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Water Practice & Technology © IWA Publishing 2007 |
doi10.2166/wpt.2007.042
Aspects of Radar Rainfall Forecasts and their Effectiveness for Real Time Control -The Example of the Sewer System of the City of Vienna
Stefan Krämer1, Lothar Fuchs2, Hans-Reinhard Verworn1
1Institute of Water Resources Management, Hydrology and Agricultural Hydraulic Engineering, University of Hanover, Appelstr. 9a, 30167 Hanover, Germany
2Institute for Technical Scientific Hydrology, Engelbosteler Damm 22, 30167 Hanover, Germany
ABSTRACT
This paper describes the application of a radar rainfall forecast model in combination with a hydrodynamic runoff model to predict flows is a sewer system. The results for three events of different type of rainfall are assessed on both the rainfall side and the runoff side with respect to their effectiveness for real time control. A quantification of the forecast error depending on the lead time is done using an error component analysis based on the mean squared error of the areal catchment rainfall. The benefit of flow forecasting is clearly demonstrated.
Keywords: Error component analysis, performance assessment, radar rainfall forecast, runoff prediction
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