Urban pluvial flood forecasting - rainfall data processing - experimental site in Redbridge Prof. Čedo Maksimović, Dr. Christian Onof, Li-Pen Wang Dept. Civil and Environmental Engineering, Imperial College London Visitors from University of Iowa, 28/05/2010 @ ICL
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Urban pluvial flood forecasting - rainfall data processing - experimental site in Redbridge
Urban pluvial flood forecasting - rainfall data processing - experimental site in Redbridge. Prof. Čedo Maksimović , Dr. Christian Onof, Li-Pen Wang Dept. Civil and Environmental Engineering, Imperial College London Visitors from University of Iowa, 28/05/2010 @ ICL. - PowerPoint PPT Presentation
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Urban pluvial flood forecasting- rainfall data processing- experimental site in Redbridge
Prof. Čedo Maksimović, Dr. Christian Onof, Li-Pen WangDept. Civil and Environmental Engineering, Imperial College LondonVisitors from University of Iowa, 28/05/2010 @ ICL
A more reliable flooding forecast could be implemented if a high-resolution rainfall prediction with longer lead time is carried out
TimeNow
Rainfall Depth
Observed Predicted
ResolutionLead time
Runoff Modelling
Surface Flooding Forecast / Warning
Sewer Simulation
RAINFALL DATA PROCESSING
Aim to carry out high-resolution rainfall forecasting with longer lead time
Numerical Weather Prediction: UM/MM510 km
1 km
C-Band
Meteorological Radar
X-Band1 km
100 m
Ground Raingauge Network
CALIBRATION
T = Future
T = Current i
t
NOWCASTING
1 kmSTATISTICALLYDOWNSCALING
i i
tTemporal
Spatial
Possible improvements in Nowcasting, Calibration & Downscaling
• Information based upon NWP outputs– Advection of rainfields– Larger-scale weather variations
• Enhanced radar observations– X-Band radar and ground raingauge data– Super-resolution techniques to improve the spatial