Identification

Title

LIDAR terrain and surfaces models Wales

Alternative title(s)

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

Abstract

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.

Resource type

dataset

Resource locator

http://lle.gov.wales/services/tiles/lidar/wmts?

name: Web Mapping Service

http://lle.gov.wales/catalogue/item/LidarCompositeDataset/?lang=en

name: Download Data and Web Services

Unique resource identifier

code

116814

codeSpace

https://naturalresources.wales

Dataset language

eng

Spatial reference system

authority code

OGP

code identifying the spatial reference system

urn:ogc:def:crs:EPSG::OSGB36

Classification of spatial data and services

Topic category

environment

Keywords

Keyword set

keyword value

Land cover

originating controlled vocabulary

title

reference date

date type

publication

effective date

2022-03-15

Geographic location

West bounding longitude

-5.77774100

East bounding longitude

-2.60886500

North bounding latitude

53.51306700

South bounding latitude

51.24082900

Extent

Extent group

authority code

title

reference date

date type

publication

effective date

2022-03-15

code identifying the extent

Wales (WLS)

Temporal reference

Temporal extent

Begin position

2015-01-01

End position

2015-12-31

Dataset reference date

date type

publication

effective date

2017-01-11

Frequency of update

annually

Quality and validity

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.

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

© 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.

Constraint set

Limitations on public access

There are no access restrictions on this data. NRW may release, publish or disseminate it freely.

Responsible organisations

Responsible party

organisation name

Natural Resources Wales (NRW)

telephone number

0300 065 3000

email address

enquiries@naturalresourceswales.gov.uk

responsible party role

owner

Responsible party

organisation name

Natural Resources Wales (NRW)

telephone number

0300 065 3000

email address

enquiries@naturalresourceswales.gov.uk

responsible party role

originator

Responsible party

organisation name

Natural Resources Wales (NRW)

telephone number

0300 065 3000

email address

enquiries@naturalresourceswales.gov.uk

responsible party role

custodian

Metadata on metadata

Metadata point of contact

organisation name

Natural Resources Wales (NRW)

telephone number

0300 065 3000

email address

enquiries@naturalresourceswales.gov.uk

responsible party role

pointOfContact

Metadata date

2018-05-23

Metadata language