Comparison and Analysis of Publicly Available Bathymetry Models in the East Adriatic Sea

In this paper the latest versions of six publicly available bathymetry models: DTU10bat, EMODnet 2018, ETOPO1, GEBCO 2020, Smith and Sandwell V20.1 SRTM15+ V.2.1. are compared evaluated in area continental shelf Croatia settled along well intended east Adriatic coast. Survey data is not through open access bases, but accessible agreement with holders (hydrographic institute, research centres industry). These grids provide alternative sources information about seafloor topography. Marine researchers should be acquainted main characteristics as pros cons models order to choose best one for a specific purpose. most important presented: resolution, coverage, release date, horizontal vertical datum, source, registration method, producer link website an emphasis on underlying source data. The parameters that determine quality bathymetric model. Hypsometry curve describing distribution depth calculated each model over test Adriatic. For pixel comparison, were resampled same one-minute resolution absolute differences between identical points. Absolute show level mutual compatibility areas highest disagreements indicate presence outliers or systematic errors within models. demonstrate how fit true topography sea floor, high-resolution digital interpolated from multibeam survey Murter Sea. This assist choice suited grid future maritime studies