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3 rd IMPACT WORKSHOP Brembo-Adda test case Fabrizio Savi, University of Rome “La Sapienza”

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Presentation on theme: "3 rd IMPACT WORKSHOP Brembo-Adda test case Fabrizio Savi, University of Rome “La Sapienza”"— Presentation transcript:

1 3 rd IMPACT WORKSHOP Brembo-Adda test case Fabrizio Savi, University of Rome “La Sapienza”

2 On November due to heavy rainfalls in Alpine Region (Northern Italy) a significant flood propagated along Adda river and inundated a wide portion of the riverside and the city of Lodi

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4 Description of the hydrographic network L=131 km L=50 km L=98 km

5 Stream gauging stations

6 For each gauging station  Semi-hourly water stages hydrographs  Rating curve are available

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8 Maximum water levels during flood were also measured in 117 points

9 Flooded areas by Adda river were also contoured

10 Land surveys

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20 The values of the Manning roughness coefficient can be estimated on the basis:  maps of the soil use in the floodplain  mean particle size of the river bed material  photographs of revetments

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24 Conclusions Input data:  Discharge hydrographs at the upstream sections of hydrographic network (XLS format)  Stages hydrograph at the downstream section of hydrographic network (XLS format)  Cross sections (including Manning roughness coefficient) (XLS-ASCII format)  DTM of the valleys (DWG format) Data to verify the model:  Stages hydrograph at intermediate section (XLS)  Maximum observed water stages along the water courses (XLS format)  Extension of the inundated areas (along Adda river) (DWG format)

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