4f4c4942-4343-5764-6473-313136383134 eng dataset Natural Resources Wales (NRW) 0300 065 3000 Maes-y-Ffynnon LL57 2DW enquiries@naturalresourceswales.gov.uk pointOfContact 2018-05-23 Gemini 2.2 urn:ogc:def:crs:EPSG::OSGB36 OGP LIDAR terrain and surfaces models Wales AfA050 1m LIDAR DTM and DSM AfA047 25cm LIDAR DTM and DSM AfA051 2m LIDAR DTM and DSM AfA049 50cm LIDAR DTM and DSM Modelau tir ac arwynebau LIDAR Cymru 2017-01-11 publication 116814 https://naturalresources.wales This dataset shows the extent of data in each individual tile that went into the merging process to create the LIDAR Composite DSM & DTM. Light Detection and Ranging (LIDAR) is an airborne mapping technique, which uses a laser to measure the distance between the aircraft and the ground. Up to 100,000 measurements per second are made of the ground, allowing highly detailed terrain models to be generated at spatial resolutions of between 25cm and 2 metres. The Natural Resources Wales composite dataset contains digital elevation data derived from surveys carried out over several years and covers approximately 70% of Wales. We are making available 25cm, 50cm, 1m and 2m datasets, supplied as terrain models (a representation of the ground level) or surface models (a representation of o bject heights such as vehicles, buildings and vegetation). In addition to the height information, georeferenced, coloured, shaded relief images at the same resolution as the input LiDAR data grids are available. Natural Resources Wales (NRW) 0300 065 3000 Maes-y-Ffynnon LL57 2DW enquiries@naturalresourceswales.gov.uk owner Natural Resources Wales (NRW) 0300 065 3000 Maes-y-Ffynnon LL57 2DW enquiries@naturalresourceswales.gov.uk originator Natural Resources Wales (NRW) 0300 065 3000 Maes-y-Ffynnon LL57 2DW enquiries@naturalresourceswales.gov.uk custodian annually Geographic Information System Land cover GEMET - INSPIRE themes, version 1.0 2022-03-15 publication © CNC/NRW Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and NRW's copyright. It is the recipient's responsibility to ensure the data is fit for the intended purpose. Attribution statement: Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved. otherRestrictions There are no access restrictions on this data. NRW may release, publish or disseminate it freely. eng environment ISO3166 Countries 2022-03-15 publication Wales (WLS) -5.77774100 -2.60886500 51.24082900 53.51306700 2015-01-01 2015-12-31 Natural Resources Wales (NRW) 0300 065 3000 Maes-y-Ffynnon LL57 2DW enquiries@naturalresourceswales.gov.uk distributor http://lle.gov.wales/services/tiles/lidar/wmts? Web Mapping Service http://lle.gov.wales/catalogue/item/LidarCompositeDataset/?lang=en Download Data and Web Services dataset This dataset shows the extent of data in each individual tile that went into the merging process to create the LIDAR Composite DSM & DTM. This dataset refers to the most recent LiDAR surveys, previous LiDAR survey data can be obtained from the "Historic LIDAR Archive" dataset catalogue.