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2021 Vol.54, Issue 6 Preview Page

Research Article

Establishment of flood forecasting and warning system in the un-gauged small and medium watershed through ODA

ODA사업을 통한 미계측 중소하천 유역 홍수예경보시스템 구축

Deuk-Koo Koha*
,
Chihun Leeb
,
Jeibok Jeonc
,
Sukhyon God
고 덕구a*
,
이 치헌b
,
전 제복c
,
고 석현d
aVice President, Dongbu Engineering, Seoul, Korea
bSenior Research Officer, National Disaster Management Research Institute, Ulsan, Korea
cDirector, Water Resources and Environment Department, Dongbu Engineering, Seoul, Korea
dGeneral Manager, Water Resources and Environment Department, Dongbu Engineering, Seoul, Korea
a동부엔지니어링 부사장
b국립재난안전연구원 시설연구관
c동부엔지니어링 수자원환경부 이사
d동부엔지니어링 수자원환경부 부장
*Corresponding Author
30 June 2021. pp. 381-393
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Abstract

As part of the National Disaster Management Research Institute’s Official Development Assistance (ODA) projects for transferring new technologies in the field of disaster-safety management, a flood forecasting and warning system was established in 2019 targeting the Borikhan in the Namxan River Basin in Bolikhamxai Province, Laos. In the target area, which is an ungauged small and medium river basin, observation stations for real-time monitoring of rainfall and runoff and alarm stations were installed, and a software that performs real-time data management and flood forecasting and warning functions was also developed. In order to establish a flood warning standard and develop a nomograph for flood prediction, hydraulic and hydrological analysis was performed based on the 30-year annual maximum daily rainfall data and river morphology survey results in the target area. This paper introduces the process and methodology used in this study, and presents the results of the system's applicability review based on the data observed and collected in 2020 after system installation.

Keywords
ODA
Small and medium river basin flood forecasting and warning system
Rainfall-flow-water level nomograph
Flood warning standard
Rainfall based automatic warning system
Laos Namxan river

국립재난안전연구원의 재난안전 신기술 공적개발원조(ODA) 사업의 일환으로 2019년 라오스 볼리캄싸이주 남싼강유역의 보리칸을 대상으로 홍수예경보시스템을 구축하였다. 미계측 중소하천유역인 대상 지역에 강우량와 유출량의 실시간 관측을 위한 관측소 및 경보국을 설치하였으며, 실시간 자료 관리와 홍수예경보 기능 등을 수행하는 소프트웨어도 개발되었다. 홍수경보 기준 설정 및 홍수예측을 위한 nomograph 개발을 위해 대상 지역의 30년 치 연도별 최대 일강우량자료와 하천측량성과를 바탕으로 수리·수문분석을 수행하였다. 본 논문은 시스템 구축 과정과 방법론을 소개하고, 시스템 설치 후 2020년 실시간 관측 수집된 자료들을 바탕으로 수행한 시스템의 적용성 검토 결과를 제시하였다.

키워드
ODA
중소하천유역 홍수예경보시스템
강우-유량-수위 nomograph
홍수경보 기준
자동우량경보시스템
라오스 남싼강
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Information
  • Publisher :KOREA WATER RESOURECES ASSOCIATION
  • Publisher(Ko) :한국수자원학회
  • Journal Title :Journal of Korea Water Resources Association
  • Journal Title(Ko) :한국수자원학회 논문집
  • Volume : 54
  • No :6
  • Pages :381-393
  • Received Date : 2021-04-09
  • Revised Date : 2021-04-29
  • Accepted Date : 2021-04-29
  • DOI :https://doi.org/10.3741/JKWRA.2021.54.6.381
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