| Title |
A Research on Application of Flood Simulation at Ungaged Basin for Water Management in the Ara River |
| Authors |
이상진(Lee, Sang Jin) ; 노준우(Noh, Joon Woo) ; 김주철(Kim, Joo Cheol) |
| DOI |
https://doi.org/10.12652/Ksce.2012.32.3B.169 |
| Keywords |
미계측유역;굴포천;아라천;홍수모의;수위-유량 관계 ungaged basin;gulpo river;ara river;flood simulation;stage-discharge curve |
| Abstract |
For efficient water management in the Ara River during the flood season, applicability of flood simulation model in the ungaged Gulpo watershed has been tested. In the Gulpo River watershed, fundamental hydrologic data such as water level and flowrates are very limited and selection of the reliable hydrologic parameters are very important for model application. This study tested reliability of parameters estimated using the empirical equation based on the HEC-HMS runoff simulation. Also coupled with HEC-RAS hydraulic routing model, simulated flowrates from HEC-HMS has been compared with the observed water levels collected at the upstream and downstream of the Gyulhyun Weir station during the flood event in 2010. Based on this information, stage-discharge curve has been developed and its reliability has been tested for flood event in 2011. |