LIDAR Composite DTM 2022 – 10m
The LIDAR Composite 10m DTM (Digital Terrain Model) is a raster elevation model covering >95% of England. This 10m DTM is available to download as a single GeoTiff raster mosaic at 10m resolution. The DTM has been resampled from the LIDAR Composite 2022 2m DTM using a bilinear resampling technique. Produced by the Environment Agency in 2022, 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 2022 LIDAR Composite contains surveys undertaken between 19th March 1998 and 2nd April 2022. 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 2022. All rights reserved. Attribution statement: © Environment Agency copyright and/or database right 2022. All rights reserved.
dataset
protocol: http
name: LIDAR_Composite_10m_DTM_2022.zip
description: LIDAR_Composite_10m_DTM_2022.zip download on Defra Data Services Platform
ce8fe7e7-bed0-4889-8825-19b042e128d2_resource
eng
http://www.opengis.net/def/crs/EPSG/0/27700
environment
elevation
environment
elevation
-6.236
2.072
55.816
49.943
1998-03-19
2022-04-02
creation
2023-03-08
revision
2023-03-08
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.
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
2023-12-11