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Development of Flood Analysis Module for the Implementation of a Web-Based Flood Management System

웹기반 홍수관리시스템 구현을 위한 홍수분석모듈개발

  • Jung, In Kyun (Research Institute, Water Management Co. Ltd.) ;
  • Park, Jong Yoon (Texas A&M AgriLife Research) ;
  • Kim, Seong Joon (Dept. of Civil & Environmental System Engineering, Konkuk University) ;
  • Jang, Cheol Hee (Water Resources Research Division, Water Resource & Environment Research Department, Korea Institute of Civil Engineering and Building Technology)
  • Received : 2014.10.22
  • Accepted : 2014.11.12
  • Published : 2014.11.30

Abstract

This study was to develop the flood analysis module (FAM) for implementation of a web-based real-time agricultural flood management system. The FAM was developed to apply for an individual watershed, including agricultural reservoir. This module calculates the flood inflow hydrograph to the reservoir using effective rainfall by NRCS-CN method and unit hydrograph calculated by Clark, SCS, and Nakayasu synthetic unit hydrograph methods, and then perform the reservoir routing by modified Puls method. It was programmed to consider the automatic reservoir operation method (AutoROM) based on flood control water level of reservoir. For a $15.7km^2$ Gyeryong watershed including $472{\times}10^4m^3$ agricultural reservoir, rainfall loss, rainfall excess, peak inflow, total inflow, maximum discharge, and maximum water level for each duration time were compared between the FAM and HEC-HMS (applied SCS and Clark unit hydrograph methods). The FAM results showed entirely consistent for all components with simulated results by HEC-HMS. It means that the applied methods to the FAM were implemented properly.

Keywords

References

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