GDG Wraps Up Sediment Dynamics Study in Irish Sea

Gavin & Doherty Geosolutions (GDG) has completed a sediment dynamics study in the Irish Sea, which included a two-year investigation of the geomorphology off the East coast of Ireland in order to quantify the impacts of sediment dynamics on upcoming offshore wind farm developments.

The main drivers affecting seabed mobility are the metocean conditions, the geological/geotechnical properties and the seabed topography including any local obstructions such as shipwrecks or wind farm foundations, GDG explained.

There is a significant amount of bathymetric and subsurface data publicly available through the INFOMAR data gathering programme, which can be processed to assist in developing site specific models of the subsurface conditions, the company said.

As part of the study, GDG undertook a preliminary assessment of shipwreck scour signatures in order to highlight complex local variations in bed flow regime across the study area that is not captured by simple tidal models previously produced for this location.

The sediment dynamics study was funded by the Geological Survey of Ireland under their research and development programme.