| Title |
Analysis of Regional-Scale Weather Model Applicabilities for the Enforcement of Flood Risk Reduction |
| Authors |
정용(Jung, Yong) ; 백종진(Baek, JongJin) ; 최민하(Choi, Minha) |
| DOI |
https://doi.org/10.12652/Ksce.2012.32.5B.267 |
| Keywords |
홍수피해 감축;지역규모 기후모델;강우 예측량 산정;중소규모 유역 flood mitigation;regional-scale weather model;precipitation estimation;mid-size watershed |
| Abstract |
To reduce the flood risk caused by unexpected heavy rainfall, many prediction methods for flood have been developed. A major constituent of flood prediction is an accurate rainfall estimation which is an input of hydrologic models. In this study, a regional-scale weather model which can provide relatively longer lead time for flood mitigation compared to the Nowcasting based on radar system will be introduced and applied to the Chongmi river basin located in central part of South Korea. The duration of application of a regional weather model is from July 11 to July 23 in 2006. The estimated rainfall amounts were compared with observations from rain gauges (Sangkeuk, Samjook, and Sulsung). For this rainfall event at Chongmi river basin, Thomson and Kain-Frisch Schemes for microphysics and cumulus parameterization, respectively, were selected as optimal physical conditions to present rainfall fall amount in terms of Mean Absolute Relative Errors (MARE>0.45). |