Journal of Korean Society for Geospatial Information Science (대한공간정보학회지)

Korea Spatial Information Society (대한공간정보학회)
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Estimation of Reservoir Area and Capacity Curve Equation using UAV Photogrammetry

무인항공기 사진측량에 의한 저수면적과 저수량 곡선식 산정

  • Lee, Geun Sang (Department of Cadastre and Civil Engineering, Vision College of Jeonju) ;
  • Choi, Yun Woong (Department of Civil Construction Engineering, Chosun College of Science and Technology) ;
  • Lee, Suk Bae (Department of Civil Engineering, Gyeongnam National University of Science and Technology) ;
  • Kim, Seok Gu (Geospatial Information CO.Ltd.)
  • 이근상 (전주비전대학교 지적토목학과) ;
  • 최연웅 (조선이공대학교 토목건설과) ;
  • 이석배 (경남과학기술대학교 토목공학과) ;
  • 김석구 ((주)공간정보)
  • Received : 2016.08.29
  • Accepted : 2016.09.19
  • Published : 2016.09.30
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Abstract

Reservoir area and reservoir capacity must be evaluated for reservoir management such a water supply, water-purity control and so on. In this paper, the reservoir area and reservoir capacity according to the level of storage range of water(149~156 El.m) could be calculated by using TIN data model of study area, Gyoyeon reservoir, TIN data model was made of DSM which was created by using UAV and GCP survey. From the results of applying the various functions to reservoir area and capacity, reservoir area and reservoir capacity according to the level of storage range of water showed the highest coefficient of determination of 0.97 in fourth-order polynomial, and 0.99 in second-order polynomial, respectively. Thus, it could be expected the efficient reservoir management by estimating reservoir area and capacity curve equation through UAV photogrammetry.

용수공급이나 수질관리 등과 같은 저수지 운영을 위해서는 최신의 수위별 저수면적과 저수량을 평가해야 한다. 본 연구에서는 괴연저수지를 대상으로 UAV 촬영 및 GCP 측량을 통해 정사영상과 DSM 자료를 구축하였으며, 저수지 영역에 대한 TIN 데이터모델을 구축함으로써 실제 저수구간인 149~156 EL.m에 대한 수위별 저수면적과 저수량을 계산할 수 있었다. 또한 수위별 저수면적과 저수량 자료에 대해 다양한 함수식을 적용한 결과, 수위별 저수면적은 4차 다항식을 적용한 곡선식의 결정계수가 0.97로 가장 높게 나타났으며 수위별 저수량은 2차 다항식을 적용한 곡선식의 결정계수가 0.99로 가장 높게 나타남을 알 수 있었다. 이와 같이 UAV 사진측량을 통해 저수면적과 저수량 곡선식을 산정함으로서 효율적인 저수지 관리가 가능할 것으로 판단된다.

Keywords

References

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