WFD Management Catchment Cycle 1

The 'WFD Management Catchments Cycle 1' dataset is a polygon Shapefile defined for the implementation of the Water Framework Directive. Management catchments are the unit of geography for which action plans are drafted in implementing the first cycle of the WFD. In Cycle 2 there are three new Management Catchment datasets; WFD Surface Water Management Catchments Cycle 2, WFD Artificial Water Management Catchments Cycle 2 and WFD Groundwater Management Catchments Cycle 2. WFD Management Catchments Cycle 1 have been delineated by using WFD River Water body Catchments Cycle 1 [these were delineated through use of the CEH Flow Grid hydrological model run with CEH Integrated Hydrological Digital Terrain Model (IHDTM) data and from a 50m resolution CEH flow grid] as “building blocks” that have been aggregated together within a GIS, ensuring that WFD rivers do not intersect boundaries. This process was conducted by using expert judgement in consultation. This dataset was previously known as WFD Management Catchments Please note that the Environment Agency no longer provide data for water bodies in Wales - this should now available from Natural Resources Wales.