LIDAR Composite DTM 2020 - 2m
The LIDAR Composite DTM (Digital Terrain Model) is a raster elevation model covering >93% of England at 2m spatial resolution. Produced by the Environment Agency in 2020, this dataset is derived from a combination of our Time Stamped archive and National LIDAR Programme, which has been merged and re-sampled to give the best possible coverage. Where repeat surveys have been undertaken the newest, best resolution data is used. Where data was resampled a bilinear interpolation was used before being merged. The 2020 LIDAR Composite contains surveys undertaken between 6th June 2000 and 1st September 2020. Please refer to the survey index files which shows, for any location, what Time Stamped survey or National LIDAR Programme block went into the production of the LIDAR composite for a specific location. The DTM (Digital Terrain Model) is produced from the last return LIDAR signal. We remove surface objects from the Digital Surface Model (DSM), using bespoke algorithms and manual editing of the data, to produce a terrain model of just the surface. Available to download as GeoTiff files in 5km grids, data is presented in metres, referenced to Ordinance Survey Newlyn, using the OSTN’15 transformation. All LIDAR data has a vertical accuracy of +/-15cm RMSE. 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 500,000 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 Environment Agency’s open data LIDAR archives includes the Point Cloud data, and derived raster surface models of survey specific areas dating back to 1998 and composites of the best data available in any location. This metadata record is for Approval for Access product AfA458. Attribution statement: (c) Environment Agency copyright and/or database right 2021. All rights reserved. Attribution statement: © Environment Agency copyright and/or database right 2015. All rights reserved.
dataset
https://environment.data.gov.uk/DefraDataDownload/?Mode=survey
protocol: DSP:ESRI
name: Survey_Download
description: Survey Download
https://environment.data.gov.uk/image/rest/services/SURVEY/LIDARCompositeDTM2m2020/MapServer
protocol: WWW:LINK-1.0-http--link
name: LIDARCompositeDigitalTerrainModel(DTM)_2m_2020_PublicESRIRESTEndpoint
description: LIDAR Composite Digital Terrain Model (DTM) - 2m - 2020 - Public ESRI REST Endpoint
https://environment.data.gov.uk/spatialdata/lidar-composite-digital-terrain-model-dtm-2m-2020/wms
protocol: WMS
name: LIDARCompositeDigitalTerrainModel(DTM)_2m_2020_WMS
description: LIDAR Composite Digital Terrain Model (DTM) - 2m - 2020 - WMS
protocol: WWW:LINK-1.0-http--link
name: LIDARCompositeDTM2020_2m_AspectImageServiceEndpoint
description: LIDAR Composite DTM - 2020 - 2m - Aspect - Image Service Endpoint
protocol: WWW:LINK-1.0-http--link
name: LIDARCompositeDTM2020_2m_ElevationImageServiceEndpoint
description: LIDAR Composite DTM - 2020 - 2m - Elevation - Image Service Endpoint
protocol: WWW:LINK-1.0-http--link
name: LIDARCompositeDTM2020_2m_HillshadeImageServiceEndpoint
description: LIDAR Composite DTM - 2020 - 2m - Hillshade - Image Service Endpoint
protocol: WWW:LINK-1.0-http--link
name: LIDARCompositeDTM2020_2m_SlopeImageServiceEndpoint
description: LIDAR Composite DTM - 2020 - 2m - Slope - Image Service Endpoint
protocol: WWW:LINK-1.0-http--link
name: LIDARCompositeDTM2020_2m_TSRImageServiceEndpoint
description: LIDAR Composite DTM - 2020 - 2m - TSR - Image Service Endpoint
https://environment.data.gov.uk/DefraDataDownload/?mapService=EA/SurveyIndexFiles&Mode=spatial
protocol: DSP:ESRI
name: Metadata Shapefile Index Catalogues - Download
description: Download the coverage metadata files
https://environment.data.gov.uk/spatialdata/survey-index-files/wms
protocol: OGC:WMS
name: Metadata Index Catalogues - WMS
description: Coverage metadata files - Web Map Service
https://environment.data.gov.uk/spatialdata/survey-index-files/wfs
protocol: OGC:WFS
name: Metadata Index Catalogues - WFS
description: Coverage metadata files - Web Feature Service
https://support.environment.data.gov.uk/hc/en-gb/sections/360001747351-Survey-Data-Catalogue
protocol: http:
name: Survey Data Catalogue FAQs
description: Survey Data Catalogue FAQs
668881ad-4f8f-42bd-b835-89acf0269496_resource
eng
http://www.opengis.net/def/crs/EPSG/0/27700
environment
elevation
OpenData
-6.236
2.072
55.816
49.943
http://data.ordnancesurvey.co.uk/doc/country/england
2000-06-06
2020-09-01
creation
2021-06-01
revision
2021-06-01
notPlanned
Light Detection and Ranging (LIDAR) is an airborne mapping technique, which uses a laser to measure the height of the terrain and surface objects on the ground such as trees and buildings. Hundreds of thousands of 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 vertical accuracy of the LIDAR dataset is +/-15cm RMSE.
Open format | Geo Tagged Image File Format (GeoTIFF)
Open Government Licence
There are no public access constraints to this data. Use of this data is subject to the licence identified.
Environment Agency
DSPcustomerforum@environment-agency.gov.uk
https://support.environment.data.gov.uk/hc/en-gb
description: Defra Data Services Forum
pointOfContact
Environment Agency
metadata@environment-agency.gov.uk
pointOfContact
2022-03-21