The conceptual model of STAV-2D is based on the shallow-water equations, featuring dynamic bed geometries and sediment transport. Morphological changes are modeled with a conservation equation of bed material, via an imbalance between capacity bedload discharge and local solid discharge. This conceptual model is closed in terms of flow resistance, capacity bedload discharge and a specific return-to-capacity parameter by a modified closure model originally proposed by Ferreira (2009)<\/a>.<\/p>\n The discretization technique is based on the Finite Volume approach and provides fully conservative solutions to initial and boundary value problems. The model further features a consistent wetting-drying algorithm, entropy conditions to ensure shocks are effectively captured and a revised Courant condition. The discretization method allows body-fitting unstructured triangular mesh, optimizing the computational workload, using larger cells where flow gradients are expected to be mild and finer cells in specified areas where gradients are presumably\u00a0larger.<\/p>\n A Lagrangian module for the explicit tracking of large debris was recently\u00a0introduced.<\/p>\n STAV-2D is being applied to simulate tsunami scenarios on key locations of the Portuguese coast. The later include a thorough analysis of tsunami exposure\u00a0in the Tagus estuary(move link to new page)<\/strong>, in cooperation with the Civil Protection services of Lisbon, and the exposure of the Port<\/a> of Sines<\/a> (move link to new page)<\/strong>to debris induced hazards\u00a0in case of a tsunami impact. Other applications include the flash-floods at\u00a0Madeira(move link to new page)<\/strong> Island and a dam-break scenario in the Zambezi river.(move link to new page)<\/strong><\/p>\n <\/p>\nSTAV-2D outputs<\/h3>\n