Digital Elevation Model (DEM) data for the Conwy estuary, Wales
type: Dataset
description: The Digital Elevation Model (DEM) domain includes the tidally influenced Conwy estuary, downstream of the Cwmlanerch river gauge on the River Conwy and extending offshore into Conwy Bay and the Menai Strait at the coastal boundary. A number of sources were combined to generate the land elevation data, including (a) seabed bathymetry, (b) land elevations and (c) location and heights of existing flood defences. The domain topography was based on the marine DEM, Lidar Digital Terrain Model (DTM) and Ordnance Survey Terrain 5m DTM. The Lidar DTM data was used to check and, where necessary, augment the flood defences vector database. Full details about this dataset can be found at https://doi.org/10.5285/7217e6c0-46c7-4f87-bc36-589f884d3b02
keyword: Digital Elevation Model
keyword: Elevation
issued: 2024-05-13T14:12:40.351591
modified: 2026-07-30T22:21:35.098287
spatial: Location
  geometry: {"type": "Polygon", "coordinates": [[[-3.676, 53.089], [-3.949, 53.089], [-3.949, 53.353], [-3.676, 53.353], [-3.676, 53.089]]]}

Environmental Information Data Centre
type: Organization

Download the data
type: Distribution
description: Download a copy of this data
access URL: https://data-package.ceh.ac.uk/data/7217e6c0-46c7-4f87-bc36-589f884d3b02
issued: 2026-07-30T22:21:35.131963
modified: 2026-07-30T22:21:35.104148

Supporting information
type: Distribution
description: Supporting information available to assist in re-use of this dataset
media type: application/zip
format: ZIP
access URL: https://data-package.ceh.ac.uk/sd/7217e6c0-46c7-4f87-bc36-589f884d3b02.zip
issued: 2026-07-30T22:21:35.131965
modified: 2026-07-30T22:21:35.104217