Journal of Wetlands Research (한국습지학회지)

Korean Wetlands Society (한국습지학회)
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A Study on Optimal Stage Gauge Network Considering Correlation of Individual Stage Gauge Station

관측소간의 상관관계를 고려한 수위관측망 최적화 연구

  • Joo, Hong jun (Department of Civil Engineering, Inha University) ;
  • Kim, Duck hwan (Department of Civil Engineering, Inha University) ;
  • Kim, Jung wook (Department of Civil Engineering, Inha University) ;
  • Choi, Chang hyun (Department of Civil Engineering, Inha University) ;
  • Han, Dae gun (Department of Civil Engineering, Inha University) ;
  • Lee, Ji ho (Department of Civil Engineering, Seoul National University of Science and Technology) ;
  • Kim, Hung soo (Department of Civil Engineering, Inha University)
  • 주홍준 (인하대학교 사회인프라공학과) ;
  • 김덕환 (인하대학교 사회인프라공학과) ;
  • 김정욱 (인하대학교 사회인프라공학과) ;
  • 최창현 (인하대학교 사회인프라공학과) ;
  • 한대건 (인하대학교 사회인프라공학과) ;
  • 이지호 (서울과학기술대학교 건설시스템공학과) ;
  • 김형수 (인하대학교 사회인프라공학과)
  • Received : 2016.08.03
  • Accepted : 2016.11.02
  • Published : 2016.11.30
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Abstract

This paper not only aims to establish a plan to acquire the water stage data in a constant and proper manner by using limited manpower and costs, but also establishes the fundamental technology for acquiring the water level observation data or the stage data. For this, this paper focuses on how to acquire the stage data, in a uniform manner, that can represent each basin by developing the technology for establishing the optimal observational network. For that, this paper identifies the current status of the stage gauge stations installed in the ChungJu dam including wetland basin mainly along the national rivers. Then, thus obtained factors are used to develop the representative unit hydrograph. After that, the data are converted into the probability density function. Then, the stations are calculated information transfer amount. As a last step, we establish the optimized stage gauge network by the location of the stage station and space impact that takes into account for the combinations of the number of the stations. In other words, we consider the combination of the stage gauge station with information transfer amount and spatial correlation analysis for estimation.

본 연구는 제한된 인력과 비용을 활용하여 습지 지대에서의 일관되고 적절한 수위자료를 획득하기 위한 방안 수립을 목표로 하였다. 이를 위해 기존의 수위관측소 설치 기준에 입각한 상 하류간의 유기적인 상관관계를 파악하여 관측소간의 최적의 수위관측망의 선정 기술을 개발함으로서 유역을 대표할 수 있는 일관된 수위자료 획득에 중점을 두었다. 우선 기존에 습지 유역을 포함한 충주댐 유역을 대상으로 하천을 중심으로 설치되어 있는 수위관측소 현황을 파악한 후, 유출 특성을 나타내는 대표단위도를 산정한 후 확률밀도함수로 변환하였으며, 대상 유역내에서 엔트로피 이론에 의한 정보 전달량을 산정하였다. 마지막으로 각 관측소 간의 공간적인 상관관계를 분석하고, 정보 전달량과 각 관측소의 상관관계를 고려해 수위관측망을 최적화하였다. 즉, 정보 전달량으로 수위관측소의 개수에 따른 조합을 고려하되, 수위관측소간의 상관분석을 적용하여 수위관측소 설치위치와 개수에 대하여 최적화된 수위관측망을 제시할 수 있었다.

Keywords

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