This is followed by Regional Coordinators, each round upgrading Regional DTMs, and each supported by a regional group of data providers. Survey data and Composite DTMs are pre-gridded and pre-processed to the required EMODnet grid, resolution and format by data providers, using the standard GLOBE software. Moreover, an effective production workflow has been designed and deployed in accordance with international standards for generation and distribution of the EMODnet Digital Terrain Model (DTM) for all European sea regions and for referencing its input data sets. They bring together bathymetric data sets from in-situ surveys, composite DTMs, and Satellite Derived Bathymetry products, which are managed and described in INSPIRE compliant catalogue services, such as the SeaDataNet CDI data discovery and access service for survey data sets and the SeaDataNet Sextant catalogue for composite DTMs. They combine expertises and experiences of collecting, processing, and managing of bathymetric data together with expertises in distributed data infrastructure development and operation and providing OGC services (WMS, WFS, and WCS) for viewing and distribution. ApproachĮMODnet Bathymetry is undertaken by a gradually expanding consortium of organisations from marine science, governmental departments, national hydrographic services, and industry. This DTM is updated every 2 years and made available in the EMODnet Mapviewer, by OGC web services, and by downloading in multiple formats for use in GIS systems and as baselayer for numerical hydraulic models. Its flagship data product is the harmonised Digital Terrain Model (DTM) for all European sea regions with a common grid resolution which is generated and regularly updated on the basis of an increasing collection of bathymetric data sets, gathered from organisations from government, research institutes, and industry. EMODnet Bathymetry aims to provide a single access point to bathymetric data (survey data sets and composite DTMs), and derived bathymetric data products such as best-estimate European digital coastlines, inventory of official coastlines and baselines, a series of high-resolution DTMs for selected areas, and the EMODnet Bathymetry World Base Layer OGC web service.
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