Mes travaux de recherches concernent la télédétection des écosystèmes végétaux naturels tels la forêt et les milieux humides. Mon sujet privilégié est le développement d’outils d’analyse des données 3D du LiDAR terrestre dans le cadre des inventaires forestiers (le LiDAR est particulièrement bien adapté pour mesurer des paramètres autrement difficiles à obtenir). Je cherche d’ailleurs à améliorer la capacité de mesurer les couverts forestiers avec le LiDAR aéroporté et d’autres outils de télédétection comme les images satellitaires optique/infrarouge de toutes les résolutions spatiales. Je consacre finalement un certain temps sur des études portant sur des problématiques de conservation des écosystèmes et l’utilisation d’outils géomatiques pour la gestion par bassin versant.

• Formation
• Domaines d’enseignement
• Recherches actuelles
• Publications récentes

• B. Sc. en physique spécialisé en sciences de l’atmosphère, UQAM, Montréal, Canada (1987)
• M. Sc. (sciences de l’espace), York University, Toronto, Canada (1990)
• Ph. D. (géomatique et télédétection), Université Laval, Québec, Canada (1997)

• Modélisation et analyse spatiale
• Traitement d’images numériques
• Géomatique appliquée aux ressources naturelles
• Formateur pour les cours en « Apprentissage par projet »

• Évaluation, modélisation et extraction de paramètres structuraux de peuplements forestiers à l’aide d’un LiDAR terrestre (3D) : évaluation des paramètres de la tige, du houppier, de la surface foliaire et de la distribution des éléments du couvert
• Amélioration des méthodes de cartographie des attributs forestiers à l’aide des données LiDAR (terrestre, sur drone et aéroporté) et des images satellitaires
• Cartographie, mesures et modélisation d’attributs structurels de la forêt et des arbres, tels que les attributs de la fibre de bois, l’indice de surface foliaire, la biomasse, le volume ligneux, le défilement des tiges, etc.
• Utilisation des outils géomatiques pour la gestion par bassin versants ou des eaux récréatives
• Cartographie des zones de conservation

