LIDAR Ground Truth Surveys
The Environment Agency LIDAR Ground Truth surveys dataset is an archive of elevation points and attribute information that have been independently surveyed to verify the accuracy of the EA's LIDAR timestamped surveys. Captured by various independent surveyors, a ground truth survey is a collection of a few hundred points captured on a flat, unambiguous surface such as a tarmac car park or tennis court using GPS. Each ground truth point has an accuracy of +/-3cm R.M.S.E and contains attribute information such as the date of survey, surface type, survey method and transformation and geoidal models used. A ground truth survey may potentially be used for multiple LIDAR surveys provided it is less than 5 years old, or 3 years for coastal projects. The LIDAR timestamped survey is compared against the ground truth survey to assess the Root Mean Square Error (R.M.S.E), standard deviation and random error of the LIDAR. All LIDAR surveys must report an error of less than +/-15cm RMSE and 10cm for standard deviation and random error to pass quality control. For the specific ground truth results for a LIDAR survey please contact us. Attribution statement: © Environment Agency copyright and/or database right 2015. All rights reserved.
dataset
protocol: DSP:ESRI
name: LIDAR_Ground_Truth_Surveys_Download
description: LIDAR Ground Truth Surveys Download
https://environment.data.gov.uk/spatialdata/lidar-ground-truth-surveys/wms
protocol: WMS
name: LIDAR_Ground_Truth_Surveys_WMS
description: LIDAR Ground Truth Surveys WMS
https://environment.data.gov.uk/spatialdata/lidar-ground-truth-surveys/wfs
protocol: WFS
name: LIDAR_Ground_Truth_Surveys_WFS
description: LIDAR Ground Truth Surveys WFS
https://environment.data.gov.uk/arcgis/rest/services/EA/LIDARGroundTruthSurveys/FeatureServer
protocol: WWW:LINK-1.0-http--link
name: LIDAR_Ground_Truth_Surveys_ESRI_REST_Feature_Server_Endpoint
description: LIDAR Ground Truth Surveys ESRI REST Feature Server Endpoint
https://support.environment.data.gov.uk/hc/en-gb
protocol: http:
name: DSP_CUSTOMER_FORUM
description: DEFRA Data Services Platform Customer Forum
16b4d492-0c0d-410b-9732-65eebcc3d9f9
eng
http://www.opengis.net/def/crs/EPSG/0/27700
environment
elevation
OpenData
Mapping
LIDAR
Elevation
Survey
mapping
GIS digital format
remote sensing
publication
2010-01-13
-6.236
2.072
55.816
49.943
http://data.ordnancesurvey.co.uk/doc/country/england
2005-01-01
2019-01-01
creation
2019-06-12
revision
2019-06-12
annually
The Environment Agency LIDAR Ground Truth Archive is an archive of X,Y,Z points and attribute information that have been independently surveyed to verify the accuracy of the EA's LIDAR Timestamped surveys. Captured by various independent surveyors, a ground truth survey is a collection of a few hundred points captured on a flat, unambiguous surface such as a tarmac car park or tennis court using GPS. Each ground truth point has an accuracy of .+/-3cm R.M.S.E and contains attribute information such as the date of survey, surface type and survey method. A ground truth survey may be used for multiple LIDAR surveys provided it is less that 5 years old, or 3 years for coastal projects.
Open format | Shapefile (SHP)
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