11 feature types covering rivers, lakes, tidal boundaries, 3D water networks with flow direction.
8 topographic feature types including polygons, points, and tidal boundaries.
Link-node representation with flow direction and vertical connectivity.
Boundaries aligned to Environment Agency and NRW jurisdictions.
8 topographic feature types including polygons, points, and tidal boundaries.
Link-node representation with flow direction and vertical connectivity.
Boundaries aligned to Environment Agency and NRW jurisdictions.
Mean high and low water marks for coastal planning.