LIDAR DTM Time Stamped Tiles
The LIDAR DTM (Digital Terrain Model) Time Stamped Tiles product is an archive of raster elevation data produced by the Environment Agency. Site specific LIDAR surveys have been carried out across England since 1998, with certain areas, such as the coastal zone, being surveyed multiple times. Data is available at varying resolutions of 25cm, 50cm, 1m and 2m, depending on project requirements. 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 rasters in 5km zipfiles, data is presented in metres, referenced to Ordnance Survey Newlyn and data aligned to the OS Grid. All LIDAR data has a vertical accuracy of +/-15cm RMSE. The transformation used on the data is specific to the time period of survey. Please refer to the metadata index catalogue which show, for any location, what time stamped data is available, the specific dates of survey, resolution of product and what transformation and geoidal model used. Attribution statement: © Environment Agency copyright and/or database right 2020. All rights reserved.
dataset
protocol: http
name: OSGM02_to_OSGM15_Adjustment_Grid.zip
description: OSGM02_to_OSGM15_Adjustment_Grid.zip download on Defra Data Services Platform
https://environment.data.gov.uk/DefraDataDownload/?Mode=survey
protocol: http
name: Survey Data - Download
description: Download the survey data
https://environment.data.gov.uk/explore/dbadf364-0192-4bcf-a223-f3d403f08682?download=true
protocol: http
name: Metadata Shapefile Index Catalogues - Download
description: Download the coverage metadata file
https://environment.data.gov.uk/spatialdata/survey-index-files/wms
protocol: http
name: Metadata Index Catalogues - WMS
description: Coverage metadata files - Web Map Service
https://environment.data.gov.uk/spatialdata/survey-index-files/wfs
protocol: http
name: Metadata Index Catalogues - WFS
description: Coverage metadata files - Web Feature Service
https://support.environment.data.gov.uk/space/DPK/15827049/Survey+Data+Catalogue
protocol: http
name: Survey Data FAQs
description: Survey Data FAQs
e0c64fdb-2502-4efd-b98b-243f70d8e53e
eng
http://www.opengis.net/def/crs/EPSG/0/27700
environment
elevation
LIDAR
environment
elevation
Elevation
publication
2008-06-01
mapping
publication
2010-01-13
flood
publication
2010-01-13
mapping
publication
2010-01-13
GIS digital format
publication
2010-01-13
remote sensing
publication
2010-01-13
-5.7
1.8
55.8
50
1996-12-01
2021-01-31
creation
1998-01-10
revision
2023-12-15
quarterly
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 | Tagged Image File Format (TIFF)
Open Government Licence
There are no public access constraints to this data. Use of this data is subject to the licence identified.
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://environment.data.gov.uk/support
description: Defra Data Services Forum
pointOfContact
Environment Agency
DSPcustomerforum@environment-agency.gov.uk
pointOfContact
2023-12-16