ABSTRACT
The time dependent two dimensional shallow water equations are currently accepted as the mathematical basis for the study of rapidly varying wave propagation phenomena such as dam-break flows or levee breakings. For this reason, in the recent years, the efforts of many researchers in the field of hydroinformatics were devoted to the integration of the shallow water equations by means of different kinds of numerical techniques; among these the finite volume approach appear nowadays to be of dominant interest (Toro 1997, Toro 2001, LeVeque 2002).
