Venetian Lagoon mesh for SHYFEM: VenlagBio_20 and VenlagBio_20_shelf

This dataset contains two high-resolution finite element meshes of the Venice lagoon developed for the SHYFEM hydrodynamical model. The grids rely on bathymetric surveys produced by the CORILA consortium in 2003 in the most shallow areas and 2013 bathymetric data of Madricardo et al. in the navigable channels. While “VenlagBio_20” is limited to the inner basin of the Venice lagoon,  “VenlagBio_20_shelf'' includes an additional open-sea area. "VenlagBio_20" is formed by 6017 nodes and 10407 elements, while “VenlagBio_20_shelf'' contains 6688 nodes and 11525 elements. The depth of the meshes is relative to the IGM zero of 1942 (the actual italian-national reference depth level). The coordinates are defined in meters using the Gauss-Boaga projection EPSG:3004 (Monte Mario / Italy zone 2). These meshes were developed in the context of the VENEZIA2021 research program.