Retention cadastre — Search rooms with consideration of land use

The retention register provides an overview of potentially usable retention areas at selected Lower Saxony waters. The project is supported by the European Agricultural Fund for Rural Development. It supports the catchment-related concepts and is part of the nationwide flood prevention (area preparedness).The data contain search spaces for activable retention areas that have been interlaced with land use data in order to make them available to the relevant actors and policy makers as a basis for planning. The focus is on areas that are separated from the water by means of line structures or terrain surveys, but which are topographically suitable to be connected to the waters. The determination of the search spaces is based on the HQ100 calculations of the risk and flood zone waters.