LIDAR Composite DSM 2017 - 1m
This dataset is no longer available on the Data Services Platform. New version of the LIDAR Composite DSM data is available here: https://environment.data.gov.uk/searchresults;query=lidar%20composite%202020;searchtype=All;page=1;pagesize=20;orderby=Relevancy The LIDAR Composite DSM (Digital Surface Model) is a raster elevation model covering >60% of England at 1m spatial resolution. Produced by the Environment Agency in 2017, this dataset is derived from a combination of our full time stamped archive, 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. The composite is updated on an annual basis to include the latest surveys. The DSM (Digital Surface Model) is produced from the last return LIDAR signal and includes heights of objects, such as vehicles, buildings and vegetation, as well as the terrain surface. Available to download as ASCII 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. A tinted shaded relief, which is an image showing what LIDAR looks like when loaded into specialist software, is also available as a WMS feed. You can also download survey index files which shows, for any location, what Time Stamped survey went into the production of the LIDAR composite. 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 and composites of the best data available in any location. To find out more about LIDAR and the various surface models we produce please read our story map This metadata record is for Approval for Access product AfA458. Attribution statement: (c) Environment Agency copyright and/or database right 2019. All rights reserved. Attribution Statement: © Environment Agency copyright and/or database right 2019. 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/spatialdata/lidar-composite-digital-surface-model-dsm-1m/wms
protocol: WMS
name: LIDARCompositeDSM1m_WMS
description: LIDAR Composite Digital Surface Model (DSM) - 1m WMS
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_FAQs
description: Survey Data Catalogue FAQs
6f51a299-351f-4e30-a5a3-2511da9688f7
eng
http://www.opengis.net/def/crs/EPSG/0/27700
environment
elevation
OpenData
Mapping
Elevation
LIDAR
mapping
GIS digital format
remote sensing
flood
publication
2010-01-13
-5.70
1.80
55.80
50.00
http://data.ordnancesurvey.co.uk/doc/country/england
1998-01-01
2017-09-02
creation
2014-10-01
revision
2019-04-18
annually
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 | Arc/Info ASCII Grid (AAIGrid)
Not Applicable
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
2022-08-18