Laurent, Dambreak analysis is very complex, requiring a lot of in-channel cross-section or bathymetric data and over-bank DEM data, as well as the use of an unsteady hydraulic flow model such as the U.S. Army Corps of Engineers, HEC-RAS model, which has this capability.
However, there are simplified techniques that can approximate detailed analyses, such as: http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&ved=0CCUQFjAA&url=http%3A%2F%2Fwww.hsdl.org%2F%3Fview%26did%3D8227&ei=rV-JUJGSGYjO0QHEw4BI&usg=AFQjCNHIGNVpLU5UZZ9ZuTfhi-tySFIs8w http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CCUQFjAA&url=http%3A%2F%2Famazon.nws.noaa.gov%2Farticles%2FHRL_Pubs_PDF_May12_2009%2FSeann_Reed%2FValidation_of_GeoSMPDBK_2011_07_22_submit_r2.pdf&ei=BWGJUNODNY6u0AHGlIDICQ&usg=AFQjCNGa3OsBOBVnYlWPKqsOgnBQKKN5Wg Regards, Tom On Thu, Oct 25, 2012 at 10:33 AM, laurent celati < [email protected]> wrote: > Good afternoon, > > I have to simulate an artificial dam failure & mapping of flood risk > downstream. I have already generate watershed file thanks to r.watershed. > > Now i want to mapping and calculate flood risk downstream (water level / > volume /cubature) from a few available informations like charge,flow,etc. > > Could you throw light for me please? If you know other tools and algorithms > that can help me in my study, don't hesitate. > > Thank you in advance. > > With kind regards. > > > > > -- > View this message in context: > http://osgeo-org.1560.n6.nabble.com/Dam-Failure-mapping-of-flood-risk-downstream-tp5011263.html > Sent from the Grass - Users mailing list archive at Nabble.com. > _______________________________________________ > grass-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/grass-user > -- Thomas E Adams National Weather Service Ohio River Forecast Center 1901 South State Route 134 Wilmington, OH 45177 EMAIL: [email protected] VOICE: 937-383-0528 FAX: 937-383-0033
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