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http://dx.doi.org/10.17663/JWR.2013.15.3.413

Runoff Simulation of An Urban Drainage System Using Radar Rainfall Data  

Kang, Na Rae (Department of Civil Engineering, Inha university)
Noh, Hui Seung (Department of Civil Engineering, Inha university)
Lee, Jong So (Department of Civil Engineering, Inha university)
Lim, Sang Hun (Water Resources Research Division, Korea Institute of Construction Technology)
Kim, Hung Soo (Department of Civil Engineering, Inha university)
Publication Information
Journal of Wetlands Research / v.15, no.3, 2013 , pp. 413-422 More about this Journal
Abstract
In recent, the rainfall is showing different properties in space and time but the ground rain gauge only can observe rainfall at a point. This means the ground rain gauge has the limitations in spatial and temporal resolutions to measure rainfall and so there is a need to utilize radar rainfall which can consider spatial distribution of rainfall This study tried to apply radar rainfall for runoff simulation on an urban drainage system. The study area is Guro-gu, Seoul and we divided study area into subbasins based on rain gauge network of AWS(Automatic Weather station). Then the radar rainfalls were adjusted using rainfall data of rain gauge stations the areal rainfalls were obtained. The runoffs were simulated by using XP-SWMM model in subbasins of an urban drainage system. As the results, the adjusted radar rainfalls were underestimated in the range of 60 to 95% of rain gauge rainfalls and so the simulated runoffs from the adjusted radar and gauge rainfalls also showed the differences. The runoff peak time from radar rainfall was occurred more fast than that from gauge rainfall.
Keywords
Radar rainfall; Adjusted Radar Rainfall; Urban drainage system; XP-SWMM;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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