결선의 계층구조를 갖는 신경망이론을 이용하였다. 본 연구에 적용한 신경망이론의 학습알고리즘으로는 역전파알고리즘을 사용하였으며, 최적모형의 개발을 위해 모멘트법-적응학습율기법을 이용하였다. 하천 수질오염 부하량에 영향을 미치는 요소로서 상류로부터 유입되는 유입량과 수질인자인 BOD, COD, SS를 고려하였다. 섬진다목적댐 유역에 대해 단기 수질을 예측할 수 있는 다층신경망모형을 개발하기 위해 은닉층 노드수와 학습회수에 변화를 주어 각 수질인자별로 4가지씩 총 12개의 모형을 구성하여 학습을 실시하였다. 제안된 신경망모형의 검증을 위해 학습시키지 않은 수질자료를 예측한 결과 양호한 것으로 분석되었고, 하천수계의 단기 수질오염 예측에 활용할 수 있을 것으로 사료되었다.

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영산강, 섬진강 유역권내 29개 정수생태계의 동물플랑크톤 군집 크기 구조(2010~2011) (Community Size Structure of Zooplankton Assemblages in 29 Lentic Ecosystems on the Youngsan-Seomjin River Basin (2010~2011))

  • 김현우;라긍환;박종환;송효정;황경섭;임병진;이학영
    • 환경생물
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    • 제30권1호
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    • pp.64-70
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    • 2012
  • This study compares the abundance and community structure of zooplankton organisms from the littoral and pelagic regions, and considers particularly trophic levels vs. zooplankton abundances. Zooplankton samples, collected every 3 months over a year from 2010 to 2011 at 29 temperate lakes and reservoirs, which belong to two different river basins (Youngsan and Seomjin River). The spatial pattern of rotifers was similar to that of total zooplankton abundance. This reflected the fact that rotifers strongly dominated the zooplankton community. There were considerable spatial variations in total zooplankton abundance (ANOVA, p<0.01), while there were no significant differences both in littoral and pelagic regions in abundance of zooplankton (ANOVA, p=0.205). The mean abundance of zooplankton in eutrophic systems was much higher than that of mesotrophic systems, while significant difference in number of species and diversity index were not shown in both trophic systems.

MGIS기반 섬진강 하구역 Web GUI 시스템 구축 (Web GUI system for the Seomjin River Estuary based on MGIS)

  • 박상우;김종규;김정현
    • 한국정보통신학회:학술대회논문집
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    • 한국해양정보통신학회 2007년도 춘계종합학술대회
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    • pp.231-234
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    • 2007
  • 본 연구는 섬진강 하구역의 효율적이고 체계적인 해역환경관리를 위하여 해양관측데이터 및 수치모델링 자료 그리고 MGIS를 이용한 해역환경 DB 구축, 가시화, 체계화 및 SVG 언어를 이용한 MGIS기반 Web GUI 시스템을 구축하였다. 그 결과 섬진강 하구역의 물리해양학적 특성을 체계적으로 구현하여 파악할 수 있음을 확인하였다.

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5대강(大江) 수계유역(水系流域) 수문량(水文量) 변동추이(變動推移) (Trend of Some Hydrologic Features in the Five Great River Systems in Korea)

  • 손동섭;서승덕
    • Current Research on Agriculture and Life Sciences
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    • 제17권
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    • pp.31-38
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    • 1999
  • 3차 국토종합개발 10개년 계획기간 (1992-2001) 가운데 1994년~1998년은 에리뇨와 라니냐 등 해수온도의 상승 및 하강 현상에 의한 게릴라성 폭우등 이상기후현상이 뚜렷한 해로 평가하고 있다. 이 기간에 대한 한강, 낙동강, 금강, 영산강 그리고 섬진강의 한국 5대강수계에 대한 강수량, 유출량 및 저수량을 도출하고 전국 평균 (1961년~1990년)의 해당 수문량과의 비교분석을 시행하여 그 결과를 5대강 수계의 수자원관리 및 방재수립에 참고 하고져 조사 분석한바 5 대강 수계의 표본기간 (1994~1998, 48개월) 평균 강수월수가 예년평균 동기간에 비하여 많았던 기간은 20개월 이었고, 유출은 평균 8.2개월에 이른다. 한편 댐 저수율은 한강수계의 경우 비교적 많은 량으로 이상적인 현상을 보인 반면, 낙동강수계는 초기에는 낮은 저수율이고 후기에는 높은 저수율 현상 이었고, 금강, 영산강 및 섬진강은 초기부터 후기로 점증 하는 경향으로 나타나 유역적인 편차현상이 크게 나타나 수자원의 관리와 방재계획을 수계의 연결 및 호환적 종합 운영등의 방식이 검토되어야 할것으로 생각된다.

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