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Abstract ▼ AI-Helper

For a period of 5 years beginning in May, 2011, the Ministry of Public Safety and Security has, by way of the "Development and Construction of a Flood Forecasting and Warning System for Medium and Small Streams" research project, undertaken research related to medium and small stream flood warning m...

For a period of 5 years beginning in May, 2011, the Ministry of Public Safety and Security has, by way of the "Development and Construction of a Flood Forecasting and Warning System for Medium and Small Streams" research project, undertaken research related to medium and small stream flood warning mentioned above as well as the creation of a flood forecasting and warning system. As a part of the project, this study has proposed the criteria for the issuance of medium and small stream flood warnings in urban areas, targeting the Jeongneung stream located in Dongdaemun-gu, Seoul. In order to establish flood warning issuance criteria, analysis was undertaken applying the "Flood Forecasting Estimation Methodology of Standard Rainfall for Urban Mid and Small Rivers considering Upper- and Down-stream Water Levels" scenario put forward by Song et al. (2014) in the case of complex warning criteria estimation methods in line with rising water levels. During the course of research, the HEC-HMS model was applied to the relationship between rainfall-outflow, while analysis of the outflow-water level relationship calculated the standard precipitation amount for the issuance of flood warning in accordance with drainage conditions by constructing the Jeongneung stream basin based on HEC-RAS. The results of calculations took into account the feasibility of criteria for the issuance of flood forecasting and warnings for streams in urban areas through a comparison of real-time water level observations in Jeongneung stream.

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