Abstract: This data shows the nodes used in the Flood Studies Update (FSU) Programme. Under the FSU research, 134,000 nodes, representing ungauged locations were placed at 500m centres along the 42,000 km of the Blueline River Network.

Purpose: The data has been developed to inform the Flood Studies Update (FSU) Programme. The FSU is a programme of research and development, undertaken by the Office of Public Works (OPW), to provide improved methods of extreme rainfall and flood estimation at both gauged and ungauged river locations in the Republic of Ireland.