Coastal modelling with a GIS bathymetric moduleCoastal modelling with a GIS bathymetric module Peer-Reviewed Journal Publication Δημοσίευση σε Περιοδικό με Κριτές 2015-10-092002enA 3D hydrodynamic/pollutant transport model was used to simulate the currents and pollutant trans- port in coastal areas. The bathymetric and shoreline data was provided to the model via a GIS module that operates in the ArcView GIS environment. The module is efficient and capable of generating bathymetric rectangular grids and shorelines of different resolution for open and closed boundary sce- narios that can automatically be read by the coastal model. This ability could improve the basic patterns and relationships of the model such as grid dependency. The functionality of the 3D model with the GIS module is illustrated in a number of coastal areas in Greece.http://creativecommons.org/licenses/by/4.0/International Journal of Global Nest14151-74 Tsanis Giannis Τσανης Γιαννης Fullarton, Marianne, -1838 S. Naoum Hydrodynamic