LIDAR terrain and surfaces models 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 object 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.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS116814
- Alternative Title
-
- Modelau tir ac arwynebau LIDAR Cymru
- AfA049 50cm LIDAR DTM and DSM
- AfA051 2m LIDAR DTM and DSM
- AfA047 25cm LIDAR DTM and DSM
- AfA050 1m LIDAR DTM and DSM
- Metadata Language
- English
- Lineage
-
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."
- Dataset Reference Date (Publication)
- 2017-01-01
Extent
Extent
- Geographic Extent
- Wales (WLS)
))
Distribution
Distribution
- Format Type and Description
-
-
Geographic Information System
()
- Specification
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Esri GIS Format
-
Geographic Information System
()
- Resource Locator
-
Web Mapping Service
World Wide Web page
- Resource Locator
-
Download Data and Web Services
World Wide Web page
Quality
Data quality
- Quality Scope
- Dataset
- Lineage
-
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."
Keywords
Keywords
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
Spatial Reference System
Content
Content Information
NRW Profile
Custom Elements
Constraints
Constraints
Limitations on Public Access and Use
- Restriction type
- Other restrictions
Access Constraints Directive
- Limitations
- no limitations
Access Constraints Text
- Other constraints
-
There are no access restrictions on this data. NRW may release, publish or disseminate it freely.
Use Constraints
- Use constraints type
- Other restrictions
- Other constraints
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© 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.
Metadata
Metadata
- File Identifier
- 4f4c4942-4343-5764-6473-313136383134 XML
- Metadata Language
- English
- Resource type
- Dataset
- Metadata Date
- 2024-05-30T15:35:57.865Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
-
1.0