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A study on the estimation of the downstream arrival time with the upstream flow by utilizing u-IT equipments

u-IT 장비를 활용한 상류 유하량에 따른 하류지점 도달시간 예측에 관한 연구

  • Received : 2011.05.31
  • Accepted : 2011.08.11
  • Published : 2011.08.31

Abstract

The purpose of this study is complementing existing flood-reaching timetable by theoretically determined numerical model and suggesting techniques for calculating the exact arrival time of flood. For this, according to the discharge of Namhan River, arrival time measurements, using u-IT technology applied sensor buoys, were performed. Based on the results of measurements, this study proposed complementary relation of average reach time by the discharged water considering tributary inflow, which was not considered established expression. With this study, u-IT based actual technology that is complementing the existing flood forcasting-warning data was developed. Applying this technology to the average reach time calculation by the discharged water, it is expected to reduce flood-oriented damage.

본 연구의 목적은 수치모형에 의해 이론적으로 산출된 기존 홍수도달 시간표를 보완하여 정확한 홍수도달시간을 예측, 산정하기 위한 기술을 연구하고 제시하는데 있다. 이를 위해 u-IT 기술을 적용한 센서 부자를 이용하여 남한강 하천의 유출량에 따른 도달시간 측정을 시행하였으며, 계측 결과를 토대로 현재 활용하고 있는 산출식에서 고려하지 않았던 지류의 유입량을 고려한 유출량별 평균도달시간 관계식을 보완, 제시하였다. 본 연구를 통해 기존 홍수예경보 자료를 보완할 수 있는 u-IT 기반 실측기술을 개발하고, 이를 유출량-평균도달시간 산정에 적용할 수 있는 기반을 구축함으로써 홍수피해 절감 등의 효과를 기대할 수 있을 것으로 판단된다.

Keywords

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