45ae3437f82f4e4fb75f9a5c26a194ba English 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 88a8620229014e0ebacf0606b302112d dataset NERC EDS Centre for Environmental Data Analysis 01235446432 RAL Space STFC Rutherford Appleton Laboratory, Harwell Campus Didcot OX11 0QX United Kingdom support@ceda.ac.uk pointOfContact 2026-03-10T04:01:40 UK GEMINI 2.3 WGS 84 ForestScan Project : Terrestrial Laser Scanning (TLS) of FBRMS-02: Station d’Etudes des Gorilles et Chimpanzés, Lopé National Park, Gabon 1ha plot OKO-01, June to July 2022 2025-03-27T15:17:26 publication 2025-03-27T15:17:26 creation https://catalogue.ceda.ac.uk/uuid/45ae3437f82f4e4fb75f9a5c26a194ba 45ae3437f82f4e4fb75f9a5c26a194ba NERC EDS Centre for Environmental Data Analysis 10.5285/45ae3437f82f4e4fb75f9a5c26a194ba doi Terrestrial laser scanning (TLS) was conducted at three ForestScan 1ha (100m x 100m) Forest Biomass Reference Measurement Site (FBRMS) plots in Gabon from June to July 2022 by Cecilia Chavana-Bryant using a Riegl VZ-400i scanner. Data collection assistance was provided by UCL postdoc Dr Phil Wilkes and a local team of field assistants, data processing assistance was provided by Mr Peter Vines. This data collection was part of the European Space Agency (ESA) funded ForestScan project designed to improve the use of new Earth Observation (EO) estimates of above ground biomass (AGB) by providing TLS-, unmanned airborne vehicles (UAV-LS)- and airborne (ALS) LiDAR scanning-derived AGB and tree census data to compare to allometric and EO-derived estimates. Scans were acquired using chain sampling at 121 locations along a 10m Cartesian grid to ensure sufficient data overlap to produce high-quality point clouds for all ForestScan 1ha FBRMS plots. Due to the scanner's 100° field of view, capturing a complete sample of the scene at each scan location required two scans -an upright scan and a tilt scan. Upright scans are odd-numbered while tilt scans are even-numbered. The first scan at each plot is collected at the southwest corner, i.e. scan position 0,0 (unless something impedes it, e.g. stream, large tree fall, etc. or if the plot is oriented differently). To facilitate scan registration, five retro-reflective targets were located between scan positions with all tilt scans along the first sampling line were oriented towards the same sampling position along the next sampling line and tilt scans at the ends of sampling lines (i.e. tilt scans along plot edges) were oriented towards the inside of the plot. This aids scan registration as it allows tilt scans to capture the previous scan location within its field of view. A total of 242 scans were collected at each plot. The Riegl operating and processing software RiSCAN PRO version 2.14.1 was used to generate a plot-level point cloud, scans were coarse registered using the shared retro-reflective targets located between consecutive scan positions. Coarse registration was then fine-tuned using Multi Station Adjustment 2 (MSA2). Data for each of the four FBRMS plots is found within plot directories: LPG-01, OKO-01, OKO-02 and OKO-03. Plot directories contain a main project directory (named using the starting date of data collection, e.g. 2022-06-04_OKO-01.PROJ) with nine data subdirectories and a tile_index.dat file as shown in the archived document /neodc/forestscan/data/gabon/lope/TLS_lope_2022/OKO-01/ForestScan_example_data_directory_structure.pdf which details the data structure shared by all FBRSM plot TLS datasets. Chavana-Bryant, Cecilia Unavailable author Unavailable author Wilkes, Phil Unavailable author Unavailable author Yang, Wanxin Unavailable author Unavailable author Burt, Andrew Unavailable author Unavailable author Vines, Peter Unavailable author Unavailable author Bennett, Amy C. Unavailable author Unavailable author Pickavance, Georgia C. Unavailable author Unavailable author Cooper, Declan L.M. Unavailable author Unavailable author Lewis, Simon L. Unavailable author Unavailable author Phillips, Oliver L. Unavailable author Unavailable author Brede, Benjamin Unavailable author Unavailable author Lau, Alvaro Unavailable author Unavailable author Herold, Martin Unavailable author Unavailable author McNicol, Iain M. Unavailable author Unavailable author Mitchard, Edward T.A. Unavailable author Unavailable author Coombes, David Unavailable author Unavailable author Jackson, Toby D. Unavailable author Unavailable author Makaga, Löic Unavailable author Unavailable author Milamizokou Napo, H O Unavailable author Unavailable author Ngomanda, Alfred Unavailable author Unavailable author Ntie, Stephan