Journal of Korea Water Resources Association (한국수자원학회논문집)

Korea Water Resources Association (한국수자원학회)
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Water Supply Performance Assessment of Multipurpose Dams Using Sustainability Index

지속가능성지수를 이용한 다목적댐의 용수공급 이행도 평가

  • Received : 2014.03.04
  • Accepted : 2014.03.26
  • Published : 2014.05.31
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Abstract

The water resources sustainability is becoming an important issue in consideration of hydrologic uncertainty by global warming and climate change. This study is to assess the water supply performance for the major multipurpose dams using sustainability index. Parameters, mostly utilized in water resources system assessment, are selected in respect of applicability and flexibility, and those parameters are used as a variable of the composite index. In practice, the composite index including reliability, resiliency, vulnerability and maximum deficit are applied to 15 multipurpose dams and 4 major basins. And to conclude, Daechungdam in the Geum river basin and Imhadam, Hapchondam and Namgangdam in the Nakdong river basin show low sustainability comparing with other dams. The Nakdong river basin needs to develop alternatives to improve water supply stability because it indicates the most poor sustainability level.

지구온난화와 기후변화에 의한 수문사상의 불확실성이 커지고 있는 점을 고려하여 수자원의 지속가능성은 매우 중요한 과제로 대두되고 있다. 본 연구는 우리나라 주요 다목적댐을 대상으로 지속가능성지수를 이용하여 용수공급 이행도를 평가하였다. 수자원시스템 용수공급 평가에 많이 활용되고 있는 지표들을 대상으로 적용성과 유연성을 고려하여 선정하고, 선정된 매개변수로 구성된 복합지수를 이용하여 통합적으로 평가하는 방식이다. 실질적으로 신뢰도, 회복도, 취약도 및 최대물부족도 등을 기초 매개변수로 댐의 용수공급 지속가능성지수를 구성하고 15개 다목적댐을 대상으로 개별 댐과 유역별로 평가하였다. 평과결과, 금강유역의 대청댐과 낙동강 유역의 임하, 합천 및 남강댐이 취약한 것으로 나타났으며, 유역은 낙동강 유역이 가장 취약하여 용수공급 안전도 향상을 위한 대응방안이 필요한 것으로 분석되었다.

Keywords

References

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