The INtegrated Mapping FOr the Sustainable Development of Ireland's MArine Resource (INFOMAR) programme is a joint venture between the Geological Survey of Ireland (GSI) and the Marine Institute (MI). The programme is the successor to the Irish National Seabed Survey (INSS) and concentrates on creating integrated mapping products related to the seabed.
Bathymetry is the study of depth relative to sea level. It shows the variations in seabed relief as a result of changes in water depth and is the underwater equivalent to terrain or topography. Bathymetry data is primarily raster data, pixel values in the raster are a measurement of water depth.