Unavailable author Unavailable author Medjibe, Vincent Unavailable author Unavailable author Dimbonda, Pacôme Unavailable author Unavailable author Soenens, Luna Unavailable author Unavailable author Daelemans, Virginie Unavailable author Unavailable author Proux, Letitia Unavailable author Unavailable author Nilus, Reuben Unavailable author Unavailable author Labrière, Nicolas Unavailable author Unavailable author Jeffery, Kathryn Unavailable author Unavailable author Burslem, David F.R.P. Unavailable author Unavailable author Clewley, Daniel Unavailable author Unavailable author Moffat, David Unavailable author Unavailable author Qie, Lan Unavailable author Unavailable author Bartholomeus, Harm Unavailable author Unavailable author Vincent, Grégoire Unavailable author Unavailable author Barbier, Nicolas Unavailable author Unavailable author Derroire, Géraldine Unavailable author Unavailable author Abernethy, Kate Unavailable author Unavailable author Scipal, Klaus Unavailable author Unavailable author Disney, Mathias Unavailable author Unavailable author NERC EDS Centre for Environmental Data Analysis custodian 01235446432 RAL Space STFC Rutherford Appleton Laboratory, Harwell Campus Didcot OX11 0QX United Kingdom support@ceda.ac.uk custodian NERC EDS Centre for Environmental Data Analysis distributor 01235446432 RAL Space STFC Rutherford Appleton Laboratory, Harwell Campus Didcot OX11 0QX United Kingdom support@ceda.ac.uk distributor Disney, Mathias Unavailable principal_investigator Unavailable principalInvestigator NERC EDS Centre for Environmental Data Analysis point_of_contact 01235446432 RAL Space STFC Rutherford Appleton Laboratory, Harwell Campus Didcot OX11 0QX United Kingdom support@ceda.ac.uk pointofContact NERC EDS Centre for Environmental Data Analysis publisher 01235446432 RAL Space STFC Rutherford Appleton Laboratory, Harwell Campus Didcot OX11 0QX United Kingdom support@ceda.ac.uk publisher unknown dataset ForestScan project GEO-TREES BIOMASS mission European Space Agency (ESA) Earth Observation (EO) calibration/validation Terrestrial LiDAR Scanning (TLS) Unpiloted Aerial Vehicle LiDAR Scanning (UAV-LS) Aerial LiDAR Scanning (ALS) Digital twins Above Ground Biomass (AGB) estimates Carbon estimates Forest structure Tree segmentation 3D tree structure Field protocols orthoimagery theme GEMET - INSPIRE themes, version 1.0 2008-06-01 publication otherRestrictions Public data: access to these data is available to both registered and non-registered users. otherRestrictions 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. grid English imageryBaseMapsEarthCover 11.583 11.583 -0.196 -0.196 2022-06-04T00:00:00 2022-06-09T00:00:00 Terrestrial LiDAR scanner data in csv, point cloud and Riegl Proprietary raw data format. Details of formats and data structure can be found in the archived document /neodc/forestscan/data/gabon/lope/TLS_lope_2022/OKO-01/ForestScan_example_data_directory_structure.pdf which details the data structure shared by all FBRSM plot TLS datasets. Further explanation of the files and their origin can also be found in the process computation section. NERC EDS Centre for Environmental Data Analysis Data Center Contact 01235446432 RAL Space STFC Rutherford Appleton Laboratory, Harwell Campus Didcot OX11 0QX United Kingdom support@ceda.ac.uk distributor https://catalogue.ceda.ac.uk/uuid/45ae3437f82f4e4fb75f9a5c26a194ba CEDA Data Catalogue Page Detail and access information for the resource information http://data.ceda.ac.uk/neodc/forestscan/data/gabon/lope/TLS_lope_2022/OKO-01 DOWNLOAD Download Data download https://essd.copernicus.org/preprints/essd-2025-67/ Chavana-Bryant, C., Wilkes, P., Yang, W., Burt, A., Vines, P., Bennett, A.C., Pickavance, G., Cooper, D.L.M., Lewis, S.L., Phillips, O.L., Brede, B., Lau, A., Herold, M., McNicol, I.M., Mitchard, E.T.A., Barbier, N., Vincent, G., Coomes, D.A., Jackson, T., Makaga, L., Milamizokou Napo, H.O., Ngomanda, A., Ntie, S., Medjibe, V., Dimbonda, P., Soenens, L., Daelemans, V., Bartholomeus, H., Majalap, N., Nilus, R., Labrière, N., Burslem, D.F.R.P., Qie, L., Derroire, G., Proux, L., Abernethy, K., Jeffery, K., Clewley, D., Moffat, D., Scipal, K. and Disney, M. ForestScan: a unique multiscale dataset of tropical forest structure across 3 continents including terrestrial, UAV and airborne LiDAR and in-situ forest census data. ESSD. 2025 No further details. information dataset 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 2010-12-08 Data were produced by the project team and supplied for archiving at the Centre for Environmental Data Analysis (CEDA).