Introduction ■ Director's Discourse ■ Mapping the Seafloor ■ Harnessing Our Ocean Wealth ■ Irish Maritime Festival ■ Landslide Susceptibility Mapping ■ New Geology Map of Ireland ■ EMODNET Hydrography ■ Collaboration with Irish Universities ■ Geoscience Ireland
EMODNET Hydrography 2 - Producing high resolution digital bathymetry for European sea basins
Grainne O'Shea, GSI Marine Section
EMODNET Hydrography 1 (2010 - 2012) aimed to make inaccessible marine data publicly available, interoperable, and continuous across Europe. A pilot portal was developed which provides a Discovery and Data Access service. A 463m gridded digital terrain model (DTM) was created and both the data and metadata can be downloaded from the portal.
The EMODNET Hydrography portal, including GSI’s seabed mapping data at
EMODNET Hydrography 2 (2013 - 2015) objectives are to extend the geographical coverage to include the Baltic Sea, the Black Sea, the Norwegian - Icelandic Seas and the Canary Islands (as part of Macaronesia). In addition all partners from EMODNET 1 will incorporate any new surveys collected since 2012. EMODNET 1 had nine countries participating and this has extended to eighteen countries including 32 Partners and 6 Associate Partners.
Areas into which coverage will be expanded in next phase of EMODNET Hydrography project, in red circles.
Another objective is to create a higher resolution DTM of 231m. All partners will use Globe software to produce the DTMS. In addition the GSI is one of three countries involved in creating a pilot higher resolution coastal DTM (10-15m). The coastal DTM will extend up to at least the Highest Astronomical Tide (HAT) and out to 12nm (nautical miles) offshore. The GSI has chosen Bantry & Dunmanus for the pilot which will merge five offshore multibeam bathymetry surveys, produced from 3 different ships and two bathymetric LIDAR datasets.