• Vandendaele, B.; Fournier, R.A.; Vepakomma, U.; Pelletier, G.; Lejeune, P.; Martin-Ducup, O. (2021)  Estimation of Northern Hardwood Forest Inventory Attributes Using UAV Laser Scanning (ULS): Transferability of Laser Scanning Methods and Comparison of Automated Approaches at the Tree‐ and Stand‐Level. Remote Sensing. 13,2796. https://doi.org/10.3390/rs13142796
• Tristan R.H. Goodbody, Nicholas C. Coops, Joan E. Luther, Piotr Tompalski, Christopher Mulverhill, Catherine Frizzle, Richard Fournier, Shane Furze and Sam Herniman (2021) Airborne laser scanning for quantifying criteria and indicators of sustainable forest management in Canada. Canadian Journal of Forest Research. e-First  https://doi.org/10.1139/cjfr-2020-0424
• Nicholas C. Coops, Alexis Achim, Paul Arp, Christopher W. Bater, John P. Caspersen, Jean-François Côté, Jeffery P. Dech, Adam R. Dick, Karin van Ewijk, Richard Fournier, Tristan R. H. Goodbody, Chris R. Hennigar, Antoine Leboeuf, Olivier R. van Lier, Joan E. Luther, David A. MacLean, Grant McCartney, Gaetan Pelletier, Jean-Francois Prieur, Piotr Tompalski, Paul M. Treitz, Joanne C. White, Murray Woods (2021) Advancing the application of remote sensing for forest information needs in Canada : Lessons learned from a national collaboration of university, industrial and government stakeholders. The Forestry Chronicle, p.1-18. DOI: 10.5558/tfc2021-015
• Van Lier, O.R., Luther, J.E., White, J.C., Fournier, R.A., Côté, J.-F. (2021) Effect of scan angle on ALS metrics and area-based predictions of forest attributes for balsam fir dominated stands. Forestry, p. 1-24. doi.org/10.1093/forestry/cpab029
• Frizzle, C., Fournier, R. A., Trudel, M., Luther, J. E. (2021) Using the Soil and Water Assessment Tool to develop a LiDAR-based index of the erosion regulation ecosystem service. Journal of Hydrology, 595. https://doi:10.1016/j.jhydrol.2021.126009
• Bour, B., V. Danneyrolles, Y. Boucher, R.A. Fournier and L. Guindon (2021) Modeling post-logging height growth of black spruce forests by combining airborne LiDAR and historical forestry maps in eastern Canadian boreal forest. BioRxiv, https://doi.org/10.1101/2021.01.22.427172 
• Côté, J.-F., Luther, J., Lenz, P., Fournier, R.A., van Lier, O.R. (2021) Predicting wood fibre attributes of boreal conifer trees and forest plots with a fine-scale architectural model. Forest Ecology and Management, vol. 479, 118624.
• Crespo-Peremarch, P., Fournier, R.A., Nguyen, V.-T., Ruiz, L.A., van Lier, O.R. (2020) Comparative detection of the vertical distribution of forest components with full-waveform, discrete airborne and discrete terrestrial laser scanning data. Forest Ecology and Management, 473, 118268, p. 1-15.
• Soma, M., Pimont, F., Allard, D., Fournier, R.A., Dupuy J.-L. (2020) Mitigating occlusion effects in Leaf Area Density estimates from Terrestrial LiDAR through a specific kriging method. Remote Sensing of Environment, 245 : 111836 (p. 1-12).
• Bolton, D.K., P. Tompalski, N.C. Coops, J.C. White, M.A. Wulder, T. Hermosilla, M. Queinnec, J.E. Luther, O.R. van Lier, R.A. Fournier, M. Woods, P. Treitz, K. van Ewijk, G. Graham, L. Quist (2020) Optimizing Landsat time series length for regional mapping of lidar-derived forest structure. Remote Sensing of Environment, 239 : 111645.
• Bouvier, M., S. Durrieu, R.A. Fournier, N. Saint-Geours, D. Guyon, E. Grau and F. de Boissieu (2019) Influence of Sampling Design Parameters on Biomass Predictions Derived from Airborne LiDAR Data. Canadian Journal of Remote Sensing, 45(5) : 650-672.
• Ravaglia, J., R.A. Fournier, A. Bac, C. Véga, J.-F. Côté, A. Piboule and U. Rémillard (2019) Comparison of Three Algorithms to Estimate Tree Stem Diameter from Terrestrial Laser Scanner Data. Forests, 10(7), 599.
• Varin, M., J. Théau and R.A. Fournier (2019) Mapping ecosystem services provided by wetlands at multiples spatiotemporal scales : A case study in Quebec, Canada. Journal of Environmental Management, 246 : 334-344.
• Luther, J.E., R.A. Fournier, O.R. van Lier and M. Bujold (2019) Extending ALS-Based Mapping of Forest Attributes with Medium Resolution Satellite and Environmental Data. Remote Sensing, 11(9) : 1092.
• Giroud, G., R. Schneider, R.A. Fournier, J.E. Luther and O. Martin-Ducup (2018) Modeling black spruce wood fiber attributes with terrestrial laser scanning. Revue canadienne de recherche forestière.
• Martin-Ducup, O., R. Schneider and R.A. Fournier (2018) Analyzing the Vertical Distribution of Crown Material in Mixed Stand Composed of Two Temperate Tree Species. Forests, 9(11) : 693.
• Côté, J.-F., R.A. Fournier, J.E. Luther and O.R. van Lier (2018) Fine-scale three-dimensional modeling of boreal forest plots to improve forest characterization with remote sensing. Remote Sensing of Environment, 219 : 99-114.
• Mouissa, H., R.A. Fournier, E.H. Oldache et M. Bellatreche (2018) Détection des changements au niveau d’un couvert forestier en milieu semi-aride entre 1984-2009 : Cas de la forêt de Senalba Chergui de Djelfa (Algérie). Journal canadien de télédétection, 44(2): 104-112.
• Ravaglia, J., A. Bac, R.A. Fournier (2017a) Anisotropic Octrees: a multi-purpose tool for fast point cloud processing, Computer Science Research Notes (SCRN 2702), Proceedings of Winter School of Computer Graphics (WSCG) 2017, 101-110, Pilsen, Tchek Republic.
• Ravaglia, J., A. Bac and R.A. Fournier (2017) Extraction of tubular shapes from dense point clouds and application to tree reconstruction from laser scanned data. Computers & Graphics, 66 : 23-33.
