Terrestrial LiDAR data for the multi-trophic impact of ash dieback project, Wytham Woods, July 2020 - July 2022

This dataset is comprised of raw data and rotation matrices captured with the NERC-funded Terrestrial Laser Scanner (TLS) instrument. Data was collected across 15 plots in Wytham Woods, UK, in leaf-on and -off conditions for 3 years. For 5 of the plots all ash trees were girdled to simulate death by the fungal pathogen Hymenoscyphus fraxineus ('ash dieback'), 5 of the plots were 'ash-control' where the dominant species were Fraxinus excelsior and the remaining 5 plots were non-ash dominant.

TLS data was acquired on the four edges of the plot and the plot centre. For the summer 2020 and winter 2021 acquisitions the scanner was mounted on a pneumatic mast to capture data from different heights (2 m, 4 m, and 6 m), from summer 2021 onwards the scanner was mounted at a height of 2 m. The scanner was set to an angular step of 0.04 degrees. In between each scan position a set of retro-reflective targets were positioned to be used as tie-points between scans. Scan data was coregistered using RiSCAN Pro, the 4x4 rotation transformation matrices to transform the point cloud data into a common reference coordinate system can be found in the "matrix" directory, all acquistions for the same plot were registered to the same coordinate system. For more information on TLS acquisition for this project see Wilkes et al. (2021) and more generally refer to Wilkes et al. (2017) which can be found in the documentation section.

Date (Publication): 2025-06-03T08:00:30

Date (Creation): 2025-06-03T08:00:30

Citation identifier: https://catalogue.ceda.ac.uk/uuid/f61458fc1bfa4d3982b34b702eb96689

Citation identifier: NERC EDS Centre for Environmental Data Analysis / f61458fc1bfa4d3982b34b702eb96689

Point of contact

Organisation name	Individual name	Electronic mail address	Role
Unavailable	Wilkes, Phil	Unavailable	Author
Unavailable	Disney, Mathias	Unavailable	Author
Unavailable	Yang, Wanxin	Unavailable	Author
Unavailable	Chavana-Bryant, Cecilia	Unavailable	Author
Unavailable	Burt, Andrew	Unavailable	Author
NERC EDS Centre for Environmental Data Analysis		support@ceda.ac.uk	Custodian
NERC EDS Centre for Environmental Data Analysis		support@ceda.ac.uk	Distributor
Unavailable	Malhi, Yadvinder	Unavailable	Principal investigator
NERC EDS Centre for Environmental Data Analysis		support@ceda.ac.uk	pointofContact
NERC EDS Centre for Environmental Data Analysis		support@ceda.ac.uk	Publisher

Maintenance and update frequency: Unknown

Update scope: Dataset

Keywords

Terrestrial Laser Scanning
Trees
LiDAR

GEMET - INSPIRE themes, version 1.0

orthoimagery

Access constraints: Other restrictions

Other constraints: Public data: access to these data is available to both registered and non-registered users.

Use constraints: Other restrictions

Other constraints: Under the following licence http://creativecommons.org/licenses/by/4.0/, appropriate use of these data may fall under any use. This message is intended as guidance, always read the full licence. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.

Spatial representation type: Grid

Language: English

Topic category

Imagery base maps earth cover

Begin date: 2020-07-13T00:00:00

End date: 2022-07-25T00:00:00

Unique resource identifier: WGS 84

Distribution format

Name	Version
Point cloud data in RIEGL proprietry .rxp format, image data in .jpg format and matrix data in text file.

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
NERC EDS Centre for Environmental Data Analysis		support@ceda.ac.uk	Distributor

OnLine resource

Protocol	Linkage	Name
	https://catalogue.ceda.ac.uk/uuid/f61458fc1bfa4d3982b34b702eb96689	CEDA Data Catalogue Page

OnLine resource

Protocol	Linkage	Name
	http://data.ceda.ac.uk/neodc/tls/data/raw/uk/WHY/multitrophic_wytham	DOWNLOAD

OnLine resource

Protocol	Linkage	Name
	https://doi.org/10.1016/j.rse.2017.04.030	Wilkes, P., Lau, A., Disney, M. I., Calders, K., Burt, A., Gonzalez de Tanago Menaca, J., … Herold, M. (2017). Data Acquisition Considerations for Terrestrial Laser Scanning of Forest Plots. Remote Sensing of Environment, 196, 140–153.

OnLine resource

Protocol	Linkage	Name
	https://doi.org/10.34726/wim.1862	Wilkes, P., Disney, M., Dahlsjö, C. A. L., & Malhi, Y. (2021). Characterising understorey Plant Area Index with TLS. In Proceedings of the SilviLaser Conference 2021 (pp. 7–9).

Hierarchy level: Dataset

Conformance result

Title: Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

Date (Publication): 2010-12-08

Statement: Data were produced by the UCL project team and supplied for archiving at the Centre for Environmental Data Analysis (CEDA).

Metadata

File identifier: f61458fc1bfa4d3982b34b702eb96689 XML

Metadata language: English

Character set: UTF8

Parent identifier: National Centre for Earth Observation (NCEO) partnered datasets
7fe9f59731ab47b6a20e792e0cba4641

Hierarchy level: Dataset

Date stamp: 2026-02-08T03:28:26

Metadata standard name: UK GEMINI

Metadata standard version: 2.3

Metadata author

Organisation name	Individual name	Electronic mail address	Role
NERC EDS Centre for Environmental Data Analysis		support@ceda.ac.uk	Point of contact

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