FR – ForestScan : un ensemble de données unique à plusieurs échelles de la structure des forêts tropicales sur 3 continents, incluant des données terrestres, UAV, LiDAR aéroportées et des recensements forestiers in situ
AN – ForestScan : a unique, multiscale dataset of tropical forest structure across 3 continents including terrestrial, UAV and airborne LiDAR and in-situ forest census data
FR – Le projet ForestScan teste de nouveaux outils pour mieux quantifier la biomasse et le volume de bois des forêts sur des sites d'étude spécialisés (FBRMS).
Ce
projet travaille avec des partenaires mondiaux pour vérifier la précision des
mesures de biomasse effectuées par satellite. Il fait aussi partie de
GEO-TREES, un consortium international dédié à l'établissement de sites de
référence en forêt pour soutenir la recherche scientifique et encourager les
investissements dans l'observation de la Terre. ForestScan constitue la
première démonstration des capacités offertes par le réseau GEO-TREES. Ce
projet permettra d'améliorer considérablement l'utilisation des mesures de
biomasse satellitaires pour la surveillance de nos forêts.
Le
projet ForestScan fournit des données uniques pour observer les forêts
tropicales en 3D. Ces informations proviennent de lasers installés au sol, sur
des drones ou dans des avions, et ces mesures sont complétées par des
inventaires forestiers précis effectués directement sur le terrain. Ces données
servent à vérifier l'exactitude des estimations satellitaires de la biomasse
forestière. Elles permettent aussi de mieux comprendre la structure des forêts
tropicales.
Les
données proviennent de trois sites de référence : Paracou en Guyane française,
la Lopé au Gabon et Kabili-Sepilok en Malaisie. Sur chaque site, les chercheurs
ont utilisé des lasers LiDAR pour créer des images 3D de la forêt. Ils ont
également réalisé des inventaires individuels de chaque arbre sur de grandes
surfaces de plusieurs hectares et collecté d'autres informations pertinentes.
Cependant, en raison de la difficulté extrême de travailler en forêt dense,
tous les sites n'ont pas pu bénéficier de l'ensemble de ces analyses.
Des
protocoles détaillés expliquent comment collecter les données sur chaque site.
Ils décrivent l'utilisation des lasers au sol (TLS), des lasers embarqués sur
drones (UAV-LS) et la réalisation d'inventaires forestiers. Ces documents
expliquent également comment intégrer ces mesures avec celles obtenues depuis
des plateformes aéroportées (ALS). L'objectif final est de passer de ces
mesures locales à des estimations globales exploitables pour la validation
satellitaire.
Ce
document présente les protocoles à suivre et les défis liés à la collecte de
données sur le terrain. Il explique comment établir de nouveaux sites de
référence (FBRMS) ou améliorer les sites existants pour qu'ils répondent aux
normes FBRMS, en incluant une analyse coûts-bénéfices de ces installations.
AN – The ForestScan project is testing new tools to better quantify the biomass and timber volume in forests at specialized study sites (FBRMS).
This
project works with global partners to verify the accuracy of satellite-based
biomass measurements. It is also part of GEO-TREES, an international consortium
dedicated to establishing reference sites in forests to support scientific
research and encourage investment in Earth observation. ForestScan is the first
demonstration of the capabilities offered by the GEO-TREES network. This
project will enable much better use of satellite-based biomass measurements for
monitoring our forests.
The
ForestScan project provides unique data for observing tropical forests in 3D.
This information comes from lasers installed on the ground, on drones, or in
aircraft, and these measurements are complemented by precise tree inventories
conducted directly in the field. This data is used to verify the accuracy of
satellite-derived forest biomass estimates. It also allows for a better
understanding of tropical forest structure.
The
data comes from three reference sites: Paracou in French Guiana, Lopé in Gabon,
and Kabili-Sepilok in Malaysia. At each site, researchers used LiDAR lasers to
create 3D images of the forest. They also counted and measured each tree
individually across large areas of several hectares and collected other
relevant information. However, because working in dense forests can be
extremely difficult, not all sites could undergo all of these analyses.
Detailed
protocols explain how to collect data at each site. They demonstrate how to use
ground-based lasers (TLS), drone-mounted lasers (UAV-LS), and how to conduct
tree inventories. These documents also explain how to integrate these
measurements with those from airborne platforms (ALS). The ultimate goal is to
scale these local measurements to global estimates usable for satellite
validation.
This
document outlines the protocols to follow and the challenges of collecting data
in the field. It explains how to establish new reference sites (FBRMS) or
upgrade existing sites to meet FBRMS standards, including a cost-benefit
analysis of these installations.
The
ForestScan project is testing new tools to better quantify the biomass and
timber volume in forests at specialized study sites (FBRMS).
This
project works with global partners to verify the accuracy of satellite-based
biomass measurements. It is also part of GEO-TREES, an international consortium
dedicated to establishing reference sites in forests to support scientific
research and encourage investment in Earth observation. ForestScan is the first
demonstration of the capabilities offered by the GEO-TREES network. This
project will enable much better use of satellite-based biomass measurements for
monitoring our forests.
The
ForestScan project provides unique data for observing tropical forests in 3D.
This information comes from lasers installed on the ground, on drones, or in
aircraft, and these measurements are complemented by precise tree inventories
conducted directly in the field. This data is used to verify the accuracy of
satellite-derived forest biomass estimates. It also allows for a better
understanding of tropical forest structure.
The
data comes from three reference sites: Paracou in French Guiana, Lopé in Gabon,
and Kabili-Sepilok in Malaysia. At each site, researchers used LiDAR lasers to
create 3D images of the forest. They also counted and measured each tree
individually across large areas of several hectares and collected other
relevant information. However, because working in dense forests can be
extremely difficult, not all sites could undergo all of these analyses.
Detailed
protocols explain how to collect data at each site. They demonstrate how to use
ground-based lasers (TLS), drone-mounted lasers (UAV-LS), and how to conduct
tree inventories. These documents also explain how to integrate these
measurements with those from airborne platforms (ALS). The ultimate goal is to
scale these local measurements to global estimates usable for satellite
validation.
This
document outlines the protocols to follow and the challenges of collecting data
in the field. It explains how to establish new reference sites (FBRMS) or
upgrade existing sites to meet FBRMS standards, including a cost-benefit
analysis of these installations.
Auteurs/Authors : Cecilia Chavana-Bryant, Phil Wilkes, Wanxin Yang, Andrew Burt, Peter Vines, Amy C. Bennett, Georgia C. Pickavance, Declan L. M. Cooper, Simon L. Lewis, Oliver L. Phillips, Benjamin Brede, Alvaro Lau, Martin Herold, Iain McNicol, Edward T. A. Mitchard, David A. Coomes, Toby Jackson, Loic Makaga, Heddy O. Milamizokou Napo, Alfred Ngomanda, Stephan Ntie, Vincent Medjibe, Pacome Dimbonda, Luna Soenens, Virginie Daelemans, Laetitia Proux, Reuben Nilus, Nicolas Labriere, Kathryn Jeffery, David F. R. P. Burslem, Daniel Clewley, David Moffat, Lan Qie, Harm Bartholomeus, Vincent Grégoire, Nicolas Barbier, Geraldine Derroire, Katharine Abernethy, Klaus Scipal et Mat Disney
DOI : https://doi.org/10.5194
Date de
publication : septembre 2025
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