• Perrault-Hébert, M., Y. Boucher, R.A. Fournier, F. Girard, I. Auger, N. Thiffault and F. Grenon (2017) Ecological drivers of post-fire regeneration in a recently managed boreal forest landscape of eastern Canada. Forest Ecology and Management, 399 : 74-81.
• Martin-Ducup, O., R. Schneider and R. A. Fournier (2017) A method to quantify canopy changes using multi-temporal terrestrial lidar data : Tree response to surrounding gaps. Agricultural and Forest Meteorology, 237 : 184–195.
• Grau, E., S. Durrieu, R.A. Fournier, J.-P. Gastellu-Etchegorry and T. Yin (2017) Estimation of 3D vegetation density with Terrestrial Laser Scanning datausing voxels. A sensitivity analysis of influencing parameters. Remote Sensing of Environment, 191 : 373-388.
• Boucher, Y., M. Perrault-Hébert, R.A. Fournier, P. Drapeau and I. Auger (2017) Cumulative patterns of logging and fire (1940–2009) : consequences on the structure of the eastern Canadian boreal forest. Landscape Ecology, 32 : 361-375.
• Martin-Ducup, O., R. Schneider and R. A. Fournier (2016) Response of sugar maple (Acer saccharum, Marsh.) tree crown structure to competition in pure versus mixed stands. Forest Ecology and Management, 374 : 20-32.
• Leboeuf, A. and R.A. Fournier (2015) A Multisensor Multiresolution Method for Mapping Vegetation Status, Surficial Deposits, and Historical Fires Over Very Large Areas in  Northern Boreal Forests of Quebec, Canada. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 8(11) : 5199-5211.
• He, J., F. Moffette, R.A. Fournier, J.-P. Revéret, J. Théau, J. Dupras, J.-P. Boyer, and M. Varin (2015) Meta-Analysis for the Transfer of Economic Benefits of Ecosystem Services Provided by Wetlands within Two Watersheds in Quebec, Canada. Wetlands and Ecological Management, 23(4) : 707-725.
• Blanchette, D., R.A. Fournier, J.E. Luther and J.-F. Côté (2015) Predicting wood fibre attributes using local scale metrics from terrestrial LiDAR data: a case study over the conifer stands of Newfoundland. Forest Ecology and Management, 347 : 116-129.
• Kotchi, S.O., P. Turgeon, S. Brazeau, Y. Pelcat, Y., J. Légaré, M.-P. Lavigne, F.E. Nzang, R.A. Fournier, P. Michel (2015) Evaluation of Earth Observation Systems for Estimating Environmental Determinants of Microbial Contamination Risks in Recreational Waters. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 33(7) : 3730-3741.
• Théau, J., A. Bernier and R.A. Fournier (2015) An evaluation framework based on sustainability-related indicators for the comparison of conceptual approaches for ecological networks. Ecological Indicators, 52 : 444-457. 
• Bouvier, M., S. Durrieu, R.A. Fournier and J.-P. Renaud (2015) Generalizing predictive models of forest inventory attributes using an area-based approach with airborne LiDAR data. Remote Sensing of Environment, 156 : 322-334.
• Leblanc, S.G., R.A. Fournier. (2014) Hemispherical photography simulations with an architectural modelto assess retrieval of leaf area index. Agricultural and Forest Meteorology, 194 : 64-76.
• Lessard, E., R.A. Fournier, J.E. Luther, M.J. Mazerolle, O.R. van Lier. (2014) Modeling wood fiber attributes using forest inventory and environmental data for Newfoundland's boreal forest. Forest Ecology and Management, 313 : 307–318.
• Béland, M., D.D. Baldocchi, J.-L. Widlowski, R.A. Fournier and al. (2014) On seeing the wood from the leaves and the role of voxel size indetermining leaf area distribution of forests with terrestrial LiDAR. Agricultural and Forest Meteorology, 184 : 82-97.
• Béland, M., J.-L. Widlowski, R.A. Fournier. (2014) A model for deriving voxel-level tree leaf area density estimates from ground-based LiDAR. Environmental Modelling and Software, 51 : 184-189.
• Leboeuf, A., R.A. Fournier. (2013) Estimating stand attributes of boreal forests using digital aerial photography and a shadow fraction method. Can. J. Remote Sensing, 39(3) : 217-231.
• Luther, J., R. Skinner, R.A. Fournier and al. (2013) Predicting wood quantity and quality attributes of balsam fir and black spruce using airborne laser scanner data. Forestry, November : 1-14.
• Nock, C.A., D. Greene, S. Delagrange, M. Follett, R.A. Fournier and al. (2013) In Situ Quantification of Experimental Ice Accretion on Tree Crowns Using Terrestrial Laser Scanning. Plos One, May, 8:5, e64865.
• Mouissa, H., R.A. Fournier. (2013) Mapping stand volumes of Pinus halepensis Mill in a semi-arid region using satellite imagery of the Sénalba Chergui forest in north-central Algeria. Journal of Arid Environments, 92 : 63-75.
• Hopkinson, C., L. Chasmer, D. Colville, R.A. Fournier and al. (2013) Moving Toward Consistent ALS Monitoring of Forest Attributes across Canada : A Consortium Approach, Photogrammetric Engineering & Remote Sensing, 79(2) : 159-173.
• Côté, J.-F., Fournier, R.A., Luther, J.E. (2013) Validation of L-Architect model for balsam fir and black spruce trees with structural measurements. Canadian Journal of Remote Sensing, 39 ( SUPPL.1 ) : S41 - S59.
• Thiffault, N., Fenton, N.J., Munson, A.D., Hébert, F., Fournier, R.A., Valeria, O., Bradley, R.L., Bergeron, Y., Grondin, P., Paré, D., Joanisse, G. (2013) Managing understory vegetation for maintaining productivity in black spruce forests: A synthesis within a multi-scale research model, Forest , 4(3) : 613 - 631.

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