Hi Diego, I answer also to your question of yesterday about damflood.
- r.inund.fluv use a quasi-2D approach, but is not an hydrodynamic model. It is only a way to export result of a 1D hydrodynamic model on an high resolution DEM in order to obtain flooding map. - r.damflood use a 2D approach even if we have only performed test with dambreak initial condition and with a landslide generated tsunami. If you go on the addon page ( http://grasswiki.osgeo.org/wiki/AddOns/GRASS7/raster#r.damflood) you find the SWE.c library that solve the shallow water equations in GRASS using a finite volume method as detailed described in Cannata M. & Marzocchi R. (2012). Two-dimensional dam break flooding simulation: a GIS embedded approach. - Natural Hazards 61(3):1143-1159 Finally r.dam is only a grass script which take advantage of r.lake in order to create a reservoir that is one of the needed inputs of r.damflood command. I hope to answer to your questions...for further doubts do not hesitate to contact me. Best regards, Roberto -- Eng. Roberto Marzocchi, PhD R&D coordinator Gter srl Innovazione in Geomatica, Gnss e Gis Spin-off Progetto Uni.T.I. promosso da UniGE Via Greto di Cornigliano 6r - 16152 Genova P.IVA/CF 01998770992 ph: 010-8694830 Fax: 010-8694737 mob: 349-8786575 E-mail: [email protected] skype: roberto.marzocchi84www.gter.itwww.twitter.com/Gteronline - www.facebook.com/Gteronline 2013/10/24 Diego Mérida López <[email protected]> > Hi to all, Actually I'm working in my final degree project, the project on > which I work wants to make a comparison study between a study of waterflow > hazard in a unidimensional and bi-dimensional models. > > Can GRASS work in bi-dimensional algorithms (for example r.dam)? > > I know that r.inund.fluv works in unidimensional (like Hec-RASS), but i > don't know if GRASS have algorithms to work in bi-dimensional to calculate > plains inundation. > > Thanks to all. > > > > -- > View this message in context: > http://osgeo-org.1560.x6.nabble.com/Question-about-unidimensional-and-bidimensional-waterflow-analysis-tp5085555.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 >
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